Search Criteria: Research Area is "Research Tools: Cre-lox System"
| Stock Number |
Strain Name Strain Description |
Standard Supply |
| 003474 | B6.129S4-Gt(ROSA)26Sortm1Sor/J | Level 4 |
| Homozygous mice are viable and fertile, with a loxP-flanked DNA STOP sequence preventing expression of the downstream lacZ gene. When crossed with a cre transgenic strain, the STOP sequence is removed and lacZ is expressed in cells/tissues where cre is expressed. These mutant mice may be used as a Cre-reporter strain; to test the tissue/cellular expression pattern of cre transgenic mice. | ||
| 004337 | 129(Cg)-Foxg1tm1(cre)Skm/J | Repository- Live |
| This strain expresses Cre recombinase from the endogenous Foxg1 locus. Forkhead box G1 is required for telencephalon development and is expressed specifically in the telencephalon and discrete head structures. When crossed with a strain containing loxP site flanked sequence of interest, Cre-mediated recombination results in tissue-specific deletion of the target. Recombination occurs in the telencephalon, anterior optic vesicle (developing lens and retina), otic vesicle, facial and head ectoderm, olfactory epithelium, mid-hindbrain junction and pharyngeal pouches. Mice that are homozygous for the targeted mutation die perinatally. Heterozygous mutant mice are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. This mutant mouse strain represents a model that may be useful in studies of telencephalic development. | ||
| 008569 | 129-Alpltm1(cre)Nagy/J | Repository- Live |
| This strain expresses Cre recombinase from the targeted locus. When crossed with a strain containing loxP site flanked sequence, Cre-mediated recombination results in tissue-specific deletion of the flanked sequence. Recombination occurs primarily in embryonic primordial germ cells. Approximately 60% of gonadal cells isolated from embryonic day 13.5 embryos exhibit Cre recombinase activity. Mosaic ectopic recombinase activity does occur. Homozygotes are not viable. This mutant mouse strain represents a model that may be useful in studies of reproductive and endocrine systems development. | ||
| 016240 | 129-Plk1s1tm1Cpl/J | Repository- Live |
| These mice possess loxP sites on either side of exons 5 and 6 of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When these mutant mice are bred to mice that express Cre recombinase, resulting offspring will have exons 5 and 6 deleted in the cre-expressing tissue(s). When bred to a strain with Cre recombinase expression in primordial germ cells (see Stock No. 008569 for example), this mutant mouse strain may be useful in studies of mammalian germ cell differentiation. | ||
| 012888 | 129-Wlstm1.1Lan/J | Repository- Live |
| These Wls floxed mutant mice possess loxP site before the ATG start site in the 5' untranslated region of exon 1 and another upstream of exon 2 of the wntless homolog (Drosophila) (Wls) gene. Mice that are homozygous for this allele are viable, fertile, and normal in size. When these mutant mice are bred to mice that express Cre recombinase, resulting offspring will have exon 1 deleted in cre-expressing tissues, abolishing gene function. When bred to a strain expressing Cre recombinase in the germline, homozygotes fail to develop mesoderm and are embryonic lethal by E8.5. When bred to a strain expressing Cre recombinase in pancreatic precursors, the mutant mice develop pancreatic hypoplasia. When bred to a strain expressing Cre recombinase in neural crest cells, the mutant mouse strain has severe brain malformations and exhibit postnatal lethality. This mutant mouse strain is useful to study Wnt signaling in any organ or tissue that can be targeted ..... For more information please see the full phenotype on the strain data sheet | ||
| 008396 | 129S-Top2btm2Jcw/J | Repository- Live |
| These mice possess loxP sites flanking the 3 exons encoding the active-site tyrosyl residue of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When these mutant mice are bred to mice that express Cre recombinase, resulting offspring will have the 3 exons deleted in the cre-expressing tissue(s). When bred to a strain expressing Cre recombinase during spermatogenesis (see Stock No. 003328 for example), this mutant mouse strain may be useful in studies of neural development. When bred to a strain expressing Cre recombinase in the telencephalon and discreet head structures (see Stock No. 004337, 006084 for example), this mutant mouse strain may be useful in studies of corticogenesis. | ||
| 007179 | 129S.Cg-Tg(UBC-cre/ERT2)1Ejb/J | Repository- Live |
| Mice hemizygous for this Cre-ERT2 transgene are viable and fertile. Mice from this founder line have strong tamoxifen-inducible cre activity in all reported tissue types. The Cre-ERT2 fusion protein consists of Cre recombinase fused to a triple mutant form of the human estrogen receptor; which does not bind its natural ligand (17β-estradiol) at physiological concentrations but will bind the synthetic estrogen receptor ligands 4-hydroxytamoxifen (OHT) and, with lesser sensitivity, ICI 182780. Restricted to the cytoplasm, Cre-ERT2 can only gain access to the nuclear compartment after exposure to OHT. To counteract the mixed estrogen agonist effects of tamoxifen injections, which can result in late fetal abortions in pregnant mice, progesterone may be coadministered. When these Cre-ERT2 mice are bred with mice containing a loxP-flanked sequence of interest, tamoxifen-inducible, Cre-mediated recombination will result in deletion of the flanked sequences in widespread cel ..... For more information please see the full phenotype on the strain data sheet | ||
| 007915 | 129S.FVB-Tg(Amh-cre)8815Reb/J | Repository- Live |
| Mice harboring the Amh-cre transgene are viable and fertile, with expression of Cre recombinase directed by the testis Sertoli cell-specific promoter elements of the anti-Mullerian hormone (Amh) gene. Cre-recombinase activity is reported in testis Sertoli cells during male sexual development as early as E14.5, with no evidence for cre expression detected in other tissues examined. When Amh-cre transgenic males are bred with female mice containing a loxP-flanked sequence, Cre-mediated recombination will result in deletion of the floxed sequence specifically in testis Sertoli cells. These Amh-cre transgenic mice may be useful in generating conditional knockouts in testis Sertoli cells for studying male embryonic sexual differentiation and the regulation of spermatogenesis. | ||
| 003328 | 129S/Sv-Tg(Prm-cre)58Og/J | Repository- Live |
| Mice homozygous for this PrmCre transgene are viable and fertile. Embryonic stem cells containing recombinase transgenes that are expressed in the male germ line, but not in other tissues or in the embryonic stem cells themselves, substantially simplify the production of subtle or conditional mutations in mice. This strain shows that transgenes comprised of the mouse protamine 1 promoter and the Cre recombinase coding sequence mediate the efficient recombination of a cre target transgene in the male germ line, but not in other tissues. This system can be used for reducing the time, effort, and resources required to produce homologously recombined alleles in mice that have been secondarily rearranged by site-specific recombinase. | ||
| 010977 | 129S4/SvJae-Pdgfrbtm11Sor/J | Repository- Live |
| These mice possess loxP sites on either side of the exons encoding the first and second immunoglobulin domain of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When these mutant mice are bred to mice that express Cre recombinase, resulting offspring will have the exons encoding the first and second immunoglobulin domain deleted in the cre-expressing tissue(s). When bred to a strain with Cre recombinase expression in adrenal tissue (see Stock No. 006364 for example), this mutant mouse strain may be useful in studies of steroidogenesis. | ||
| 013184 | 129S4/SvJaeSor-Mycl1tm1.1Rne/J | Repository- Live |
| These L-Mycflox mutant mice possess loxP sites flanking all three exons v-myc myelocytomatosis viral oncogene homolog 1 (Mycl1) targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When these mutant mice are bred to mice that express Cre recombinase, resulting offspring will have all three Mycl1 exons deleted in the cre-expressing tissue. The donating investigator states that this strain may be useful, in combination with other Myc knock-out models, for studying early embryonic growth and organogenesis of the brain, olfactory bulb, and lungs. | ||
| 016830 | 129X1.Cg-Gabrg2tm2Lusc/J | Repository- Live |
| These mice possess loxP sites on either side of exon 8 of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When these mutant mice are bred to mice that express Cre recombinase, resulting offspring will have exon 8 deleted in the cre-expressing tissue(s).
When bred to a strain with Cre recombinase expression in glutamatergic neurons, this mutant mouse strain may be useful in studies of postsynaptic clustering of GABA-A receptors during synaptogenesis. | ||
| 009575 | B6(129S4)-Et(cre/ERT2)119Rdav/J | Repository- Live |
| Mice hemizygous for this enhancer trap transgene are viable and fertile, with expression of the Cre-ERT2 fusion gene under control of the promoter/enhancer regions surrounding the site where the enhancer trap transgene randomly inserted. Cre recombinase activity is observed in brain tissues following tamoxifen administration. The donating investigators may not have assessed expression in tissues other than brain. When these enhancer trap transgenic mice are bred with mice containing a loxP-flanked sequence of interest, tamoxifen-inducible, Cre-mediated recombination will result in deletion of the floxed sequence(s) in cre-expressing tissues in the offspring.
The Cre-ERT2 fusion protein (Cre-ERT2) consists of Cre recombinase fused to a triple mutant form of the human estrogen receptor; which does not bind its natural ligand (17β-estradiol) at physiological concentrations but will bind the synthetic estrogen receptor ligands 4-hydroxytamoxifen (OH ..... | ||
| 012688 | B6(129S4)-Et(cre/ERT2)13866Rdav/J | Repository- Live |
| Mice hemizygous for this enhancer trap lentiviral transgene are viable and fertile, with expression of a a CreERT2 fusion gene (Cre recombinase fused to Cre-ERT2 [a G400V/M543A/L544A triple mutation of the human estrogen receptor ligand binding domain]) under control of the promoter/enhancer regions surrounding the site where the enhancer trap lentiviral transgene randomly inserted. While Cre-ERT2 fusion gene activity is designed to be inducible (observed following tamoxifen administration), the donating investigator reports CreERT2 activity for this line is the same with or without tamoxifen exposure. Specifically, the donating investigator reports Cre recombinase activity in brain tissues as:
nice staining in amygdala, with some cells in ventral striatum, hypothalamus, pallidum, and midbrain. No staining in other tested tissues is reported. When these enhancer trap lentiviral transgenic mice are bred with mice containing loxP-flanked sequences, tamoxifen-inducibl ..... For more information please see the full phenotype on the strain data sheet | ||
| 009581 | B6(129S4)-Et(cre/ERT2)1642Rdav/J | Repository- Live |
| Mice hemizygous for this enhancer trap transgene are viable and fertile, with expression of the Cre-ERT2 fusion gene under control of the promoter/enhancer regions surrounding the site where the enhancer trap transgene randomly inserted. Cre recombinase activity is observed in brain tissues following tamoxifen administration. The donating investigators may not have assessed expression in tissues other than brain. When these enhancer trap transgenic mice are bred with mice containing a loxP-flanked sequence of interest, tamoxifen-inducible, Cre-mediated recombination will result in deletion of the floxed sequence(s) in cre-expressing tissues in the offspring.
For characterization information, see images at the Allen Institute for Brain Science website (Et(cre/ERT2)1642Rdav images). The Cre-ERT2 fusion protein (Cre-ERT2) consists of Cre re ..... | ||
| 009582 | B6(129S4)-Et(cre/ERT2)1645Rdav/J | Repository- Live |
| Mice hemizygous for this enhancer trap transgene are viable and fertile, with expression of the Cre-ERT2 fusion gene under control of the promoter/enhancer regions surrounding the site where the enhancer trap transgene randomly inserted. Cre recombinase activity is observed in brain tissues following tamoxifen administration. The donating investigators may not have assessed expression in tissues other than brain. When these enhancer trap transgenic mice are bred with mice containing a loxP-flanked sequence of interest, tamoxifen-inducible, Cre-mediated recombination will result in deletion of the floxed sequence(s) in cre-expressing tissues in the offspring.
The Cre-ERT2 fusion protein (Cre-ERT2) consists of Cre recombinase fused to a triple mutant form of the human estrogen receptor; which does not bind its natural ligand (17β-estradiol) at physiological concentrations but will bind the synthetic estrogen receptor ligands 4-hydroxytamoxifen (OH ..... | ||
| 009585 | B6(129S4)-Et(cre/ERT2)2047Rdav/J | Repository- Live |
| Mice hemizygous for this enhancer trap transgene are viable and fertile, with expression of the Cre-ERT2 fusion gene under control of the promoter/enhancer regions surrounding the site where the enhancer trap transgene randomly inserted. Cre recombinase activity is observed in brain tissues following tamoxifen administration. The donating investigators may not have assessed expression in tissues other than brain. When these enhancer trap transgenic mice are bred with mice containing a loxP-flanked sequence of interest, tamoxifen-inducible, Cre-mediated recombination will result in deletion of the floxed sequence(s) in cre-expressing tissues in the offspring.
The Cre-ERT2 fusion protein (Cre-ERT2) consists of Cre recombinase fused to a triple mutant form of the human estrogen receptor; which does not bind its natural ligand (17β-estradiol) at physiological concentrations but will bind the synthetic estrogen receptor ligands 4-hydroxytamoxifen (OH ..... | ||
| 009577 | B6(129S4)-Et(cre/ERT2)296Rdav/J | Repository- Live |
| Mice hemizygous for this enhancer trap transgene are viable and fertile, with expression of the Cre-ERT2 fusion gene under control of the promoter/enhancer regions surrounding the site where the enhancer trap transgene randomly inserted. Cre recombinase activity is observed in brain tissues following tamoxifen administration. The donating investigators may not have assessed expression in tissues other than brain. When these enhancer trap transgenic mice are bred with mice containing a loxP-flanked sequence of interest, tamoxifen-inducible, Cre-mediated recombination will result in deletion of the floxed sequence(s) in cre-expressing tissues in the offspring.
For characterization information, see images at the Allen Institute for Brain Science website (Et(cre/ERT2)296Rdav images). The Cre-ERT2 fusion protein (Cre-ERT2) consists of Cre re ..... | ||
| 010689 | B6(129S4)-Et(cre/ERT2)6959Rdav/J | Repository- Live |
| Mice hemizygous for this enhancer trap transgene are viable and fertile, with expression of the Cre-ERT2 fusion gene under control of the promoter/enhancer regions surrounding the site where the enhancer trap transgene randomly inserted. Cre recombinase activity is observed in brain tissues following tamoxifen administration (although some cre activity is reported prior to tamoxifen administration). The donating investigators may not have assessed expression in tissues other than brain. When these enhancer trap transgenic mice are bred with mice containing a loxP-flanked sequence of interest, Cre-mediated recombination will result in deletion of the floxed sequence(s) in cre-expressing tissues in the offspring.
For characterization information, see images at the Allen Institute for Brain Science website (Et(cre/ERT2)6959Rdav images). The Cre- ..... | ||
| 010690 | B6(129S4)-Et(cre/ERT2)7089Rdav/J | Repository- Live |
| Mice hemizygous for this enhancer trap transgene are viable and fertile, with expression of the Cre-ERT2 fusion gene under control of the promoter/enhancer regions surrounding the site where the enhancer trap transgene randomly inserted. Cre recombinase activity is observed in brain tissues following tamoxifen administration. The donating investigators may not have assessed expression in tissues other than brain. When these enhancer trap transgenic mice are bred with mice containing a loxP-flanked sequence of interest, tamoxifen-inducible, Cre-mediated recombination will result in deletion of the floxed sequence(s) in cre-expressing tissues in the offspring.
For characterization information, see images at the Allen Institute for Brain Science website (Et(cre/ERT2)7089Rdav images). The Cre-ERT2 fusion protein (Cre-ERT2) consists of Cre re ..... | ||
| 010696 | B6(129S4)-Et(icre/ERT2)10596Rdav/J | Repository- Live |
| Mice hemizygous for this enhancer trap transgene are viable and fertile, with expression of the Cre-ERT2 fusion gene under control of the promoter/enhancer regions surrounding the site where the enhancer trap transgene randomly inserted. Cre recombinase activity is observed in brain tissues following tamoxifen administration (although some cre activity is reported prior to tamoxifen administration). The donating investigators may not have assessed expression in tissues other than brain. When these enhancer trap transgenic mice are bred with mice containing a loxP-flanked sequence of interest, Cre-mediated recombination will result in deletion of the floxed sequence(s) in cre-expressing tissues in the offspring.
The Cre-ERT2 fusion protein (Cre-ERT2) consists of Cre recombinase fused to a triple mutant form of the human estrogen receptor; which does not bind its natural ligand (17β-estradiol) at physiological concentrations but will bind th ..... | ||
| 012689 | B6(129S4)-Et(icre/ERT2)14163Rdav/J | Repository- Live |
| Mice hemizygous for this enhancer trap lentiviral transgene are viable and fertile, with expression of an iCreERT2 fusion gene (an optimized variant of Cre recombinase [iCre; improved with mammalian codon usage, removed putative cryptic splice sites, altered stop codon, and reduced CpG content to limit the chances of epigenetic silencing in mammals] fused to Cre-ERT2 [a G400V/M543A/L544A triple mutation of the human estrogen receptor ligand binding domain]) under control of the promoter/enhancer regions surrounding the site where the enhancer trap lentiviral transgene randomly inserted. Cre-ERT2 fusion gene activity is designed to be inducible (observed following tamoxifen administration).
Specifically, the donating investigator reports Cre recombinase activity in brain tissues as:
only in hypothalamus (perhaps arcuate nucleus only), no Cre recombinase activity is observed prior to tamoxifen exposure, no Cre recombinase activity in other tested tissues.
When these ..... For more information please see the full phenotype on the strain data sheet | ||
| 012690 | B6(129S4)-Et(icre/ERT2)14208Rdav/J | Repository- Live |
| Mice hemizygous for this enhancer trap lentiviral transgene are viable and fertile, with expression of an iCreERT2 fusion gene (an optimized variant of Cre recombinase [iCre; improved with mammalian codon usage, removed putative cryptic splice sites, altered stop codon, and reduced CpG content to limit the chances of epigenetic silencing in mammals] fused to Cre-ERT2 [a G400V/M543A/L544A triple mutation of the human estrogen receptor ligand binding domain]) under control of the promoter/enhancer regions surrounding the site where the enhancer trap lentiviral transgene randomly inserted. Cre-ERT2 fusion gene activity is designed to be inducible (observed following tamoxifen administration).
Specifically, the donating investigator reports Cre recombinase activity in brain tissues as:
scattered cells in the neocortex, hippocampus, amygdala, striatum, thalamus, hypothalamus, midbrain, pons, medulla, and many cerebellar granule cells. No Cre recombinase activity is observ ..... For more information please see the full phenotype on the strain data sheet | ||
| 012694 | B6(129S4)-Et(icre/ERT2)14915Rdav/J | Repository- Live |
| Mice hemizygous for this enhancer trap lentiviral transgene are viable and fertile, with expression of an iCreERT2 fusion gene (an optimized variant of Cre recombinase [iCre; improved with mammalian codon usage, removed putative cryptic splice sites, altered stop codon, and reduced CpG content to limit the chances of epigenetic silencing in mammals] fused to Cre-ERT2 [a G400V/M543A/L544A triple mutation of the human estrogen receptor ligand binding domain]) under control of the promoter/enhancer regions surrounding the site where the enhancer trap lentiviral transgene randomly inserted. Cre-ERT2 fusion gene activity is designed to be inducible (observed following tamoxifen administration).
Specifically, the donating investigator reports Cre recombinase activity in brain tissues as:
scattered cells in all areas of the brain; with high density of staining in granule cell layer. Dentate Gyrus projections are very obvious. No Cre recombinase activity is observed prior t ..... For more information please see the full phenotype on the strain data sheet | ||
| 012687 | B6(129S4)-Tg(SYN1-icre/mRFP1)9934Rdav/J | Repository- Live |
| Mice hemizygous for this lentiviral transgene are viable and fertile, with expression of a codon-improved Cre recombinase/monomeric red fluorescent protein fusion protein (iCre/mRFP1) under control of the human synapsin I promoter. The donating investigator reports Cre recombinase activity in brain tissues as widespread, with no staining in other tested tissues. The donating investigator did not characterize fluorescent expression of the mRFP1 portion of the fusion protein. When these transgenic mice are bred with mice containing a loxP-flanked sequence of interest, Cre-mediated recombination will result in deletion of the floxed sequence(s) in cre-expressing tissues in the offspring. | ||
| 010774 | B6(Cg)-Calb2tm1(cre)Zjh/J | Repository- Live |
| The Cr-IRES-Cre (Calb2-IRES-Cre) allele harbors an internal ribosome entry site and Cre recombinase in the 3' UTR of the Calb2 (calbindin 2; also called calretinin or CR) locus. As such, cre expression is directed to calretinin interneurons in the brain and cortex by the endogenous Calb2 promoter/enhancer elements. The donating investigator reports that homozygous mice are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When Cr-IRES-Cre mice are bred with mice containing loxP-flanked sequences, Cre-mediated recombination will result in deletion of the floxed sequences in the Calb2-expressing cells of the offspring.
The donating investigator reports Cre recombinase activity is specific and efficient (largely recapitulates the endogenous Calb2 expression pattern with highly efficient recombination). The donating investigator did not examine cre expression in tissues other than brai ..... | ||
| 013730 | B6(Cg)-Calb2tm2.1(cre/ERT2)Zjh/J | Repository- Live |
| The CR-CreER (or CR-CreERT2) knock-in allele was designed to both abolish Calb2 (calbindin 2; also called calretinin or CR) gene function and expresses CreERT2 fusion protein from the Calb2 promoter/enhancer elements. Cre-ERT2 fusion gene activity is inducible; observed following tamoxifen administration. As such, when CR-CreERT2 mice are bred with mice containing loxP-flanked sequences, tamoxifen-inducible Cre-mediated recombination will result in deletion of the floxed sequences in the CR-expressing cells of the offspring.
Heterozygous mice are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. The donating investigator reports that the phenotype of CR-CreER homozygous mice has not been assessed. However, CR-CreER homozygotes may be expected to exhibit the same phenotype as mice homozygous for other null mutations of this gene on a similar genetic background (impaired motor coordination, abn ..... | ||
| 012710 | B6(Cg)-Ccktm2.1(cre/ERT2)Zjh/J | Repository- Live |
| The Cck-CreER (or Cck-CreERT2) knock-in allele both abolishes cholecystokinin (Cck) gene function and expresses the CreERT2 fusion protein from the Cck promoter/enhancer elements. The donating investigator reports that homozygous mice are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. Homozygotes may be expected to have a phenotype similar to other null mutations of this gene and may exhibit metabolic abnormalities of the endocrine/exocrine glands (increased pancreatic amylase).
Cre-ERT2 fusion gene activity is inducible; observed following tamoxifen administration. As such, when Cck-CreERT2 mice are bred with mice containing loxP-flanked sequences, tamoxifen-inducible Cre-mediated recombination will result in deletion of the floxed sequences in the Cck-expressing cells of the offspring. These Cck-CreERT2 mice may be useful in studying brain anatomy, physiology and behavior. The donat ..... | ||
| 012704 | B6(Cg)-Crhtm1(cre)Zjh/J | Repository- Live |
| The CRH-ires-CRE allele harbors an internal ribosome entry site and Cre recombinase in the 3' UTR of the corticotropin releasing hormone locus (Crh). As such, cre expression is directed by the endogenous Crh promoter/enhancer elements. The donating investigator reports that homozygous mice are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When CRH-ires-CRE mice are bred with mice containing loxP-flanked sequences, Cre-mediated recombination will result in deletion of the floxed sequences in the Crh-expressing cells in the offspring.
The donating investigator reports Cre recombinase activity is specific and efficient (largely recapitulates the endogenous Crh expression pattern with highly efficient recombination). They report Cre recombinase activity is observed in CRH positive neurons (some interneurons), and may not have examined cre expression in tissues other than brain.
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| 010705 | B6(Cg)-Dlx5tm1(cre/ERT2)Zjh/J | Repository- Live |
| The Dlx5-CreERT2 knock-in allele both abolishes Dlx5 gene function and expresses a CreERT2 fusion protein (creERT2 fusion protein) from the Dlx5 promoter/enhancer elements. Heterozygous mice are viable and fertile. Homozygous mice are expected to have a knockout phenotype similar to other null mutations of this gene and may exhibit prenatal/perinatal death with craniofacial and nervous system abnormalities. Cre-ERT2 fusion gene activity is inducible; observed following tamoxifen administration. As such, when Dlx5-CreERT2 mice are bred with mice containing loxP-flanked sequence, tamoxifen-inducible Cre-mediated recombination will result in deletion of the floxed sequences in the Dlx5-expressing cells of the offspring.
The donating investigator reports tamoxifen-inducible Cre recombinase activity is specific and efficient (largely recapitulates the endogenous Dlx5 expression pattern with highly efficient inducibility). They report tamox ..... | ||
| 013048 | B6(Cg)-Etv1tm1.1(cre/ERT2)Zjh/J | Repository- Live |
| The ER81-CreER (or ER81-CreERT2, Etv1-CreER, Etv1-CreERT2) knock-in allele was designed to both abolish ets variant gene 1 (Etv1) gene function and expresses CreERT2 fusion protein from the Etv1 promoter/enhancer elements. Cre-ERT2 fusion gene activity is inducible; observed following tamoxifen administration. As such, when ER81-CreERT2 mice are bred with mice containing loxP-flanked sequences, tamoxifen-inducible Cre-mediated recombination will result in deletion of the floxed sequences in the Etv1-expressing cells of the offspring.
Heterozygous mice are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. Although mice homozygous for other null mutations of this gene on a similar genetic background exhibit neuromuscular abnormalities, ataxia and premature lethality, the donating investigator reports that ER81-CreER homozygous mice show no gross abnormalities. ER81 mRNA or protein expression fr ..... | ||
| 008242 | B6(Cg)-Gt(ROSA)26Sortm1(Ikbkb)Rsky/J | Repository- Live |
| Mice homozygous for the R26StopFLikk2ca conditional allele are viable and fertile, with a loxP-flanked STOP cassette preventing transcription of the downstream bicistronic sequences (a FLAG-tagged, constitutively active form of IKbkb (IKK2ca) and EGFP). When bred to mice that express Cre recombinase, the resulting offspring will have the STOP cassette deleted in the cre-expressing tissue(s); resulting in expression of the IKK2ca as well as EGFP fluorescence. Expression of IKK2ca leads to constitutively active NF-kappaB transcription factor activity. These R26StopFLikk2ca mice allow inducible expression of an activated form of Ikbkb (IKK2 or IKK-beta) and subsequent activation of the NF-kappaB transcription factor pathways.
For example, when bred to a strain with a Cd19 null allele and expressing Cre recombinase during the B lymphocyte development (Stock No. 006785), this ..... | ||
| 014175 | B6(Cg)-Irf8tm1.1Hm/J | Repository- Live |
| These mice possess loxP sites on either side of exon 2, which encodes the DNA binding domain. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When these mutant mice are bred to mice that express Cre recombinase, resulting offspring will have exon 2 deleted in the cre-expressing tissue(s). When bred to a strain with Cre recombinase expression in B lymphocytes (see Stock No. 006785 for example), this mutant mouse strain may be useful in studies of B cell differentiation | ||
| 010776 | B6(Cg)-Lhx6tm1(cre/ERT2)Zjh/J | Repository- Live |
| The Lhx6-CreERT2 knock-in allele both abolishes Lhx6 (LIM homeobox protein 6) gene function and expresses the CreERT2 fusion protein (creERT2 fusion protein) from the Lhx6 promoter/enhancer elements. Heterozygous mice are viable and fertile. Homozygous mice are expected to have a knockout phenotype similar to other null mutations of this gene and may exhibit neurological abnormalities and death within a few weeks of birth. Cre-ERT2 fusion gene activity is inducible; observed following tamoxifen administration. As such, when Lhx6-CreERT2 mice are bred with mice containing loxP-flanked sequence(s), tamoxifen-inducible Cre-mediated recombination will result in deletion of the floxed sequence(s) in the Lhx6-expressing cells of the offspring.
The donating investigator reports tamoxifen-inducible Cre recombinase activity recapitulates the endogenous Lhx6 expression pattern, but with low efficiency of induction. They report tamoxifen-induc ..... | ||
| 016235 | B6(Cg)-Narfltm1.1Fsl/J | Repository- Live |
| These Iop1flox mutant mice possess loxP sites flanking exon 1 of the nuclear prelamin A recognition factor-like (Narfl or Iop1) gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. IOP1 is required for cytosolic iron-sulfur protein assembly pathways. Iron-sulfur proteins are involved in the Krebs Cycle, oxidative phosphorylation, translation, iron regulatory pathways, and purine metabolism. When bred to mice that express tissue-specific Cre recombinase, resulting offspring will have exon 1 deleted in the cre-expressing tissues. This strain may be useful for conditional deletion of IOP1 to study the cytoplasmic iron-sulfur complex assembly pathway. | ||
| 014142 | B6(Cg)-Prkaa2tm1.1Sjm/J | Repository- Live |
| These Prkaa2 mutant mice possess loxP sites flanking exon 2 of the protein kinase, AMP-activated, alpha 2 catalytic subunit (Prkaa2) gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. Prkaa2 belongs to the serine/threonine protein kinase family and is the catalytic subunit of the 5'-prime-AMP-activated protein kinase (AMPK). AMPK is a sensor of the energy status of cells and ensures survival during stress. When bred to mice that express tissue-specific Cre recombinase, resulting offspring will have exon 2 deleted in the cre-expressing tissues. When bred to transgenic mice expressing Cre recombinase driven by myxovirus (influenza virus) resistance 1 (Mx1) promoter/enhanced elements, PRKAA2 expression is abolished in hematopoietic cells. This strain may be useful for studying cell growth and energy expenditure. | ||
| 010777 | B6(Cg)-Pvalbtm1(cre/ERT2)Zjh/J | Repository- Live |
| The Pv-CreERT2 (Pvalb-CreERT2) knock-in allele both abolishes Pvalb (parvalbumin; also called PV or Pva) gene function and expresses a CreERT2 fusion protein (creERT2 fusion protein) from the Pvalb promoter/enhancer elements. Homozygous mice are viable and fertile. Homozygotes are expected to have a knockout phenotype similar to other null mutations of this gene and may exhibit muscle contractile, mitochondrial, and/or Purkinje cell abnormalities. Cre-ERT2 fusion gene activity is inducible; observed following tamoxifen administration. As such, when Pv-CreERT2 mice are bred with mice containing loxP-flanked sequence(s), tamoxifen-inducible Cre-mediated recombination will result in deletion of the floxed sequence(s) in the Pvalb-expressing cells of the offspring.
The donating investigator reports tamoxifen-inducible Cre recombinase activity recapitulates the endogenous Pvalb expression pattern, but with low efficiency of induction. The ..... | ||
| 008771 | B6(Cg)-Rorctm3Litt/J | Repository- Live |
| These mice possess loxP sites on either side of the exon 3-6 region of the targeted gene. Mice that are homozygous for this floxed allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When crossed with a Cre recombinase-expressing strain, this strain is useful in eliminating tissue-specific expression of orphan nuclear receptor RORgamma, including the RORgammaT thymus-specific isoform. Germline deletion of RORgamma and RORgammaT induces an abnormality in lymphoid organ development, survival of CD4+ CD8+ double positive thymocytes, and differentiation of Th17 helper T cells. | ||
| 010708 | B6(Cg)-Ssttm1(cre/ERT2)Zjh/J | Repository- Live |
| The Sst-CreERT2 (or SOM-CreERT2) knock-in allele both abolishes Sst gene function and expresses a CreERT2 fusion protein (creERT2 fusion protein) from the Sst promoter/enhancer elements. Heterozygous mice are viable and fertile. Homozygous mice are expected to have a knockout phenotype similar to other null mutations of this gene and may exhibit nervous system and metabolic abnormalities. Cre-ERT2 fusion gene activity is inducible; observed following tamoxifen administration. As such, when Sst-CreERT2 mice are bred with mice containing loxP-flanked sequence(s), tamoxifen-inducible Cre-mediated recombination will result in deletion of the floxed sequence(s) in the Sst-expressing cells of the offspring.
The donating investigator reports tamoxifen-inducible Cre recombinase activity recapitulates the endogenous Sst expression pattern, but with low efficiency of induction. They report tamoxifen-inducible Cre recombinase activity is observed ..... | ||
| 007676 | B6.129(Cg)-Gt(ROSA)26Sortm4(ACTB-tdTomato,-EGFP)Luo/J | Repository- Live |
| Mice homozygous for this mT/mG mutation are viable and fertile. These mice possess loxP sites on either side of a membrane-targeted tdTomato (mT) cassette and express strong red fluorescence in all tissues and cell types examined. Tail or whole body epifluorescence is sufficient to identify mT/mG homozygotes. When bred to Cre recombinase expressing mice, the resulting offspring have the mT cassette deleted in the cre expressing tissue(s), allowing expression of the membrane-targeted EGFP (mG) cassette located just downstream. The donating investigator reports that the ACTB promoter allows stronger and persistent expression of the fluorescent proteins (especially in adult cells) compared to the endogenous Gt(ROSA) locus alone. This double-fluorescent system allows direct live visualization of both recombined and non-recombined cells at single cell resolution, offering an internal control for phenotypic analysis of Cre-induced mosaic mutants and providing a second marker fo ..... For more information please see the full phenotype on the strain data sheet | ||
| 004178 | B6.129(Cg)-Tg(CAG-Bgeo/GFP)21Lbe/J | Repository- Live |
| These Z/EG transgenic mice constitutively express lacZ under the control of the CMV enhancer/chicken actin promoter. Expression is widespread with notable exceptions being liver and lung tissue. Expression is observed throughout all embryonic and adult stages. When crossed with a Cre recombinase-expressing strain, lacZ expression is replaced with enhanced GFP expression in tissues expressing Cre. This double reporter system makes it possible to distinguish a lack of reporter expression from a lack of Cre recombinase expression while providing a means to assess Cre excision activity in live animals and cells.
As an example, when crossed to a strain expressing Cre recombinase in olfactory sensory neurons (see Stock No. 006668), this mutant mouse strain may be useful in lineage tracing. In an attempt to offer alleles on well-characterized or multiple genetic backgrounds, alleles are frequently moved t ..... | ||
| 012941 | B6.129(SJL)-Foxn1tm1.1Dmsu/J | Repository- Live |
| These mice possess loxP sites on either side of exons 5 and 6 of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. RT-PCR analysis of thymic cells isolated from homozygotes reveals the gene product (mRNA) levels are the same as wildtype control. When these mutant mice are bred to mice that express Cre recombinase, resulting offspring will have exons 5 and 6 deleted in the cre-expressing tissue(s).
When bred to a strain with inducible widespread Cre recombinase expression (see Stock No. 004682 for example), this mutant mouse strain may be useful in studies of thymic epithelial differentiation and T cell development. | ||
| 008471 | B6.129(SJL)-Oxtrtm1.1Wsy/J | Repository- Live |
| Mice homozygous for the Oxtrflox allele are viable and fertile, with loxP sites flanking exons 2-3 of the targeted gene. Expression and receptor binding distributions from the Oxtrflox targeted allele are reported to be normal when compared to wild-type. When Oxtrflox mice are bred to mice that express Cre recombinase, the resulting offspring will have the floxed region deleted in the cre-expressing tissue(s). These Oxtrflox mice may be used for spatial and temporal inactivation of the oxytocin receptor in studying (for example) parturition and lactation, as well as social, behavioral, and learning disorders such as autism and anxiety.
These Oxtrflox mice may also be useful along with the Oxt/EGFP AI03 transgenic mice (Stock No. 006043) or oxytocin targeted mutant mice (Stock No. 002713) from the same ..... | ||
| 005319 | B6.129-Cdh1tm2Kem/J | Repository- Live |
| These mice possess loxP sites flanking exons 6 to 10 of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When used in conjunction with a Cre recombinase-expressing strain, this strain is useful in generating tissue-specific mutants of the floxed allele. | ||
| 004152 | B6.129-Ctnnb1tm2Kem/KnwJ | Repository- Live |
| These mice possess loxP sites located in introns 1 and 6 of the targeted gene. Mice that are homozygous for this floxed allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When bred to a strain expressing Cre recombinase in chrondocytes (see Stock No. 003554 for example), this mutant mouse strain may be useful in studies of chrondocyte differentiation. When bred to a strain expressing Cre recombinase in heart(see Stock No. 005650 or 005657 for example), this mutant mouse strain may be useful in studies of cardiovascular disease. When bred to a strain expressing Cre recombinase in midbrain/dorsal spinal cord (see Stock No. 007807 or > ..... | ||
| 008463 | B6.129-Gt(ROSA)26Sortm1(cre/ERT2)Tyj/J | Repository- Live |
| A conditional Cre-ERT2 (Cre recombinase - estrogen receptor T2) cassette was introduced to the gene. The ERT2 moiety retains the Cre recombinase in the cytoplasm until tamoxifen administration releases this inhibition, thus permitting the recombination of genomic loxP sites. Efficient tamoxifen-induced Cre-mediated recombination throughout the body has been demonstrated through crosses with a Cre-responsive beta galactosidase reporter strain. This strain enables temporal control of floxed gene expression in vivo and is reportedly more sensitive to tamoxifen than Stock No. 004847. Homozygotes are viable and fertile. | ||
| 008606 | B6.129-Gt(ROSA)26Sortm1Joe/J | Repository- Live |
| Homozygous ROSA26 GNZ knock-in mice are viable and fertile, with a nuclear-localized green fluorescent protein/beta-galactosidase fusion protein (GFP-NLS-lacZ or GNZ) inserted into the Gt(ROSA)26Sor (ROSA26) locus. Widespread expression of GNZ is blocked by an upstream loxP-flanked STOP sequence (in the absence of Cre recombinase, no expressed GFP or beta-galactosidase activity is observed in GNZ embryos(E9.5-18.5)). When bred to cre expressing mice, offspring will have the STOP sequence deleted in tissues where Cre recombinase is present. The resulting GNZ fusion protein expression allows for enhanced (single cell level) visualization / resolution. The donating investigator reports that Cre recombinase activity can be visualized by direct GFP fluorescence, but the high resolution nuclear staining of GNZ may be best visualized by immunostaining for either GFP or beta-galactosidase. These ROSA26 GNZ mice are useful as a Cre reporter strain; expressing both G ..... For more information please see the full phenotype on the strain data sheet | ||
| 007561 | B6.129-Hif1atm3Rsjo/J | Repository- Live |
| These mice possess loxP sites on either side of exon 2 of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When these mutant mice are bred to mice that express Cre recombinase, resulting offspring will have exon 2 deleted in the cre-expressing tissue(s).
For example, when crossed to a strain expressing Cre recombinase in skeletal and cardiac muscle (see Stock No. 006475), this mutant mouse strain may be useful in studies of the metabolic control of muscle function. When bred to a strain with the targeted null allele in von Hippel-Lindau syndrome homolog, Vhlh (Stock No. 004081) and a strain expressing Cre recombinase in liver (Stock No. 003574), this mutant mouse strain may be use ..... | ||
| 008320 | B6.129-Leprtm2(cre)Rck/J | Repository- Live |
| Mice hemizygous for this targeted mutation are viable and fertile and do not display any gross physical or behavioral abnormalities. Cre activity is demonstrable in the hypothalmus (arcuate, dorsomedial (DMH), lateral (LH), and ventromedial (VMH) nuclei), limbic and cortical brain regions (basolateral amygdaloid nucleus (BLA), piriform cortex (Pir), and lateral entorhinal cortex (LEnt)), and retrosplenial cortex. When bred with a mouse containing a loxP site-flanked sequence of interest, Cre-mediated recombination results in deletion of the flanked genome in tissues that normally express the gene. This strain has been used in virus-assisted mapping of neural inputs and may be useful in studies of neural features of feeding behaviors. | ||
| 004584 | B6.129-Ppargtm2Rev/J | Repository- Live |
| These mice possess loxP sites on either side of exons 1 and 2 of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When bred to a strain expressing Cre recombinase in adipose tissue (see Stock No. 005069 for example), this mutant mouse strain may be useful in studies of insulin resistance. | ||
| 009666 | B6.129-Ppargc1atm2Brsp/J | Repository- Live |
| These mice possess loxP sites on either side of exons 3-5 of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When these mutant mice are bred to mice that express Cre recombinase, resulting offspring will have exons 3-5 deleted in the cre-expressing tissue(s). When bred to a strain expressing Cre recombinase specifically in the liver (see Stock No. 003574 for example), this mutant mouse strain may be useful in studies of hepatic heme biosynthesis and porphyrias. When bred to a strain expressing Cre recombinase specifically in skeletal muscle, this mutant mouse strain may be useful in studies of neuromuscular junction physiology and muscular dystrophy. | ||
| 008100 | B6.129-Prdm1tm1Clme/J | Repository- Live |
| These mice possess loxP sites in introns flanking exons 6 to 8 of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When these mutant mice are bred to mice that express Cre recombinase, resulting offspring will have exons 6 to 8 deleted in the cre-expressing tissue(s). When bred to a strain expressing Cre recombinase during B-lymphocyte development and differentiation (see Stock No. 004126 for example), this mutant mouse strain may be useful in studies of humoral immune response. | ||
| 011029 | B6.129-Rpl22tm1.1Psam/J | Repository- Live |
| Mice homozygous for this RiboTag allele are viable and fertile, with a targeted mutation of the ribosomal protein L22 (Rpl22) locus harboring a loxP-flanked wildtype C-terminal exon 4 followed by an identical C-terminal exon 4 that is tagged with three copies of the hemagglutinin (HA) epitope before the stop codon. Prior to exposure to Cre recombinase, RiboTag mice express the wildtype RPL22 protein (15 kDa). When the RiboTag mice are bred to cre-expressing mice, offspring will have the floxed wildtype exon 4 deleted in the cre-expressing tissue and subsequent use of the downstream HA epitope-tagged exon 4 as the terminal exon. The 23 kDa HA epitope-tagged ribosomal protein (RPL22HA) is incorporated into actively translating polyribosomes. These RiboTag mice allow Cre-mediated HA epitope tagging of ribosomes from user-defined cell types and/or immunoprecipitation of ribosomes bound to mRNA from those specific cell types. | ||
| 014604 | B6.129-Slc17a9tm1.1Rpa/J | Repository- Live |
| Mice homozygous for this Slc17a9flox allele are viable and fertile, with loxP sites flanking exons 2-3 of the solute carrier family 17, member 9 (Slc17a9) gene. Slc17a9 is is a vesicular nucleotide transporter expressed in the adrenal gland, brain, and thyroid gland. When bred to mice that express Cre recombinase, the resulting offspring will have the sequences encoding the endogenous signal peptide deleted in the cre-expressing tissue(s); this is expected to produce a null allele. These mutant mice may be useful in generating conditional mutations for studying the role of Slc17a9 in vesicular storage and ATP exocytosis. | ||
| 004146 | B6.129-Tg(Pcp2-cre)2Mpin/J | Repository- Live |
| These transgenic mice express a cre gene inserted into exon 4 of a Pcp2 gene. Mice homozygous for the insert are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. Recombinase activity is observed in most Purkinje cells and some retinal bipolar neurons. Small amounts of activity are observed in an unidentified population of cells of the central nervous system tissue. Recombination is first observed around postnatal day 6 and is fully established 2 to 3 weeks after birth.
View cre expression characterization. | ||
| 016520 | B6.129P2(129S4)-Eif2c2tm1.1Tara/J | Repository- Live |
| These mice possess loxP sites on either side of exons 9-11 in the Eif2c2 (eukaryotic translation initiation factor 2C, 2) gene, also known as Ago2. Mice that are homozygous for this floxed allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When crossed with a Cre recombinase-expressing strain, the Mid domain is deleted and Ago2 expression is lost, causing functional inactivation of the gene.
For example, when crossed to a strain expressing interferon-inducible Cre recombinase (see Stock No. 003556), this mutant mouse strain may be useful in studies of microRNA homeostasis. | ||
| 006785 | B6.129P2(C)-Cd19tm1(cre)Cgn/J | Repository- Live |
| Homozygous mutant mice are viable, fertile, normal in size, and do not display any gross physical or behavioral abnormalities. Homozygotes have a deficiency in the B-1 subset of B-lymphocytes along with a concomitant reduction in serum IgM. Their ability to respond to T-cell-dependent antigens is severely impaired, and they fail to form splenic germinal centers. In addition to disrupting the targeted gene, the targeting construct also introduced a cre cassette into exon 2 of the targeted gene, effectively placing cre expression under the control of the endogenous promoter. The Cd19 promoter specifically directs cre expression at the earliest stages and throughout B-lymphocyte development and differentiation. Although homozygous mutant mice are Cd19-deficient, heterozygous mice are phenotypically normal, and can be used for specific deletion of loxP-flanked (floxed) targets in B-lymphocytes.
In an attempt to offer alleles on well-characte ..... | ||
| 006084 | B6.129P2(Cg)-Foxg1tm1(cre)Skm/J | Repository- Live |
| This strain expresses Cre recombinase from the endogenous Foxg1 locus. Forkhead box G1 is required for telencephalon development and is expressed specifically in the telencephalon and discrete head structures. When crossed with a strain containing loxP site flanked sequence of interest, Cre-mediated recombination results in tissue-specific deletion of the target. Recombination occurs in the telencephalon, anterior optic vesicle (developing lens and retina), otic vesicle, facial and head ectoderm, olfactory epithelium, mid-hindbrain junction and pharyngeal pouches. Mice that are homozygous for the targeted mutation die perinatally. Heterozygous mutant mice are viable, fertile, normal in size. On the C57BL/6 background, forebrain volume in heterozygotes is substantially reduced especially in the cerebral cortex (40.7%), striatum (29.7%), and hippocampus (18.6%). In the adult, the thalamus is reduced in volume by 21.6%. This mutant mouse strain represents a model that ma ..... For more information please see the full phenotype on the strain data sheet | ||
| 011008 | B6.129P2(Cg)-Gt(ROSA)26Sortm1(tTA)Roos/J | Repository- Live |
| Mice heterozygous for the ROSA:LNL:tTA conditional mutation of the Gt(ROSA)26Sor locus are viable and fertile, with a loxP-flanked STOP cassette preventing transcription of a downstream optimized/modified tetracycline-controlled transactivator protein ("mtTA"). Applying both Cre-lox and Tet-Off technologies, these ROSA:LNL:tTA mutant mice may be useful to generate compound mutant mice in which expression of a tetracycline-responsive promoter element (TRE; also called tet-operator or tetO)-driven gene of interest can be both directed to the cell types defined by the chosen Cre recombinase expression, as well as turned off by the addition of tetracycline (or its analog doxycycline (dox)). | ||
| 010611 | B6.129P2(Cg)-Ighg1tm1(IRES-cre)Cgn/J | Repository- Live |
| Homozygous mice are viable, fertile, normal in size, and do not display any gross physical or behavioral abnormalities. Cre recombinase expression is induced by transcription of the immunoglobulin gamma1 heavy chain constant region gene (Cg1) segment and is detected as early as 4 days in 25-50% of germinal center B cells following immunization with T cell dependent antigens. By 12-14 days, 75-85% of germinal center B cells exhibit Cre-mediated recombination. Cre is detected mostly in IgG1, but also in IgG2 and IgA-expressing germinal center B cells as well as a small number of IgM+ germinal center B cells precursors.
Homozygotes exhibit a reduction in IgG1+ memory B cells and in IgG1 serum antibody titers. When bred with a mouse carrying a loxP site-flanked DNA sequence, Cre-mediated recombination results in deletion of the flanked genome segment in tissues that express the Cre transgene. This mutant mouse strain may be useful to study gene function in germinal cent ..... For more information please see the full phenotype on the strain data sheet | ||
| 008888 | B6.129P2(SJL)-Myd88tm1Defr/J | Repository- Live |
| These mice possess loxP sites on either side of exon 3 of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When these mutant mice are bred to mice that express Cre recombinase, resulting offspring will have exon 3 deleted in the cre-expressing tissue(s).
When bred to a strain with inducible Cre recombinase expression in dendritic cells (see Stock No. 008068 for example), this mutant mouse strain may be useful in studies of Toll-like receptor signaling during immune responses. When bred to a strain with Cre recombinase expression in hematopoietic cells (see Stock No. 008610 for example), this mutant mouse strain may be useful in studies of Toll-like receptor signaling and natural killer cells. When bred to a strain with Cre reco ..... | ||
| 013224 | B6.129P2-Abl1tm2.1Goff/J | Repository- Live |
| These Abl1flox/flox mutant mice posses loxP sites flanking exons 5-6 of the c-abl concogene 1, non-receptor tyrosine kinase gene, Abl1. Mice that are homozygous for this allele are viable, fertile, and normal in size. When these Abl1flox/flox mutant mice are bred to mice that express Cre recombinase, the resulting offspring will have exons 5-6 deleted in the cre-expressing tissue. This strain may be useful for studying the growth, development, and physiology of cardiac tissue. | ||
| 008765 | B6.129P2-Cbfbtm1Itan/J | Repository- Live |
| These mice possess loxP sites on either side of exon 5 in the targeted gene. Mice that are homozygous for this floxed allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When crossed with a Cre recombinase-expressing strain, this strain is useful in eliminating tissue-specific expression of the gene.
When bred to CD4-cre mice, homozyogous animals have reduced peripheral T cell numbers, abnormal CD4/CD8 expression, and altered response to antigen receptor stimulation. In addition, these mice show autoimmune colitis and asthma-like syndrome. | ||
| 008767 | B6.129P2-Cxcr4tm2Yzo/J | Repository- Live |
| These mice possess loxP sites on either side of exon 2 of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When these mutant mice are bred to mice that express cre recombinase, resulting offspring will have exon 2 deleted in the cre-expressing tissue(s).
For example, when bred to a strain with a Cd19 null allele and expressing Cre recombinase during the B lymphocyte development (Stock No. 004126, Stock No. 006785), this mutant mouse strain may be useful in studies of B lymphocyte development. | ||
| 009669 | B6.129P2-Gt(ROSA)26Sortm1(DTA)Lky/J | Repository- Live |
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Homozygotes are viable, fertile and do not display any gross physical or behavioral abnormalities. When these ROSA-DTA mice are crossed with a Cre recombinase strain, the floxed-STOP cassette is deleted and the Gt(ROSA)26Sor promoter drives expression of diptheria toxin in the cre-expressing cells. These ROSA-DTA mice allow selective ablation in a tissue/cell-specific manner.
Of note, ROSA-DTA mice are also available on a BALB/c congenic background (see Stock No. 009670). | ||
| 008513 | B6.129P2-Gt(ROSA)26Sortm1(Trpv1,ECFP)Mde/J | Repository- Live |
| A loxP-flanked neomycin cassette blocks expression of the rat Trpv1 (transient receptor potential cation channel, subfamily V, member 1) gene driven by the Gt(ROSA)26Sor gene in this targeted mutation/knock-in strain. Upon crossing to a tissue-specific Cre-expressing strain, TRPV1 and enhanced cyan fluorescent protein (ECFP) is expressed from the ROSA locus. Cells expressing TRPV1 are sensitive to capsaicin and similar chemical agonists. Treatment of mice or cells that have undergone Cre excision to remove the neomycin cassette can induce strong inward currents, trigger action potentials and activate stereotyped behaviors, allowing cell-type specific chemical genetic control of neuronal activity in vitro and in vivo. Mice that are homozygous for the floxed allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities.
When bred to a strain with widespread expression of Cre recombinase (see Stock No. > ..... | ||
| 013586 | B6.129P2-Gt(ROSA)26Sortm1Nik/J | Repository- Live |
| These 3373 3-state Cre-sensitive (3373 3SCS) mice contain a construct designed to insert (from 5' to 3') a floxed-STOP cassette, tdTomato open reading frame (ORF), and a floxed-internal ribosome entry site (IRES) fused to an enhanced green fluorescent protein (GFP) ORF. The IRES-eGFP element was flanked by 3373 mutant loxP sites (which recombine at 10% the efficiency of wildtype loxP sites). This vector was inserted into the Gt(ROSA)26Sor locus allowing for widespread expression. The floxed-STOP cassette causes termination of transcription and results in no expression of either fluorophore. When bred to mice that express Cre recombinase, offspring will have the floxed-STOP cassette deleted in the cre-expressing tissue(s). This deletion results in tdTomato and/or GFP expression depending on how much Cre-recombinase the cells express. When crossed with a strain expressing low amounts of Cre recombinase, partial recombination results in tdTomato+ GFP For more information please see the full phenotype on the strain data sheet | ||
| 013587 | B6.129P2-Gt(ROSA)26Sortm3Nik/J | Repository- Live |
| These 5172 3-state Cre-sensitive (5172 3SCS) mice contain a construct designed to insert (from 5' to 3') a floxed-STOP cassette, tdTomato open reading frame (ORF), and a floxed-internal ribosome entry site (IRES) fused to an enhanced green fluorescent protein (GFP) ORF. The IRES-eGFP element was flanked by 5172 mutant loxP sites (which recombine at 30% the efficiency of wildtype loxP sites). This vector was inserted into the Gt(ROSA)26Sor locus allowing for widespread expression. The floxed-STOP cassette causes termination of transcription and results in no expression of either fluorophore. When bred to mice that express Cre recombinase, offspring will have the floxed-STOP cassette deleted in the cre-expressing tissue(s). This deletion results in tdTomato and/or GFP expression depending on how much Cre-recombinase the cells express. When crossed with a strain expressing low amounts of Cre recombinase, partial recombination results in tdTomato+ GFP For more information please see the full phenotype on the strain data sheet | ||
| 008875 | B6.129P2-Lgr5tm1(cre/ERT2)Cle/J | Repository- Live |
| While homozygous mice are not viable, heterozygous Lgr5-EGFP-IRES-CreERT2 mice are viable and fertile; harboring a Lgr5-EGFP-IRES-creERT2 "knock-in" allele that both abolishes Lgr5 (Gpr49) gene function and expresses EGFP and CreERT2 fusion protein from the Lgr5 promoter/enhancer elements. EGFP fluorescence is observed in crypt base columnar cells in small intestine (aka stem cells of the small intestine) and colon. Cre-ERT2 fusion gene activity is inducible; observed in the same cells only following tamoxifen administration. EGFP or inducible CreERT2 expression may also be observed in other Lgr5-expressing cell types (including pre-malignant mouse adenomas, colon cancer cells, epithelial stem cells of the stomach gland, basal epithelial layer stem cells of the mammary glands, and hair follicle stem cells).
The donating investigator reports variegated expression of the Lgr5-EGFP-IRES-CreERT2 transgene in the small intestine and colon (something which may h ..... | ||
| 004781 | B6.129P2-Lyz2tm1(cre)Ifo/J | Repository- Live |
| This strain expresses Cre recombinase from the endogenous Lyzs locus. When crossed with a strain containing loxP site flanked sequence of interest, Cre-mediated recombination results in deletion of the targeted gene in the myeloid cell lineage, including monocytes, mature macrophages, and granulocytes. Mice that are homozygous for the targeted mutation are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. This strain represents an effective tool for generating myeloid cell-specific targeted mutants. | ||
| 007177 | B6.129P2-Mecp2tm1Bird/J | Repository- Live |
| These mice possess two functional loxP sites flanking exons 3-4 of the targeted gene on the X chromosome (the donating investigator reports that the middle loxP site is non-functional). Homozygous females and hemizygous males are viable and fertile. Northern blot analysis showed the expected mature transcript from the Mecp2lox locus as well as a transcript in which the beta-globin intron was unspliced. When these mutant mice are bred to mice that express Cre recombinase, resulting offspring will have exons 3-4 deleted in the cre-expressing tissue(s). Mice with this X-linked floxed mutation may be useful in neurological and developmental studies of Rett syndrome. For example, when crossed to a strain expressing Cre recombinase in nervous tissue (see Stock No. 003771), this mutant mouse strain develops a neurological phenotype that mimics Rett syndrome. When crossed to a strain expressing Cre ..... | ||
| 006849 | B6.129P2-Mecp2tm2Bird/J | Repository- Live |
| These mice possess a loxP-flanked STOP cassette in intron 2 of the targeted gene on the X chromosome. Western blot and hybridization analysis confirm the absence of wildtype protein from the targeted allele (although the donating investigator reports that the targeted allele produces a "read-through" transcript which does not give rise to detectable levels of protein but makes it difficult to discriminate between the "flox-stopped" and reactivated alleles by RT-PCR). Hemizygous (Mecp2lox-Stop/y) males do not breed and develop Rett syndrome symptoms (reduced mobility, hindlimb clasping) at approximately 6 weeks of age, with death occurring at approximately 11 weeks of age. Heterozygous females are fertile until developing Rett syndrome characteristics at 4-12 months of age. This Rett syndrome-like phenotype is similar to that observed for the traditional knock-out allele (see Stock No. 003890). Cre recombin ..... For more information please see the full phenotype on the strain data sheet | ||
| 008336 | B6.129P2-Ptpn6tm1Rsky/J | Repository- Live |
| Mice homozygous for the Ptpn6f allele are viable and fertile, with loxP sites flanking exon 1(II) through most of exon 9 of the targeted gene. When bred to mice that express Cre recombinase, the resulting offspring will have this region deleted in cre-expressing tissue(s). These Ptpn6f mice may be useful in generating conditional mutations for studying the role of Ptpn6 (Shp1) in inflammation and immunology research. For example, when bred to a strain with inducible Cre recombinase expression in liver and lymphocytes (see Stock No. 003556), this mutant mouse strain may be useful in studying the motheaten (me) phenotype; characterized by widespread inflammation and autoimmunity.
When bred to a strain with a Cd19 null allele and expressing Cre recombinase during the B lymphocyte development (Stock No. 004126, Stock No. > ..... | ||
| 008773 | B6.129P2-Runx3tm1Itan/J | Repository- Live |
| Exon 4 of these targeted mutant mice is flanked by loxP sites. Mice that are homozygous for this floxed allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When crossed with a Cre recombinase-expressing strain, this strain is useful in eliminating tissue-specific expression of the gene. When crossed to either a CD4-cre or Lck-cre mouse strain, the numbers of CD8+ mature thymocytes and CD8+ T cells in spleen or lymph nodes are reduced and show defective responses to antigen receptor stimulation. CD8+ T cells express CD4 and the ectopic CD4 expression is enhanced when the floxed region is excised. | ||
| 008462 | B6.129P2-Trp53tm1Brn/J | Repository- Live |
| Exons 2-10 are flanked by loxP sites in this conditional targeted mutation. Mice homozygous for the floxed allele do not show any increase in disease incidence for at least a year. When bred to mice with a cre recombinase gene under the control of a promoter of interest, expression is deleted in the tissue of interest. For example, when crossed to a strain expressing Cre recombinase in the nervous system (see Stock No. 003771), this mutant mouse strain may be useful in studies of medulloblastoma formation. When crossed to a strain expressing Cre recombinase in the central nervous system (see Stock No. 004600), this mutant mouse strain may be useful in studies of astrocytoma formation. When crossed to a strain expressing Cre recombinase in virgin and lactating mammary glands (see Stock No. 003553), th ..... | ||
| 016222 | B6.129S(Cg)-Id2tm1.1(cre/ERT2)Blh/ZhuJ | Repository- Live |
| The Id2-CreERT2 knockin allele was designed to both abolish inhibitor of DNA binding 2 (Id2) gene function and express CreERT2 fusion protein from the Id2 promoter/enhancer elements. Cre-ERT2 fusion gene activity is inducible and can be observed following tamoxifen administration. As such, when Id2-CreERT2 knockin mice are bred with mice containing loxP-flanked sequences, tamoxifen-inducible Cre-mediated recombination will result in deletion of the floxed sequences in the Id2-expressing cells of the offspring.
No mRNA or protein expression from the Id2-CreERT2 allele is observed. The donating investigator reports that homozygous mice are runted with defective lung alveolarization. Other organ systems have not been evaluated. However, Id2-CreERT2 homozygotes may be expected to exhibit the same phenotype as mice homozygous for other null mutations of this gene (including postnatal lethality and defects of the immune system, digestive tract, ..... | ||
| 013594 | B6.129S-Atoh1tm5.1(Cre/PGR)Hzo/J | Repository- Live |
| A targeting vector was designed to replace the coding sequence of the atonal homolog 1 (Atoh1) gene with a modified Cre-recombinase-progesterone receptor fusion protein (Cre-PR), abolishing gene function. Homozygous Math1Cre*PR mice die before birth due to central respiratory failure. Heterozygous mice are viable,fertile, and normal in size. The Math1Cre*PR/+ allele has expression of the Cre*PR fusion protein under control of the Math1 promoter/enhancer elements. Cre*PR fusion gene activity is inducible; observed only 6-12 hours after administration of RU486, a competitive progesterone receptor antagonist. As such, when Math1Cre*PR/+ mice are bred with mice containing loxP-flanked sequence, RU486-inducible Cre-mediated recombination will result in deletion of the floxed sequences in the Math1-expressing cells of the offspring. As such Math1 is expressed in the hindbrain, specifically in the conscious pro ..... For more information please see the full phenotype on the strain data sheet | ||
| 010525 | B6.129S-Notch2tm3Grid/J | Repository- Live |
| These mice possess loxP sites on either side of exon 3 of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When these mutant mice are bred to mice that express Cre recombinase, resulting offspring will have exon 3 deleted in the cre-expressing tissue(s).
When bred to a strain with early embryonic Cre recombinase expression (see Stock No. 003755 for example), this mutant mouse strain may be useful in studies of the Notch pathway during development. When bred to a strain expressing Cre recombinase in embryos, in particular, cardiac neural crest cells (see Stock No. 005549 for example), this mutant mouse strain may be useful in studies of vascular smooth muscle development and the cardiovascular defects associated with Alagille syndrome ..... | ||
| 013542 | B6.129S1(Cg)-Dnm2tm1.1Pdc/J | Repository- Live |
| These mice possess loxP sites on either side of exon 2 of the Dnm2 (dynamin 2) gene. Mice that are homozygous for this floxed allele are viable, fertile, and do not display any gross physical or behavioral abnormalities. When crossed with a Cre recombinase-expressing strain, this floxed strain is useful in eliminating expression of Dnm2 in a tissue-specific fashion (documented in cultured fibroblasts). Germline deletion results in embryonic lethality. This strain may be useful in further characterizing the role of this gene in endocytosis. | ||
| 009380 | B6.129S1-Irf4tm1Rdf/J | Repository- Live |
| These mice possess loxP sites on either side of exons 1 and 2 of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When these mutant mice are bred to mice that express Cre recombinase, resulting offspring will have exons 1 and 2 deleted and GFP expression in the cre-expressing tissue(s). When crossed to mice that express Flp recombinase, the entire targeting construct, including exons 1 and 2, are deleted in the FLP expressing tissues. When bred to a strain expressing Cre recombinase in B lymphocytes (see Stock No. 006785 for example), this mutant mouse strain may be useful in studies of plasma cell development and immunoglobulin class switch recombination.
When bred to a strain expressing Cre recombinase in T regulatory cells, this mutant mouse strain may be useful in studies of autoimmune ..... | ||
| 006600 | B6.129S1-Mnx1tm4(cre)Tmj/J | Repository- Live |
| Mice heterozygous for this HB9cre targeted mutation are viable and fertile, with cre expression replacing HB9 (Hlxb9 or Mnx1) expression. Under control of the endogenous upstream elements, cre expression is directed to motor neurons. In heterozygotes, cre expression coincides with HB9 expression. Homozygous HB9cre mice die at or soon after birth, with expression of Cre recombinase likewise directed to motor neurons but no expression of endogenous HB9. When these HB9cre mice are bred with mice containing a loxP-flanked sequence of interest, Cre-mediated recombination in the resulting offspring leads to deletion of the flanked sequences in Mnx1/HB9 expressing cells; making them useful in neurodevelopmental studies of homeobox genes, motor neuron function and differentiation, and the central nervous system. | ||
| 015828 | B6.129S2(FVB)-Pak4tm2.1Amin/J | Repository- Live |
| These Pak4 floxed mutant mice possess loxP sites flanking exons 2-4 of the p21 protein (Cdc42/Rac)-activated kinase 4 (Pak4) gene. Homozygotes are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. Pak4 is a member of the group B family of PAK serine/threonine kinases and is expressed early in development in a variety of tissues. It is involved in the formation of filopodia in response to Cdc42, promoting neuronal growth. When these mutant mice are bred to mice that express Cre recombinase, resulting offspring will have exon 2-4 deleted in cre-expressing tissues. This strain may be useful for studying the role of Pak4 in the development of extraembryonic tissue, embryonic vasculature, and the placenta. | ||
| 005628 | B6.129S2-Emx1tm1(cre)Krj/J | Repository- Live |
| Mice homozygous for the targeted mutation are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. This strain expresses Cre recombinase from the endogenous Emx1 locus. Western blot analysis of cortical brain tissue does not detect reduced endogenous gene product (protein). When crossed with a strain containing a loxP-site flanked sequence, Cre-mediated recombination results in tissue-specific deletion of the flanked sequence. Recombination occurs in approximately 88% of the neurons of the neocortex and hippocampus, and in the glial cells of the pallium, mimicking the pattern of expression of the endogenous gene. Further, the donating investigator reports that Cre recombinase is also expressed in a subset of male germline cells, thus some offspring from a cre; floxed male will have the floxed allele recombined in all cells. This mutant mouse strain represents a model that may be useful in studies of forebrain development and f ..... For more information please see the full phenotype on the strain data sheet | ||
| 014089 | B6.129S2-Rbfox1tm1.1Dblk/J | Repository- Live |
| These Fox1flox mutant mice possess loxP sites flanking exons 11-12 of the RNA binding protein, fox-1 homolog 1 (Rbfox1) gene. Mice that are homozygous for this allele are viable, fertile, and normal in size. Fox-1 is expressed in brain, heart, and skeletal muscle and regulates alternative splicing in vertebrates by binding specifically to (U)GCAUG sequences. When these mutant mice are bred to mice that express Cre recombinase, the resulting offspring will have exons 11-12 deleted in the Cre-expressing tissue, resulting in inactivation of Fox-1 gene function.
For example, when crossed to a strain expressing Cre recombinase in the central and peripheral nervous system (see Stock No. 003771), this mutant mouse strain may be useful in studies of neuronal excitation and seizures. | ||
| 012933 | B6.129S4(C)-Vhltm1Jae/J | Repository- Live |
| This strain contains loxP sites flanking the Vhl promoter and exon 1. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. Cre-mediated recombination results in the deletion of the promoter and exon 1. Studies in which liver-specific inactivation of the Vhl gene was achieved by breeding this strain with albumin promoter driven-Cre mice (see Stock No. 003574 for example) resulted in hemizygous mice that exhibit cavernous hemangiomas of the liver, a rare component of the human von Hippel-Lindau (VHL) disease.
When bred to a strain expressing Cre recombinase in the myeloid cell lineage (see Stock No. 004781 for example), this mutant mouse strain may be useful in studies of myeloid cell mediated inflammation. When bred to a strain expressing Cre recombina ..... | ||
| 007668 | B6.129S4(Cg)-Arntltm1Weit/J | Repository- Live |
| Mice homozygous for this conditional (floxed) allele possess loxP sites flanking exon 8 of the targeted gene and are viable and fertile, with circadian behavioral rhythms indistinguishable from wildtype littermates. When bred to mice that express Cre recombinase, the resulting offspring will have the exon encoding the ARNTL (BMAL1) basic helix-loop-helix (bHLH) domain deleted in the cre-expressing tissue(s). These Bmal1-floxed mutant mice may be useful in generating conditional mutations (whole-mouse or tissue-specific) to study the role of circadian clock/circadian rhythm in physiological and behavioral regulation.
For example, when crossed to a strain expressing Cre recombinase in the retina (see Stock No. 005105), this mutant mouse strain may be useful in studies of the circadian clock of the retina. | ||
| 014156 | B6.129S4(Cg)-Cdk5tm1.1Lht/J | Repository- Live |
| These Cdk5 floxed mutant mice possess loxP sites flanking exons 1-5. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When bred to mice that express Cre recombinase, resulting offspring lack detectable Cdk5 in the cre-expressing tissues. | ||
| 006955 | B6.129S4(FVB)-Insrtm1Khn/J | Repository- Live |
| Mice homozygous for this IRlox allele are viable and fertile. These mutant mice have loxP sites flanking exon 4 of the targeted gene. When bred to Cre-recombinase expressing mice, offspring will have a deletion of exon 4 in the cre expressing tissue(s). These "floxed" mice may be useful in studying insulin receptor function in several different tissues (including pancreas, liver, and skeletal muscle), as well as diabetes and glucose regulation.
For example, when crossed to a strain expressing Cre recombinase in the central and peripheral nervous system (see Stock No. 003771), this mutant mouse strain may be useful in studies of glucose homeostasis. When crossed to a strain expressing Cre recombinase in skeletal and cardiac muscle (see Stock No. 006475), this mutant mouse strain may be useful in studies of diabetes. When cr ..... | ||
| 010490 | B6.129S4-Clocktm1Rep/J | Repository- Live |
| These mice possess loxP sites on either side of exons 5 and 6 of the targeted gene. Mice that are homozygous for this conditional allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When these mutant mice are bred to mice that express Cre recombinase, resulting offspring will have exons 5 and 6 deleted in the cre-expressing tissue(s). When bred to a strain expressing Cre recombinase in the male germ line (see Stock No. 003328 for example), this mutant mouse strain may be useful in studies of circadian rhythm and behavior. | ||
| 010487 | B6.129S4-Csnk1dtm1Drw/J | Repository- Live |
| These mice possess loxP sites on either side of exon 2 of the targeted gene. Mice that are homozygous for this conditional allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When these mutant mice are bred to mice that express Cre recombinase, resulting offspring will have exon 2 deleted in the cre-expressing tissues. After Cre-mediated excision of exon 2, a mutant gene product (protein) is detected by Western blot analysis of liver tissue. This mutant protein is relatively unstable, does not interact with PER (Period) proteins, and does not have biological activity with respect to PER protein phosphorylation. This mutant mouse strain may be useful in generating conditional mutations for studying circadian rhythm and behavior. | ||
| 010489 | B6.129S4-Csnk1etm1Drw/J | Repository- Live |
| These mice possess loxP sites on either side of exons 2 and 3 of the targeted gene. Mice that are homozygous for this conditional allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When these mutant mice are bred to mice that express Cre recombinase, resulting offspring will have exons 2 and 3 deleted in the cre-expressing tissue(s). This mutant mouse strain may be useful in generating conditional mutations for studying circadian rhythm and behavior. | ||
| 005246 | B6.129S4-Grin1tm2Stl/J | Repository- Live |
| These mice possess loxP sites flanking approximately 12kb of sequence of the targeted gene that encodes the entire transmembrane domain and C-terminal region. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When bred to a strain expressing Cre recombinase in the CA3 region of the hippocampus (see Stock No. 006474 for example), this mutant mouse strain may be useful in studies of associative memory recall. When bred to a strain expressing Cre recombinase in the CA1 region of the hippocampus (see Stock No. 005359 for example), this mutant mouse strain may be useful in studies of nonspacial memory. | ||
| 008179 | B6.129S4-Krastm4Tyj/J | Repository- Live |
| This strain carries a point mutation (G12D) whose expression is blocked by the presence of a loxP-flanked stop codon. Homozygotes die in utero. Cre-mediated recombination can excise the stop codon and permit the oncogenic protein to be expressed. Intranasal infection with an adenovirus encoding Cre results in a very high frequency of lung tumors and permits controlled timing of tumor initiation and tumor multiplicity. This strain may be useful in studies of cancer and development. When bred to a strain expressing Cre recombinase under the control of a tetracycline-responsive promoter element and a strain expressing a tetracycline-controlled activator protein in lung epithelial cells (see Stock No. 006234 and 006235 respectively), this mutant mouse strain may be useful in studies of lung development.
When bred to a strain expressing Cre recombinase in the male g ..... | ||
| 003755 | B6.129S4-Meox2tm1(cre)Sor/J | Repository- Live |
| This strain expresses Cre recombinase under the control of the endogenous Meox2 promoter. Expression of Cre recombinase is observed in epiblast-derived tissues as early as embryonic day 5. The insertion creates a null allele for the Meox2 gene. Homozygous mice are viable on this background but exhibit an overall reduction in muscle mass and the absence of specific muscles resulting in abnormal limb posture and reduced motility. This phenotype is variable. As many as 80% of homozygotes are severely affected, fail to thrive and die before weaning. Some homozygotes (10%) exhibit clefting of the secondary palate. These mice can be utilized as a deleter strain for loxP flanked DNA and provide an alternative to tetraploid embryo analysis. | ||
| 011009 | B6.129S4-Mtortm1.2Koz/J | Repository- Live |
| Mice homozygous for this mTORfl allele are viable and fertile, with loxP sites flanking exons 1-5 of the targeted gene. When bred to mice that express Cre recombinase, the resulting offspring will have the sequences encoding the putative transcription start site and the coding sequence through coding exon 5 deleted in the cre-expressing tissue(s). These mTORfl mutant mice may be useful in generating conditional mutations for studying mTOR and mTOR complex signaling; including regulation of cell growth, cell proliferation/differentiation, cell survival, cancer, tumor cell motility and metastasis, the RTK-PI3K-mTOR signaling axis, stem cell development, cytokine signaling, and T cell lineage commitment.
For example, when bred to a strain expressing Cre recombinase in adult striated muscle fibers and embryonic striated muscle cells of the somites and heart (see Stock No. 006149 for example), ..... | ||
| 007893 | B6.129S4-Myf5tm3(cre)Sor/J | Repository- Live |
| This strain expresses Cre recombinase from the endogenous Myf5 locus. When crossed with a strain containing loxP site flanked sequence of interest, Cre-mediated recombination results in tissue-specific deletion of the target. Recombination occurs skeletal muscle and the dermis, and in several ectopic locations. Homozygotes for this allele have a perinatal lethal phenotype and die at birth. Homozygotes display abnormal rib development and some fusions of the cervical or thoracic vertebrae. This mutant mouse strain represents a model that may be useful in studies of skeletal development.
In an attempt to offer alleles on well-characterized or multiple genetic backgrounds, alleles are frequently moved to a genetic background different from that on which an allele was first characterized. This is the case for the strain above. It should be noted that the phenotype could vary from that originally described. We will modify the strain description if necessary as p ..... | ||
| 016132 | B6.129S4-Perptm2Att/J | Repository- Live |
| 010671 | B6.129S4-Pkd1tm2Ggg/J | Repository- Live |
| These mice possess loxP sites on either side of exons 2 through 4 of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When these mutant mice are bred to mice that express Cre recombinase, resulting offspring will have exons 2 through 4 deleted in the cre-expressing tissue(s).
For example, when crossed to a strain with widespread Cre recombinase expression (see Stock No. 003553), this mutant mouse strain may be useful in studies of polycystic kidneys. | ||
| 006440 | B6.129S4-Ptentm1Hwu/J | Repository- Live |
| These mice possess loxP sites flanking exon 5 of the targeted gene. Mice homozygous for the"floxed" allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When used in conjunction with a Cre recombinase-expressing strain, this strain is useful in generating tissue-specific mutants of the floxed allele.
For example, when crossed to a strain expressing Cre recombinase in astrocytes (see Stock No. 012887), this mutant mouse strain may be useful in studies of neurogenesis. When crossed to a strain expressing Cre recombinase in the central nervous system (see Stock No. 004600), this mutant mouse strain may be useful in studies of glia differentiation and cerebellar development. In an attempt to offer alleles on well-characterized or multiple genetic backgrounds, alleles are frequently moved to ..... | ||
| 009673 | B6.129S6(C)-Gt(ROSA)26Sortm3(HIF1A*)Kael/J | Repository- Live |
| These LSL-HIF1dPA mice conditionally express a form of hemagglutinin (HA)-tagged human HIF1A (HIF1&alpha, HIF1dPA) cDNA that escapes recognition by the von Hippel-Lindau tumor suppressor protein by virtue of proline to alanine substitutions. When crossed with a tissue-specific cre strain, excision of a floxed stop cassette enables expression of the cDNA driven by the endogenous mouse Gt(ROSA)26Sor promoter. There is no expression until the mice are exposed to Cre recombinase. This strain may be useful in studies of von Hippel-Lindau disease mechanisms.
For example, when crossed to a strain expressing Cre recombinase in liver (see Stock No. 003574), this mutant mouse strain may be useful in studies of VHL disease. | ||
| 007611 | B6.129S6(SJL)-Cdh2tm1Glr/J | Repository- Live |
| These mice possess loxP sites on either side of exon 1 of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When these mutant mice are bred to mice that express Cre recombinase, resulting offspring will have exon 1 deleted in the cre-expressing tissue(s). When bred to a strain with inducible Cre recombinase expression in cardiac cells (see Stock No. 005657 for example), this mutant mouse strain may be useful in studies of myocardium physiology. | ||
| 015840 | B6.129S6-Itga8tm1.1Rdav/J | Repository- Live |
| Mice homozygous for this f(α8) conditional allele are viable and fertile, with loxP sites flanking the last two coding exons (exons 29-30) of the Itga8 gene (also called integrin alpha 8, alpha8-integrin, or α8-integrin). When bred to mice that express Cre recombinase, the resulting offspring will have the sequences encoding the transmembrane and the cytoplasmic domains deleted in the cre-expressing tissue(s). These f(α8) mutant mice may be useful in generating conditional mutations for studying the role of Itga8 transmembrane cell adhesion receptors in neuronal function in the developing and adult central nervous system, including intracellular signaling, behavior, synaptic plasticity, and memory formation.
For example, when f(α8) mice are bred to mice expressing Cre recombinase in forebrain neurons (see Stock No. 005359 for example), the double mutant offspring may exhibit impa ..... | ||
| 005623 | B6.129S6-Shhtm2(cre/ERT2)Cjt/J | Repository- Live |
| This strain expresses a fusion product involving Cre recombinase and a mutant form of the human estrogen receptor ligand binding domain from the endogenous Shh locus. The mutant human estrogen receptor does not bind natural ligand at physiological concentrations but will bind the synthetic ligand, 4-hydroxytamoxifen. Restricted to the cytoplasm, the Cre/ESR1 protein can only gain access to the nuclear compartment after exposure to tamoxifen. Tamoxifen administration induces Cre recombinase expression in all cells that express the endogenous gene resulting in the deletion of the first 35 base pairs following the ATG. Homozygous mice are not viable or fertile. Heterozygous mutant mice are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. This mutant mouse strain may be useful in studies of limb patterning and development. | ||
| 006878 | B6.129S6-Taglntm2(cre)Yec/J | Repository- Live |
| Mice homozygous for this SM22alpha-CreKI allele are viable and fertile. These mice have a Cre-recombinase gene inserted into the endogenous transgelin (SM22alpha) locus. The donating investigator reports that this mutation results in a loss of function of the targeted gene. Cre recombinase activity is shown in adult smooth muscle cells (such as arteries, veins, and visceral organs) and cardiac myocytes, but activity is not observed in the same embryonic tissues. It has been the experience of The Jackson Laboratory that optimal breeding is achieved by mating heterozygous females to homozygous males as female mortality post gestation has been noted in our colony. These SM22alpha-CreKI mice may be useful for Cre-lox technology applications in studying smooth muscle and cardiac gene function, as well as cardiovascular disease. | ||
| 012565 | B6.129S7(129S4)-Ift20tm1.1Gjp/J | Repository- Live |
| These Ift20flox mice harbor loxP sites flanking exons 2-3 (encoding the first 71 codons including the start codon) of the intraflagellar transport 20 homolog (Chlamydomonas) locus. The primary cilium is a microtubule-based antenna-like structure that emanates from the surface of virtually all cells in the mammalian body. The primary cilium functions as a sensory organelle (mechano-, chemo-, photo-receptor) that receives signals from other cells/the environment, and transmits these signals to the nucleus to elicit a cellular response. Most types of eukaryotic cilia and flagella are assembled and maintained by the process of intraflagellar transport (IFT). During IFT, large protein complexes (IFT particles) are transported along the ciliary microtubules under the ciliary membrane. IFT particle proteins organize into at least three distinct complexes called complex A, complex B and the Golgi IFT complex. The unique role of Ift20 in both complex B as well as the Golgi IFT ..... For more information please see the full phenotype on the strain data sheet | ||
| 008681 | B6.129S7-Atoh1tm3Hzo/J | Repository- Live |
| These mice possess loxP sites on either side of the coding region of the targeted gene. Mice that are homozygous for this floxed allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When crossed with a Cre recombinase-expressing strain, this strain is useful in eliminating tissue-specific expression of the gene. This strain may be useful in further elucidating the role of this gene in cell fate commitment. | ||
| 008039 | B6.129S7-Gja1tm1Dlg/J | Repository- Live |
| Mice homozygous for this Cx43flox conditional allele are viable and fertile, with loxP sites flanking exon 2 of the targeted gene. Presence of the loxP sites has no reported affect on expression of the targeted gene. When bred to mice that express Cre recombinase, the resulting offspring will have exon 2 deleted in the cre-expressing tissue(s). These Cx43flox mutant mice may be useful in generating conditional mutations for studying the role of connexin and gap junctions in various tissues and systems, including the cardiovascular system. | ||
| 008818 | B6.129S7-Itga3tm1Rdav/J | Repository- Live |
| Mice homozygous for this f(α3) conditional allele are viable and fertile, with loxP sites flanking exons 11-18 of the Itga3 (integrin alpha 3 (or alpha3-integrin (α3-integrin)) gene. When bred to mice that express Cre recombinase, the resulting offspring will have the floxed region deleted in the cre-expressing tissue(s): such deletion leads to a non-sense mutation from direct splicing of exon 10 to exon 19 and results in a truncated peptide that is predicted to be missing more than half of the wild-type sequence, including those that encode the transmembrane and the cytoplasmic domains. These f(α3) mutant mice may be useful in generating conditional mutations for studying the role of Itga3 transmembrane cell adhesion receptors in neuronal functions in the developing and adult central nervous system, including synaptic plasticity and memory formation.
When bred to a strain expressing Cre recombinase in the hippocampal CA1 pyramidal cells ..... | ||
| 013106 | B6.129S7-Sox9tm2Crm/J | Repository- Live |
| These Sox9flox mutant mice possess a loxP site upstream of exon 2, a neomycin resistance (neo) cassette followed by another loxP site downstream of exon 3 of the SRY-box containing gene 9 gene, Sox9. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When these mutant mice are bred to mice that express Cre recombinase, the resulting offspring will have exons 2-3 deleted in the cre-expressing tissue, resulting in inactivation of Sox9 gene function. Breeding these Sox9flox mice to strains that express Cre recombinase ubiquitously results in severe bone defects and perilethality. This strain may be useful for studying cell fate determination including endochondral bone formation, limb development and patterning, joint formation, and hair and stem cell differentiation | ||
| 007579 | B6.129X1(Cg)-Fgfr2tm1Dor/J | Repository- Live |
| Mice homozygous for this Fgfr2flox allele possess loxP sites flanking exons 8-10 of the targeted gene and are viable and fertile. When these mutant mice are bred to mice that express Cre recombinase, resulting offspring will have sequences encoding the alternatively spliced Ig domain IIIb, as well as the IIIc and TM domains, deleted in the cre-expressing tissue(s). These Fgfr2-flox mutant mice may be useful in generating conditional mutations to study the role of fibroblast growth factor receptors in vertebrate development; including early embryogenesis, regional specification of the brain, limb morphogenesis, and normal bone, craniofacial, and lens development.
For example, when crossed to a strain expressing Cre recombinase in the central nervous system, especially astrocytes (see Stock No. 004600), this mutant mouse strain may be useful in studies of astroglial migration. When crossed to ..... | ||
| 012839 | B6.129X1(Cg)-Tnfrsf4tm2(cre)Nik/J | Repository- Live |
| In Ox40-cre mice, the targeted mutation inserts an internal ribosome entry site (IRES)-Cre recombinase into exon 3 of the tumor necrosis factor receptor superfamily, member 4 (Tnfrsf4 or Ox40) locus, abolishing gene function. Homozygous mice are viable, fertile, and normal in size. Cre recombinase expression is observed when Ox40 is induced during T cell activation. Ox40-cre induction is strong in activated CD4+ T cells (approximately 70% of memory CD4+ T cells have undergone Ox40-cre-mediated recombination in these mice). It is weaker and variable in activated CD8+ T cells. Regulatory CD4+ T cells constitutively express OX40 and thus ~90% of them have undergone Cre recombination in Ox40-cre mice. A minority (~15%) of the thymic precursors of naive CD4+ T cells express sufficient Ox40-cre to undergo Cre recombination. Ox40-cre is also expressed in the male (but not female) germline and this must be considered carefully when establishing breeding schemes. These mi ..... For more information please see the full phenotype on the strain data sheet | ||
| 006148 | B6.129X1-Gt(ROSA)26Sortm1(EYFP)Cos/J | Repository- Live |
| Mice that are homozygous for the R26-stop-EYFP mutant allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. These mice contain an Enhanced Yellow Fluorescent Protein gene (EYFP) inserted into the Gt(ROSA)26Sor locus. Expression of EYFP is blocked by an upstream loxP-flanked STOP sequence. When bred to mice with a cre recombinase gene under the control of a promoter of interest, the STOP sequence of the targeted gene is deleted in the tissue of interest, and EYFP expression is observed. These mutant mice may be useful in monitoring the Cre expression in living tissues, and tracing the lineage of such cells in embryos, young, and adult mice at desired time points.
These R26-stop-EYFP have also been used as a fluorescent reporter by the Allen Institute for Brain Science. For their characterization information, see images at the Allen Institute for Brain Science website (> ..... | ||
| 013181 | B6.129X1-H2-Ab1tm1Koni/J | Repository- Live |
| These iabneo floxed mutant mice possess a loxP-flanked neomycin resistance (neo) cassette upstream of the exon 1, and a single loxP site downstream of exon 1 of the histocompatibility 2, class II (MHC-II) antigen, beta 1 (H2-Ab1) locus. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When these mutant mice are bred to mice that express Cre recombinase, some of the resulting offspring will have exon 1 deleted in cre-expressing tissues. When bred with mice expressing Cre-recombinase driven by a cd19 promoter, iab deficiency results in the loss of MHC-II from the surface most B cells. This results in severely impaired T cell-dependent primary B cell antibody response upon immunization while exhibiting delayed kinetics in B cell germinal centers and memory B cell development. When bred with mice expressing Cre-recombinase driven by endoth ..... For more information please see the full phenotype on the strain data sheet | ||
| 007181 | B6.129X1-Notch1tm2Rko/GridJ | Repository- Live |
| Mice homozygous for this "floxed" Notch1 allele (fN1) are viable and fertile. These mice possess loxP sites on either side of exon 1 of the targeted gene. When bred to mice with a Cre recombinase gene, exon 1 of the targeted gene is deleted in the cre expressing tissue(s). These conditional knockout mice may be useful in generating tissue-specific mutants for studying the development of a wide range of tissues: for example, when crossed to a strain expressing Cre recombinase primarily in the nervous system (see Stock No. 003771), this mutant strain may be useful in studies of apoptosis in neural development.
When crossed to a strain expressing a differential Cre mediated reporter protein labeling: Notch1 signaling in actively cycling stem/progenitor cells (see Stock No. 006953), this mutant strain may be useful in studies of loss of Notch1 heterozyg ..... | ||
| 008712 | B6.129X1-Twist2tm1.1(cre)Dor/J | Repository- Live |
| Dermo1-cre (Twist2-cre) mutant mice harbor a Cre recombinase "knock-in" allele that also abolishes endogenous Twist2 gene function. Heterozygotes are viable and fertile, while homozygotes (twist-2-/-) die a few days after birth. Under control of the upstream promoter/enhancer elements, cre expression is observed in a pattern consistent with the wildtype gene; Cre recombinase activity is reported in mesoderm as early as embryonic day 9.5, in mesodermal tissues such as branchial arches and somites, and in condensed mesenchyme-derived chondrocytes and osteoblasts. When heterozygotes are bred with mice containing a loxP-flanked sequence of interest, Cre-mediated recombination will result in deletion of the floxed sequences in Dermo1-expressing tissues of the offspring. Homozygous mice exhibit elevated expression of proinflammatory cytokines resulting in perinatal death from cachexia (wasting), as well as progressive growth retardation, impaired movement, th ..... For more information please see the full phenotype on the strain data sheet | ||
| 006054 | B6.C-Tg(CMV-cre)1Cgn/J | Repository- Live |
| In this transgenic strain, deletion of loxP-flanked genes occurs in all tissues, including germ cells. The cre gene in this strain is under the transcriptional control of a human cytomegalovirus minimal promoter and is likely to be expressed before implantation during early embryogenesis. It also appears that the cre gene is X-linked since transgene transmission through males is restricted to female offspring. In an attempt to offer alleles on well-characterized or multiple genetic backgrounds, alleles are frequently moved to a genetic background different from that on which an allele was first characterized. This is the case for the strain above. It should be noted that the phenotype could vary from that originally described. We will modify the strain description if necessary as published results become available. | ||
| 006366 | B6.Cg-Dicer1tm1Bdh/J | Repository- Live |
| These mice contain loxP sites on either side of exon 23. Homozygous mice are viable and fertile with no gross phenotypic or behavioral abnormalities. Expression of the targeted allele is indistinguishable from wild-type despite the frt-flanked neomycin cassette. Cre-mediated recombination (resulting in deletion of exon 23) in the germline leads to developmental arrest at embryonic day 7.5 (E7.5). Tissue specific deletion has been shown to result in loss of microRNA (miRNA) processing. Mutant mice can be used to generate cell/tissue-specific deletions of the endogenous gene for applications in embryonic development, translation, protein processing and miRNA/siRNA regulation of gene expression. For example, when crossed to a strain expressing Cre recombinase in mesenchyme (see Stock No. 005584), this mutant mouse strain may be useful in studies of limb morphogenesis. When bred to a strain expressing Cre recombi ..... | ||
| 005670 | B6.Cg-Gt(ROSA)26Sortm1(rtTA,EGFP)Nagy/J | Repository- Live |
| Homozygous mutant mice are viable, fertile, normal in size and do not display any behavioral abnormalities. When these gene targeted mice are bred to transgenic strains expressing Cre recombinase, functional rtTA and EGFP activity is observed in the double mutant offspring in the tissues that express cre. These double mutant mice may be bred to transgenic strains carrying genes of interest under the regulation of tetracycline responsive elements (TRE; tetO) to generate triple mutant mice in which the tissue specificity of the cre-transgenic line and doxycycline inducibility of the rtTA/TRE-controlled transgenes can be combined to regulate expression of the target gene. In an attempt to offer alleles on well-characterized or multiple genetic backgrounds, alleles are frequently moved to a genetic background different from that on which an allele was first characterized. It should be noted that the phenotype could vary from that originally described. We will modify th ..... | ||
| 007914 | B6.Cg-Gt(ROSA)26Sortm14(CAG-tdTomato)Hze/J | Repository- Live |
| Ai14 mice hemizygous for this Rosa-CAG-LSL-tdTomato-WPRE::deltaNeo conditional allele are viable and fertile. A loxP-flanked STOP cassette prevents transcription of the downstream red fluorescent protein variant (tdTomato). When bred to mice that express Cre recombinase, the resulting offspring will have the STOP cassette deleted in the cre-expressing tissue(s); resulting in expression of tdTomato. Because this CAG promoter driven reporter construct was targeted for insertion into the Gt(ROSA)26Sor locus, tdTomato expression is determined by which tissue(s) express Cre recombinase. Ai14 mice are not expected to express tdTomato prior to introduction of Cre recombinase and tdTomato expression following exposure to cre is expected to be detectable by fluorescence and mRNA (in situ hybridization). These Ai14 mice are useful as a Cre reporter strain; expressing the red fluorescent protein variant, tdTomato, following Cre-mediated recombination.
For cha ..... | ||
| 012567 | B6.Cg-Gt(ROSA)26Sortm27.1(CAG-COP4*H134R/tdTomato)Hze/J | Repository- Live |
| Ai27D (or Ai27Δneo) mice heterozygous for the Rosa-CAG-LSL-hChR2(H134R)-tdTomato-WPRE conditional allele are viable and fertile. A loxP-flanked STOP cassette prevents transcription of the downstream hChR2(H134R)-tdTomato fusion gene. Because this CAG promoter driven reporter construct was targeted for insertion into the Gt(ROSA)26Sor locus, hChR2(H134R)-tdTomato expression is determined by which tissue(s) express Cre recombinase. When bred to mice that express Cre recombinase, the resulting offspring will have the STOP cassette deleted in the cre-expressing tissues; resulting in expression of the hChR2(H134R)-tdTomato fusion protein. The donating investigator reports that Ai27D mice do not express hChR2(H134R)-tdTomato prior to introduction of Cre recombinase. Fusion protein expression following exposure to cre can be detected by tdTomato fluorescence and mRNA (in situ hybridization) (and presumably by antibody staining (immunohistochemistry); althoug ..... For more information please see the full phenotype on the strain data sheet | ||
| 007903 | B6.Cg-Gt(ROSA)26Sortm3(CAG-EYFP)Hze/J | Repository- Live |
| Ai3 mice hemizygous for this Rosa-CAG-LSL-EYFP-WPRE conditional allele are viable and fertile. A loxP-flanked STOP cassette prevents transcription of the downstream enhanced yellow fluorescent protein (EYFP). When bred to mice that express Cre recombinase, the resulting offspring will have the STOP cassette deleted in the cre-expressing tissue(s); resulting in expression of EYFP. Because this CAG promoter driven reporter construct was targeted for insertion into the Gt(ROSA)26Sor locus, EYFP expression is determined by which tissue(s) express Cre recombinase. The donating investigator reports that Ai3 mice do not express EYFP prior to introduction of Cre recombinase and EYFP expression following exposure to cre can be detected by fluorescence, mRNA (in situ hybridization) and antibody staining (immunohistochemistry). Of note, the FRT sites flanking the mutation allow for additional targeted replacement of the reporter sequences through Flp-medi ..... For more information please see the full phenotype on the strain data sheet | ||
| 007906 | B6.Cg-Gt(ROSA)26Sortm6(CAG-ZsGreen1)Hze/J | Repository- Live |
| Ai6 mice hemizygous for this Rosa-CAG-LSL-ZsGreen1-WPRE conditional allele are viable and fertile. A loxP-flanked STOP cassette prevents transcription of the downstream enhanced green fluorescent protein (ZsGreen1). When bred to mice that express Cre recombinase, the resulting offspring will have the STOP cassette deleted in the cre-expressing tissue(s); resulting in expression of ZsGreen1. Because this CAG promoter driven reporter construct was targeted for insertion into the Gt(ROSA)26Sor locus, ZsGreen1 expression is determined by which tissue(s) express Cre recombinase. The donating investigator reports that Ai6 mice do not express ZsGreen1 prior to introduction of Cre recombinase and ZsGreen1 expression following exposure to cre can be detected by fluorescence and mRNA (in situ hybridization). Bright fluorescence is observed mainly in cell bodies. Of note, the FRT sites flanking the mutation allow for additional targeted replacement of the report ..... For more information please see the full phenotype on the strain data sheet | ||
| 007909 | B6.Cg-Gt(ROSA)26Sortm9(CAG-tdTomato)Hze/J | Repository- Live |
| Ai9 mice hemizygous for this Rosa-CAG-LSL-tdTomato-WPRE conditional allele are viable and fertile. A loxP-flanked STOP cassette prevents transcription of the downstream red fluorescent protein variant (tdTomato). When bred to mice that express Cre recombinase, the resulting offspring will have the STOP cassette deleted in the cre-expressing tissue(s); resulting in expression of tdTomato. Because this CAG promoter driven reporter construct was targeted for insertion into the Gt(ROSA)26Sor locus, tdTomato expression is determined by which tissue(s) express Cre recombinase. The donating investigator reports that Ai9 mice do not express tdTomato prior to introduction of Cre recombinase and tdTomato expression following exposure to cre can be detected by fluorescence and mRNA (in situ hybridization). Of note, the FRT sites flanking the mutation allow for additional targeted replacement of the reporter sequences through Flp-mediated recombination if ..... For more information please see the full phenotype on the strain data sheet | ||
| 016231 | B6.Cg-Msh2tm2.1Rak/J | Repository- Live |
| The Msh2LoxP allele has loxP sites flanking exon 12 of the mutS homolog 2 (E. coli) [Msh2] gene. Homozygous Msh2LoxP mice are viable and fertile with no observed abnormalities. When bred to mice that express Cre recombinase, the resulting offspring will have the sequences encoding a portion of the essential ATPase domain of MSH2 protein deleted in the cre-expressing tissue(s). These Msh2LoxP mice may be useful in generating tissue-specific MSH2 deletions for studying DNA mismatch repair (single-nucleotide and insertion/deletion mismatches), as well as tumor development.
For example, when Msh2LoxP mice are bred to a strain expressing Cre recombinase in embryonic tissues (EIIA-Cre; see Stock Nos. 003314 or 003724), the resulting mice with pan deletion of MSH2 exhibit high inciden ..... | ||
| 006492 | B6.Cg-Pdgfratm8Sor/EiJ | Repository- Live |
| These mice possess loxP sites on either side of exon 1 and exon 4 of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When used in conjunction with a Cre recombinase-expressing strain, this strain is useful in generating tissue-specific mutants of the floxed allele.
For example, when bred to a strain expressing Cre recombinase in midbrain/dorsal spinal cord (see Stock No. 007807 or 009107 for example), this mutant mouse strain may be useful in studies of cranial and cardiac neural crest cells. | ||
| 012358 | B6.Cg-Pvalbtm1.1(cre)Aibs/J | Repository- Live |
| Mice heterozygous for the Pvalb-2A-Cre allele are viable and fertile, with a viral 2A oligopeptide that mediates ribosomal skipping and a Cre recombinase gene inserted immediately downstream of the parvalbumin translational STOP codon. As such, Pvalb-2A-Cre mice have both endogenous gene and Cre recombinase expression directed to Pvalb-expressing cells by the endogenous promoter/enhancer elements of the parvalbumin locus. When Pvalb-2A-Cre mice are bred with mice containing loxP-flanked sequences, Cre-mediated recombination will result in deletion of the floxed sequences in the Pvalb-expressing cells in the offspring. Specifically, the donating investigator reports cre activity in scattered interneuron populations in the cortex and hippocampus, as well as neuronal populations in other brain regions, resembling the Pvalb expression pattern. Additional reporter gene expression is seen in cortical layer 5 neurons, which are unlikely to be interneurons. ..... For more information please see the full phenotype on the strain data sheet | ||
| 013188 | B6.Cg-Rptortm1.1Dmsa/J | Repository- Live |
| These Rptorflox/flox mutant mice possess loxP sites flanking exon 6 of the regulatory associated protein of mTOR (Mechanistic target of rapamycin), complex 1 , Rptor, targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When these mutant mice are bred to C57BL6-Tg(AlbCre)21Mgn (Stock No. 003574) mice, which direct liver-specific expression of Cre, mice exhibit a decrease in liver size yet produce ketones for hours after feeding. When bred to mice that express tissue-specific Cre recombinase, resulting offspring will have exon 6 deleted in the cre-expressing tissues. This strain may be useful for studying mTOR-dependent regulation of ketogenesis and other cellular processes in response to feeding and fasting. | ||
| 005622 | B6.Cg-Shhtm1(EGFP/cre)Cjt/J | Repository- Live |
| This strain expresses a fusion product involving Enhanced Green Fluorescent Protein (EGFP) and Cre recombinase from the endogenous Shh locus. EGFP and cre expression are consistent with the endogenous gene. Fluorescence is detected in the distal posterior region of the limb buds of embryos aged embryonic day 10 to 12 and colocalizes with the endogenous gene product (mRNA).
The donating investigator reports that it is not uncommon for a mosaic expression pattern to be exhibited when the allele is inherited through the female germline. It is recommended that this allele be passed through the male germline when conducting experiments involving cre-induced recombination. Mice homozygous for the mutation develop a limited limb skeleton and lack digit 2. Homozygous mice are not viable or fertile. Heterozygous mutant mice are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities.
This mutant mouse strain may be useful in studie ..... For more information please see the full phenotype on the strain data sheet | ||
| 006149 | B6.Cg-Tg(ACTA1-cre)79Jme/J | Repository- Live |
| Mice hemizygous for this HSA-Cre79 transgene are viable, fertile, normal in size, and do not display any gross physical or behavioral abnormalities. These HSA-Cre79 transgenic mice have the cre recombinase gene driven by the human alpha-skeletal actin (HSA or ACTA1) promoter. Cre activity is restricted to adult striated muscle fibers and embryonic striated muscle cells of the somites and heart. When bred with mice containing a loxP-flanked sequence of interest, Cre-mediated recombination will result in striated muscle-specific deletion of the flanked genome. Specifically, these HSA-Cre79 (or ACTA1-Cre) transgenic mice were originally used to breed with mice heterozygous for a deletion of exon 7 and a loxP-flanked exon 7 mutation on homologous chromosomes of the Smn1 gene (see Stock No. 006138 or Stock No. 006146). The resulting offspring ( ..... For more information please see the full phenotype on the strain data sheet | ||
| 003574 | B6.Cg-Tg(Alb-cre)21Mgn/J | Repository- Live |
| This strain may be maintained as a hemizygote or homozygote and lacks any phenotype related to the transgenic allele. It has been well characterized and shown to be very efficient for performing liver-specific gene knockouts using Cre/loxP system. This line has been shown to be nearly 100% efficient in achieving liver-specific recombination when crossed with at least 5 different floxed alleles.
View cre expression characterization. | ||
| 006881 | B6.Cg-Tg(Aqp2-cre)1Dek/J | Repository- Live |
| Mice hemizygous for this AQP2-Cre transgene are viable and fertile. Transgenic cre activity, directed by the mouse aquaporin 2 promoter, is observed in kidney cells (collecting duct) and testes (sperm). When bred with mice containing a loxP-flanked sequence of interest, cre-mediated recombination will result in deletion of the flanked sequence. In such breedings, maternal inheritance of the transgene is recommended for kidney-specific recombinase activity as males express cre in sperm as well as kidney tissues. These AQP2-Cre mice may be used to generate conditional mutations in the renal collecting duct for studying nephrology, physiology, metabolism, or type II diabetes. In addition, cre expression in sperm may be useful in generating conditional mutations in multiple or all tissues in the resulting offspring. | ||
| 011104 | B6.Cg-Tg(Atoh1-cre)1Bfri/J | Repository- Live |
| In this strain, mouse Atoh1 (atonal homolog 1 (Drosophila)) regulatory sequences drives cre expression primarily in precursors of granule cell neurons of the cerebellum and dorsal hindbrain/spinal cord in the dp1 domain. When bred with mice containing sequences flanked by similarly oriented loxP sites, flanked sequences will be deleted in the Cre-expressing tissues of the offspring. | ||
| 008705 | B6.Cg-Tg(CAG-DsRed,-EGFP)5Gae/J | Repository- Live |
| Hemizygous IRG transgenic mice are viable and fertile, with widespread expression of a loxP-flanked optimized red fluorescent protein variant (DsRed-Express) directed to embryonic and adult tissues by the CAG promoter prior to exposure to Cre recombinase. When bred to cre-expressing mice, the resulting offspring have the DsRed-Express cassette deleted in the cre-expressing tissue(s), allowing expression of the enhanced green fluorescent protein (EGFP) cassette located just downstream. These IRG transgenic mice are a double-fluorescent, Cre-reporter strain; with widespread expression of red fluorescence prior to Cre recombinase exposure, and green fluorescence following cre-mediated recombination in a pattern determined by cre expression, and should provide a versatile tool for analyzing complex cellular relationships in a wide variety of tissues. For example, when using IRG transgenic mice along with Nestin-Cre mice (see Stock No. For more information please see the full phenotype on the strain data sheet | ||
| 004682 | B6.Cg-Tg(CAG-cre/Esr1*)5Amc/J | Repository- Live |
| These transgenic mice have a tamoxifen-inducible cre-mediated recombination system driven by the chicken beta actin promoter/enhancer coupled with the cytomegalovirus (CMV) immediate-early enhancer. The transgene insert contains a fusion product involving Cre recombinase and a mutant form of the mouse estrogen receptor ligand binding domain. The mutant mouse estrogen receptor does not bind natural ligand at physiological concentrations but will bind the synthetic ligand, 4-hydroxytamoxifen. Restricted to the cytoplasm, the cre/Esr1 protein can only gain access to the nuclear compartment after exposure to tamoxifen. When crossed with a strain containing a loxP site flanked sequence of interest, the offspring are useful for generating tamoxifen-induced, Cre-mediated targeted deletions. Tamoxifen administration will also induce Cre recombination in developing embryos of treated mothers and in cultured cells derived from transgenic mice. Homozygous mice are not viable or fertile. Heterozyg ..... For more information please see the full phenotype on the strain data sheet | ||
| 008520 | B6.Cg-Tg(CD2-cre)4Kio/J | Repository- Live |
| Mice hemizygous for this hCD2-iCre transgene are viable and fertile, with the human CD2 promoter and locus control region (LCR) directing expression of an optimized variant of Cre recombinase (iCre) to T cells and B cells (all committed B cell and T cell progenitors). Using crosses to a reporter strain, variegated germ line (testis) and a small monocyte-enriched population expression is also reported. When bred with mice containing a loxP-flanked sequence of interest, Cre-mediated recombination will result in deletion of the floxed sequence(s) in the offspring. These hCD2-iCre transgenic mice may be useful for generating conditional mutations in T cells and B cells. Of note, this hCD2-iCre strain (Stock No. 008520) allows reliable deletion/gene targeting to be focused to T cells and B cells, whereas the Vav-iCre strain (Stock No. 008610) allows targeting throughout the entire hematopoietic compartment. IMPOR ..... | ||
| 009350 | B6.Cg-Tg(CDX2-cre)101Erf/J | Repository- Live |
| Mice hemizygous for the CDX2P9.5-NLSCre transgene are viable and fertile, with a 9.5 kb human caudal type homeo box 2 (CDX2) promoter/enhancer sequence directing expression of a nuclear-localized Cre recombinase predominantly to colonic epithelium during late gestation and in adult tissues. Specifically, Cre recombinase expression is observed in epithelium from the distal ileum and cecum, and throughout the colon from the crypt base to the luminal surface. Cre recombinase expression is also observed throughout the caudal region of the embryo during early development. When these transgenic mice are bred with mice containing a loxP-flanked sequence, Cre-mediated recombination is expected to result in deletion of the floxed sequences in the Cre recombinase-expressing tissues of the offspring. | ||
| 016882 | B6.Cg-Tg(CMV-CASP3)14Edge/J | Repository- Live |
| Mos-iCsp3 transgenic mice have a CMV promoter directing expression of a floxed-lacZ-STOP cassette followed by two tandem FK506-binding sites (Fvs) and a downstream human Caspase 3 (Casp3) gene. Hemizygous Mos-iCsp3 mice are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. Caspase 3 is a member of the cysteine-aspartic acid protease family of enzymes which are integral to apoptosis pathways. Inactive until cleaved by an initiator enzyme, Caspase 3 is processed at conserved aspartic residues and is activated by the formation of dimers. In this transgenic strain, a STOP cassette is present, flanked by a loxH site and a loxP site, preventing inducible Caspase 3 expression and allowing for widespread lacZ staining. LacZ staining in founder line 14 is seen in the eye, kidney, pancreas, skin, thymus, and portions of the brain. The presence of both a loxH site and a loxP site causes reduc ..... For more information please see the full phenotype on the strain data sheet | ||
| 016908 | B6.Cg-Tg(CMV-CASP3)17Edge/J | Repository- Live |
| Mos-iCsp3 transgenic mice have a CMV promoter directing expression of a floxed-lacZ-STOP cassette followed by two tandem FK506-binding sites (Fvs) and a downstream human Caspase 3 (Casp3) gene. Hemizygous Mos-iCsp3 mice are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. Caspase 3 is a member of the cysteine-aspartic acid protease family of enzymes which are integral to apoptosis pathways. Inactive until cleaved by an initiator enzyme, Caspase 3 is processed at conserved aspartic residues and is activated by the formation of dimers. In this transgenic strain, a STOP cassette is present, flanked by a loxH site and a loxP site, preventing inducible Caspase 3 expression and allowing for widespread lacZ staining. LacZ staining in founder line 17 is seen in the spinal cord, muscle, pancreas, skin, and portions of the brain and skull. The presence of both a loxH site and a loxP site cau ..... For more information please see the full phenotype on the strain data sheet | ||
| 005359 | B6.Cg-Tg(Camk2a-cre)T29-1Stl/J | Repository- Live |
| Mice homozygous for the transgenic insert are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. These transgenic mice express the Cre recombinase under the control of the mouse calcium/calmodulin-dependent protein kinase II alpha promoter. Cre recombinase expression is detected in the forebrain, specifically to the CA1 pyramidal cell layer in the hippocampus. When crossed with a strain containing loxP site flanked sequence of interest, Cre-mediated recombination occurs in the pyramidal cell layer. | ||
| 012237 | B6.Cg-Tg(Cdh16-cre)91Igr/J | Repository- Live |
| Hemizygous and homozygous mice are viable, fertile, normal in size, and do not display any gross physical or behavioral abnormalities. These Ksp1.3/Cre transgenic mice express Cre recombinase under the control of the mouse cadherin 16 (Cdh16 or Ksp-cadherin) promoter. Cre recombinase expression follows expression of the endogenous gene and is detected in the epithelial cells of developing nephrons, ureteric bud, mesonephric tubules, Wolffian duct, and Mullerian duct. In the adult mouse expression is limited to the renal tubules especially the collecting ducts, loops of Henle and distal tubules. When crossed with a strain containing loxP site flanked sequence, Cre-mediated recombination results in deletion of the flanked sequence in the offspring. This mutant mouse strain may be useful in kidney-specific gene targeting and cell lineage studies. | ||
| 006137 | B6.Cg-Tg(Cdh5-cre)7Mlia/J | Repository- Live |
| Hemizygotes are viable, fertile, normal in size, and do not display any gross physical or behavioral abnormalities. In the differentiated endothelium transgene expression is observed as early as E7.5 and progresses to almost full penetrance by E14.5. In adult mice, uniform cre expression is observed in the endothelium of developing and quiescent vessels of all organs examined, as well as within a subset of hematopoietic cells. When bred with any mouse containing a loxP-flanked sequence of interest, Cre-mediated recombination will result in deletion of the flanked genome. These mice may be useful in studies of the cardiovascular system, including angiogenesis, and endothelial and hematopoietic cell lineages. | ||
| 016241 | B6.Cg-Tg(Col1a1-cre/ERT2)1Crm/J | Repository- Live |
| These transgenic mice express a tamoxifen inducible Cre recombinase driven by the 2.3-kb mouse Col1a1, collagen, type I, alpha 1, promoter. The transgene insert contains a fusion product involving Cre recombinase and a mutant form of the mouse estrogen receptor ligand binding domain. The mutant mouse estrogen receptor does not bind natural ligand at physiological concentrations but will bind the synthetic ligand, 4-hydroxytamoxifen. Restricted to the cytoplasm, the Cre/Esr1 protein can only gain access to the nuclear compartment after exposure to tamoxifen. When crossed with a strain containing a loxP site flanked sequence of interest, the offspring are useful for generating tamoxifen-induced, Cre-mediated targeted deletions. Tamoxifen administration induces Cre recombination in the osteoblasts of most bones and in odontoblasts of teeth in embryonic and postnatal mice. Inducible Cre recombinase activity is detected in the osteoblasts of the long bones of the limbs a ..... For more information please see the full phenotype on the strain data sheet | ||
| 016237 | B6.Cg-Tg(Col1a2-cre/ERT)7Cpd/J | Repository- Live |
| These transgenic mice express a tamoxifen-inducible Cre recombinase driven by the mouse Col1a2, collagen, type I, alpha 2, promoter. The transgene insert contains a fusion product involving Cre recombinase and a mutant form of the mouse estrogen receptor ligand binding domain. The mutant mouse estrogen receptor does not bind natural ligand at physiological concentrations but will bind the synthetic ligand, 4-hydroxytamoxifen. Restricted to the cytoplasm, the Cre/Esr1 protein can only gain access to the nuclear compartment after exposure to tamoxifen. When crossed with a strain containing a loxP site flanked sequence, the offspring are useful for generating tamoxifen-induced, Cre-mediated targeted deletions of the flanked sequence. Tamoxifen administration in double mutant mice, carrying this transgene and a beta-galactosidase reporter, induces Cre recombination in dermal and visceral fibroblasts. Transgenic embryos (aged 13.5 embryonic days) exhibit inducible Cre r ..... For more information please see the full phenotype on the strain data sheet | ||
| 006368 | B6.Cg-Tg(Cr2-cre)3Cgn/J | Repository- Live |
| Mice homozygous for this "CD21-cre3a" transgene are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. These transgenic mice express Cre recombinase under the control of the mouse complement receptor 2 (CR2) promoter. Cre recombinase expression is detected specifically in mature transitional B cells. When CD21-cre3a mice were crossed to a lacZ-expressing Cre reporter strain, Cre recombinase activity is detected in 65-70% of mature B cells (as determined by FACS analysis of bone marrow cells). When crossed with a strain containing loxP site flanked sequence of interest, Cre-mediated recombination results in deletion of the targeted gene in mature B lymphocytes and follicular dendritic cells. This strain represents an effective tool for generating tissue specific-targeted mutants that would be useful to study B lymphocyte development. | ||
| 008538 | B6.Cg-Tg(Cspg4-cre/Esr1*)BAkik/J | Repository- Live |
| Mice hemizygous for the NG2CreERTM BAC transgene are viable and fertile, with the mouse NG2 (Cspg4) promoter/enhancer directing expression of a tamoxifen-inducible Cre recombinase (CreERTM). This CreERTM fusion protein is estrogen insensitive, and is only active when it binds the estrogen analog 4-hydroxytamoxifen (OHT) or tamoxifen.
When these NG2CreERTM BAC transgenic mice are bred with mice containing loxP-flanked sequences, tamoxifen-inducible Cre-mediated recombination is expected to result in deletion of the floxed sequences in the Cre recombinase-expressing tissues of the offspring. No background cre activity is reported in the absence of tamoxifen. Following tamoxifen administration, the majority of Cre recombinase activity is reported in NG2-expressing glia (polydendrocytes, oligodendrocyte progenitor cells). The donating investigator specifically reports that tamoxifen-induced Cre recombinase activity is observed throu ..... For more information please see the full phenotype on the strain data sheet | ||
| 005069 | B6.Cg-Tg(Fabp4-cre)1Rev/J | Repository- Live |
| These transgenic mice express Cre recombinase under the control of the mouse Fabp4, fatty acid binding protein 4, adipocyte, promoter. Cre recombinase expression is detected in brown and white gonadal and subcutaneous adipose tissue. No expression is detected in skeletal muscle. When crossed with a strain containing a loxP site flanked sequence of interest, Cre-mediated recombination results in deletion of the targeted gene specifically in adipose tissue. Mice that are homozygous for the targeted mutation are viable. This strain represents an effective tool for generating tissue-specific targeted mutants.
View cre expression characterization. | ||
| 012886 | B6.Cg-Tg(Gfap-cre)73.12Mvs/J | Repository- Live |
| Mice hemizygous for the Gfap-cre transgene are viable and fertile, with a mouse glial fibrillary acidic protein (mGfap) promoter sequence directing expression of a Cre-recombinase. Specifically, Cre recombinase activity (as defined by expression of loxP-STOP flanked reporter gene) is targeted to most astrocytes throughout healthy brain and spinal cord tissues and to essentially all astrocytes following Central Nervous System (CNS) injury. Cre recombinase activity is observed in essentially all adult neural stem cells and their progeny in the hippocampal dentate gyrus and subventricular zone. In addition, some hippocampal pyramidal neurons and cerebellar granule neurons (less than 5%) and scattered neurons in the midbrain (less than 0.5%) also exhibit activity due to radial cell progenitors that begin to express Gfap at later developmental stages in post-natal mice when the last-born neurons are generated. Mice hemizygous for the Gfap-cre transgene are viable and fertile.
..... For more information please see the full phenotype on the strain data sheet | ||
| 012887 | B6.Cg-Tg(Gfap-cre)77.6Mvs/J | Repository- Live |
| Mice hemizygous for the Gfap-cre transgene are viable and fertile, with a mouse glial fibrillary acidic protein (mGfap) promoter sequence directing expression of a Cre-recombinase. Specifically, Cre recombinase activity (as defined by expression of loxP-STOP flanked reporter gene) is targeted to most astrocytes throughout the healthy brain and spinal cord and to essentially all astrocytes after Central Nervous System (CNS) injury. Cre recombinase activity is also targeted to a subpopulation of the adult stems in the subventricular zone. In contrast to GFAP-Cre line 73.12 , there is no targeting of postnatal or adult neural stem cells or their progeny in the hippocampus or other brain regions in GFAP-Cre line 77.6, rendering these mice particularly useful for selective targeting of astrocytes. When these transgenic mice are bred with mice containing a loxP-flanked sequence, Cre-mediated recombination is expected to result in deletion of the floxed sequences in the Cre recombina ..... For more information please see the full phenotype on the strain data sheet | ||
| 003573 | B6.Cg-Tg(Ins2-cre)25Mgn/J | Repository- Live |
| This strain carries the "RIP-Cre" transgene construct (containing a 668 bp fragment of the rat insulin II promoter, Cre recombinase with a nuclear localization sequence, and a 2.1 kb fragment from the human growth hormone gene). Hemizygous mice carrying this transgene are phenotypically normal and overexpresss cre specifically in pancreatic beta cells. This transgene strain is used in combination with mice carrying floxed targeted mutations to create various pancreatic beta cell-specific gene knockouts using the "Cre-lox" system. Results from several different laboratories have shown that this transgenic strain is at least 85% efficient in achieving pancreatic beta cell-specific recombination. It should also be noted that the transgene in this line has been found to be expressed at a low level in the hypothalamus. In some cases this has resulted in a phenotype due to deletion of the floxed allele in this region of the brain. It has also been shown that these transgenic mice may ..... For more information please see the full phenotype on the strain data sheet | ||
| 008068 | B6.Cg-Tg(Itgax-cre)1-1Reiz/J | Repository- Live |
| Mice hemizygous for the Cd11c-cre transgene are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. These transgenic mice express Cre recombinase under the control of the mouse integrin alpha X (Cd11c) promoter. Cre-mediated recombination is detected in more than 95% of conventional CD11chigh dendritic cells both from lymphoid organs and from non-lymphoid tissues such as lung and epidermis, and in 50-80% of plasmacytoid dendritic cells. The dendritic cell compartment of transgenic mice is normal. Relatively low amounts of recombination are detected in lymphocytes (<10%), NK cells (12%), and myeloid cells (<1%). No increase of recombination frequency was observed in CD11clow- activated T cells. These Cd11c-cre transgenic mice (as well as CD11c-Cre-GFP transgenic mice (see Stock No. 007567)) are an effective tool for generating tissue-specific targeted mutant ..... For more information please see the full phenotype on the strain data sheet | ||
| 008781 | B6.Cg-Tg(Kap-cre)29066/2Sig/J | Repository- Live |
| Mice hemizygous for the transgenic insert are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. These transgenic mice express Cre recombinase (iCre, improved cre) under the control of the mouse kidney androgen regulated protein (Kap). Cre recombinase expression is detected in the proximal tubule cells of the renal cortex in male mice. Female mice do not express the transgene unless treated with androgen (testosterone). When crossed with a strain containing loxP site flanked sequence of interest, Cre-mediated recombination results in deletion of the targeted gene in the proximal tubule cells of the kidney. The Donating Investigator reports that for transgenic mice on the C57BL/6J background (both male and female), the transgene needs to be induced with exogenous androgen. The Donating Investigator recommends using a testosterone pellet implanted subcutaneously, which results in a modest level of transgene induction 10 d ..... For more information please see the full phenotype on the strain data sheet | ||
| 012837 | B6.Cg-Tg(Lck-cre)3779Nik/J | Repository- Live |
| Mice hemizygous for the Lck-cre transgene are viable, fertile, and normal in size. These mice contain a Cre-recombinase gene driven by the distal promoter of the lymphocyte protein tyrosine kinase (Lck) gene. Cre recombinase expression is delayed, and is only observed in T cells after T cell receptor α (Tcra) locus rearrangement and after the cells have reached the TCRhi stage of thymocyte development. When these transgenic mice are bred with mice containing a loxP-flanked sequence, Cre-mediated recombination results in deletion of the floxed sequences in the Cre recombinase-expressing tissues of the offspring. These mice are useful for studying the consequences of mutations induced after positive selection in the thymus. | ||
| 003802 | B6.Cg-Tg(Lck-cre)548Jxm/J | Repository- Live |
| Homozygous mice are viable and have no major defects. This strain expresses Cre recombinase in thymocytes. | ||
| 003556 | B6.Cg-Tg(Mx1-cre)1Cgn/J | Repository- Live |
| The Cre recombinase is under the control of the Mx1 promoter. This promoter is silent in healthy mice, but can be induced to high levels of transcription by administration of interferon alpha, interferon beta, or synthetic double-stranded RNA (such as poly I:C). When combined with a mutant carrying a gene that has been flanked by loxP recognition sites, the expression of Cre recombinase causes the flanked gene to be removed. This provides researchers with the capability to induce the "knockout" at any time during development. There was ~1% background recombination seen in mice not treated with interferon. The percent deletion of the targeted gene varied depending on tissue type, presumably due to the amount of interferon-responsive cells present or to the availability of interferon in each organ.
In an attempt to offer alleles on well-characterized or multiple genetic backgrounds, alleles are frequently moved to a genetic background different from that on which an ..... | ||
| 007742 | B6.Cg-Tg(Myh11-cre,-EGFP)2Mik/J | Repository- Live |
| Mice hemizygous for the smMHC/Cre/eGFP transgene (smMHCCre/eGFP) are viable and fertile, with the smooth muscle myosin heavy chain (smMHC or Myh11) promoter directing bicistronic Cre and EGFP protein expression to smooth muscle cells during development as well as in the adult mouse. Hemizygotes from founder line SMCG2 (SM2Cre/GFP) display intense EGFP fluorescence restricted to vascular and nonvascular smooth muscle, with strong concordance between cre expression and EGFP fluorescence (verifying the use of fluorescence as a marker for conditional gene recombination). When bred with mice containing a loxP-flanked sequence of interest, the resulting offspring can have Cre-mediated recombination of the flanked sequence in smooth muscle. Homozygotes are viable and fertile, with smaller litter sizes and a higher incidence of perinatal mortality. These smMHC/Cre/eGFP transgenic mice may be useful in studies utilizing "Cre-lox" technology or fluoresc ..... For more information please see the full phenotype on the strain data sheet | ||
| 008205 | B6.Cg-Tg(NPHS2-cre)295Lbh/J | Repository- Live |
| Podocin-Cre mice (mice harboring the p2.5P-Cre transgene) are viable and fertile, with expression of Cre recombinase directed to podocytes within kidney glomeruli by the human podocin (NPHS2) promoter/enhancer region. Cre-recombinase activity is reported in podocytes during late capillary loop stage of glomerular development and persists in podocytes of mature glomeruli, with no evidence for cre expression detected in other tissues examined. Embryonic Cre-recombinase activity is also reported as early as 8.5 dpc. When bred with mice containing a loxP-flanked sequence, Cre-mediated recombination will result in deletion of the sequence. These Podocin-Cre mice (mice harboring the p2.5P-Cre transgene) may be useful in generating conditional knockouts for studying the role of podocyte nephrobiology in renal disorders. | ||
| 003771 | B6.Cg-Tg(Nes-cre)1Kln/J | Repository- Live |
| These transgenic mice express Cre recombinase under the control of the rat nestin promoter and enhancer. Mice that are hemizygous for the transgenic insert are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. Initial studies utilizing a reporter strain carrying a beta galactosidase transgene whose expression is dependent on Cre-mediated recombination indicate that cre is primarily expressed in the central and peripheral nervous system with a few isolated kidney and heart cells also expressing activity. The donating investigator indicates that Cre recombinase activity is present in nervous tissue by embryonic day 11. The transgene insertion location is on Chromosome 12, as determined by FISH analysis, view pdf.
View cre expression characterization. | ||
| 010536 | B6.Cg-Tg(Pcp2-cre)3555Jdhu/J | Repository- Live |
| Hemizygous mice are viable, fertile, normal in size, and do not display any gross physical or behavioral abnormalities. These transgenic mice express Cre recombinase under the control of the mouse Purkinje cell protein (Pcp2). Cre recombinase expression is detected in Purkinje cells of the cerebellar folia and retinal bipolar cells. Expression was not found in spinal cord, heart, liver, kidney or cornea. When crossed with a strain containing loxP site flanked sequence of interest, Cre-mediated recombination results in deletion of the targeted gene in the offspring. This mutant mouse strain may be useful in studies of the nervous system, particularly Purkinje cells and retinal bipolar cells. | ||
| 005975 | B6.Cg-Tg(Plp1-cre/ERT)3Pop/J | Repository- Live |
| These transgenic mice have a tamoxifen inducible Cre-mediated recombination system driven by the mouse Plp1, proteolipid protein (myelin) 1 promoter. The transgene insert contains a fusion product involving Cre recombinase and a mutant form of the mouse estrogen receptor ligand binding domain. The mutant mouse estrogen receptor does not bind natural ligand at physiological concentrations but will bind the synthetic ligand, 4-hydroxytamoxifen. Restricted to the cytoplasm, the Cre/Esr1 protein can only gain access to the nuclear compartment after exposure to tamoxifen. When crossed with a strain containing a loxP site flanked sequence of interest, the offspring are useful for generating tamoxifen-induced, Cre-mediated targeted deletions. Tamoxifen administration allows for ablation of predetermined genes in oligodendrocytes and Schwann cells, and will also induce Cre recombination in developing embryos of treated mothers and in cultured cells derived from transgenic mice. M ..... For more information please see the full phenotype on the strain data sheet | ||
| 008827 | B6.Cg-Tg(Prdm1-cre)1Masu/J | Repository- Live |
| These transgenic mice express Cre recombinase under the control of the mouse Prdm1 (PR domain containing 1, with ZNF domain; Blimp1) promoter. Cre-mediated recombination is detected in 55-76% of primordial germ cells when this strain is crossed with Gt(ROSA)26-GFP reporter mice. Expression is also seen in plasma cells. These mice may be useful for generating tissue-specific targeted mutants for studies of development and germ cell fate. | ||
| 005584 | B6.Cg-Tg(Prrx1-cre)1Cjt/J | Repository- Live |
| Mice homozygous for the transgenic insert are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. These transgenic mice express Cre recombinase under the control of the paired related homeobox 1 promoter. Cre recombinase expression closely patterns endogenous gene expression and is detectable by embryonic day 9.5. Some recombination occurs in the female germline. When crossed with a strain containing a loxP site-flanked sequence of interest, Cre-mediated recombination results in deletion of the flanked sequence in early limb bud mesenchyme. This strain represents an effective tool for generating tissue specific-targeted mutants useful in studies of limb bud development and patterning. | ||
| 008454 | B6.Cg-Tg(Sox2-cre)1Amc/J | Repository- Live |
| Mice hemizygous for the Sox2Cre transgene are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. These transgenic mice express Cre recombinase under the control of the mouse SRY-box containing gene 2 promoter. When these transgenic mice are bred with mice containing loxP-flanked sequences, Cre-mediated recombination will result in deletion of the floxed sequences in Sox2-expressing tissues in the offspring. Specifically, Cre recombinase activity is detected in the epiblast cells at embryonic day 6.5, with little or no activity in other cells at gastrulation. Some activity is also detected in extra embryonic derivatives of the epiblast, the yolk sac mesoderm and amnion. No Cre recombinase activity is detected in primitive endoderm derived tissues, visceral endoderm. The phenotype of homozygous mice has not been characterized to date (April 2011). These Sox2Cre transgenic may be useful for generating epiblast-derived specific ..... For more information please see the full phenotype on the strain data sheet | ||
| 006361 | B6.Cg-Tg(Sp7-tTA,tetO-EGFP/cre)1Amc/J | Repository- Live |
| Mice hemizygous for this Osx1-GFP::Cre transgene are viable and fertile.
The transgene carries both tTA under the regulation of the osterix (Sp7) promoter and, just downstream, a tetracycline responsive element (TRE; tetO)-controlled GFP/Cre fusion protein. In the absence of the tetracycline analog doxycycline, EGFP-Cre fusion protein expression is restricted to the osteoblast lineage throughout embryonic and early postnatal development. Fusion protein activity is largely absent from chondrocytes. When these transgenic animals are mated to transgenic strains that carry loxP-flanked (floxed) conditional alleles, Cre-mediated recombination of the floxed allele in the double mutant animals is placed under the regulation of doxycycline (dox) such that dox adminstration prevents fusion protein expression and recombination. The donating investigator suggests that the mice be maintained on dox-treated water to avoid incidental effects of tTA expression (e.g., malocclusion). Th ..... For more information please see the full phenotype on the strain data sheet | ||
| 003966 | B6.Cg-Tg(Syn1-cre)671Jxm/J | Repository- Live |
| These transgenic mice express Cre recombinase under the direction of a synapsin promoter. Mice that are homozygous for the transgenic insert are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. Recombinase activity is detected in neuronal cells by embryonic day 12.5. | ||
| 004128 | B6.Cg-Tg(Tek-cre)12Flv/J | Repository- Live |
| These transgenic mice express Cre recombinase under the direction of the receptor tyrosine kinase Tek promoter/enhancer, which has been shown to provide uniform expression in endothelial cells during embryogenesis and adulthood. Mice that are hemizygous for the transgenic insert are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. Recombinase activity results in the deletion of loxP flanked targets in the female germline as well as in endothelial cells and hematopoietic cells. A low frequency of deletion events are also observed by inheritance from the male germline. | ||
| 008863 | B6.Cg-Tg(Tek-cre)1Ywa/J | Repository- Live |
| These transgenic mice express Cre recombinase under the direction of the receptor tyrosine kinase Tek (Tie2) promoter/enhancer, which has been shown to provide uniform expression in endothelial cells during embryogenesis and adulthood. Mice that are hemizygous for the transgenic insert are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. Recombinase activity results in the deletion of loxP flanked targets in vascular endothelial cells. | ||
| 008601 | B6.Cg-Tg(Th-cre)1Tmd/J | Repository- Live |
| Mice hemizygous for the TH-Cre transgene are viable and fertile, with the rat tyrosine hydroxylase (TH) promoter directing expression of Cre recombinase to catecholaminergic cells. Using crosses to reporter strains, cre activity is confirmed in catecholaminergic cells and is present in many of the projection areas of these neuronal populations. A mosaic of cre activity is noted in TH-positive neurons. Several other areas that are not typically thought to have active TH expression, including the lateral septal nucleus, accessory olfactory bulb, suparafascicular thalamus, and pretectal area, also exhibit Cre recombinase activity (possibly as a result of TH promoter activity in precursor cell populations or ectopic expression from the exogenous TH promoter). Some TH-negative cells closely clustered around and within TH-positive nuclei demonstrate cre activity. When bred with mice containing a loxP-flanked sequence of interest, Cre-mediated recombination will re ..... For more information please see the full phenotype on the strain data sheet | ||
| 007901 | B6.Cg-Tg(Thy1-Brainbow1.0)HLich/J | Repository- Live |
| These Thy1-Brainbow 1.0 (line H) transgenic mice are viable and fertile. The mice possess multiple fluorescent protein sequences uniquely flanked with pairs of incompatible Lox sites alternated to create mutually exclusive recombination events; allowing stochastic expression of multiple fluorescent proteins from a single transgene. Prior to Cre-mediated recombination, the fluorescent protein immediately adjacent to the promoter, tdimer2(12) (RFP), is expressed in peripheral and central neurons. When bred to Cre recombinase expressing mice, the resulting offspring can have one of three expression outcomes for each transgene in each cell of the cre expressing tissue(s): tdimer2(12) (RFP) (no recombination), mYFP, or mCerulean (CFP). A palmitoylation sequence tethers the mYFP and mCerulean (CFP) to the membrane, allowing clear labeling of axonal processes, while cytoplasmic tdimer2(12) (RFP) better labeled neuronal cell bodies and dendrites. Integration of tandem transgen ..... For more information please see the full phenotype on the strain data sheet | ||
| 007911 | B6.Cg-Tg(Thy1-Brainbow1.1)MLich/J | Repository- Live |
| These Thy1-Brainbow 1.1 (line M) transgenic mice are viable and fertile. The mice possess multiple fluorescent protein sequences uniquely flanked with pairs of incompatible Lox sites alternated to create mutually exclusive recombination events; allowing stochastic expression of multiple fluorescent proteins from a single transgene. Although the fluorescent protein immediately adjacent to the promoter, Kusabira-Orange (kOFP), was designed to be expressed prior to Cre-mediated recombination, basal kOFP expression is not observed in mouse tissues. When bred to Cre recombinase expressing mice, however, the resulting offspring can have one of three expression outcomes for each transgene in each cell of the cre expressing tissue(s): mCerulean (CFP), mYFP, or mCherry (RFP). The resulting fluorescent protein expression is observed in astrocytes of all areas of the brain and spinal cord, as well as dentate gyrus granule cells. A palmitoylation sequence tethers the mCherry (RFP), ..... For more information please see the full phenotype on the strain data sheet | ||
| 007921 | B6.Cg-Tg(Thy1-Brainbow2.1)RLich/J | Repository- Live |
| These Thy1-Brainbow 2.1 (line R) transgenic mice are viable and fertile. The mice possess two invertible DNA segments (four fluorescent protein sequences in total) uniquely positioned in tandem and flanked with LoxP sites to generate a larger number of recombination outcomes; allowing stochastic expression of multiple fluorescent proteins from a single transgene. Although the fluorescent protein immediately adjacent to the promoter, hrGFPII (with nuclear localization signal), was designed to be expressed prior to Cre-mediated recombination, basal hrGFPII expression may not be observed in mouse tissues. When bred to Cre recombinase expressing mice, however, the resulting offspring can have one of three different inversions for each transgene in each cell of the cre expressing tissue(s). In addition, two excision events may reduce the construct to one of two single invertible DNA segments which can continue to invert as long as cre is present. These different recomb ..... For more information please see the full phenotype on the strain data sheet | ||
| 007606 | B6.Cg-Tg(Thy1-cre/ERT2,-EYFP)AGfng/J | Repository- Live |
| These transgenic mice ("SLICK" for single-neuron labeling with inducible Cre-mediated knock-out) have a tamoxifen inducible Cre-mediated recombination system and Enhanced Yellow Fluorescent Protein driven by 2 bidirectional copies of the mouse thymus cell antigen 1 promoter. Hemizygotes are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. The Donating Investigator has not attempted to make the strain homozygous. When crossed with a strain containing a loxP site flanked sequence of interest, the offspring are useful for generating tamoxifen-induced, Cre-mediated targeted neuron-specific deletions only in neurons where the Thy1 promoter is active. These cells will be evident by the expression of Yellow Fluorescent Protein. Transgenic mice express YFP constitutively in neurons. The Donating Investigator reports that founder line A mice express the transgene in small subsets of motor neurons and dorsal root ganglion neurons.
..... For more information please see the full phenotype on the strain data sheet | ||
| 012328 | B6.Cg-Tg(Tyr-cre/ERT2)13Bos/J | Repository- Live |
| Homozygous mice are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. Cre-ERT2 fusion gene activity can be induced following tamoxifen or 4-hydroxytamoxifen administration. When Tyr::CreERT2 mice are bred with mice containing loxP-flanked sequences, inducible Cre-mediated recombination will result in deletion of the floxed sequences in the Tyr-expressing cells of the offspring. The donating investigator reports that Cre recombinase activity is observed in embryonic melanoblasts, follicular bulb melanocytes, dermal dendritic melanocytes, epidermal melanocytes of tail skin and ocular chorid cells. Recombinase expression was not observed in the other major tissues/organs tested. This mutant mouse strain may be useful in studies of melanocyte development, melanocyte stem cell function and melanomas. | ||
| 015805 | B6.Cg-Tg(UBC-GFP,-TVA)1Clc/J | Repository- Live |
| The cTVA transgene contains the human ubiquitin C (UBC) promoter/enhancer elements drive expression of a loxP-flanked green fluorescent protein (GFP) and polyadenylation sequence, followed by an avian specific retroviral receptor (TVA) gene derived from quail. Hemizygous mice are viable and fertile. UBC is a polyubiquitin precursor responsible for the regulation of cell signaling pathways upon conjugation with various proteins. In this mutant mouse, GFP is expressed in UBC-expressing cells. When bred to mice that express Cre recombinase, offspring will have the floxed-GFP-STOP cassette deleted in the cre-expressing tissue(s), resulting in TVA overexpression in UBC-expressing cells. Upon expression of TVA, these cells are capable of binding viruses with the envelope protein of avian sarcoma/leukosis virus subtype A (ASLV-A). These cTVA mice may be useful for infection by retroviruses, rabies virus, and other viruses with ASLV-A ..... For more information please see the full phenotype on the strain data sheet | ||
| 015806 | B6.Cg-Tg(UBC-GFP,-TVA)2Clc/J | Repository- Live |
| The cTVA transgene contains the human ubiquitin C (UBC) promoter/enhancer elements drive expression of a loxP-flanked green fluorescent protein (GFP) and polyadenylation sequence, followed by an avian specific retroviral receptor (TVA) gene derived from quail. Hemizygous mice are viable and fertile. UBC is a polyubiquitin precursor responsible for the regulation of cell signaling pathways upon conjugation with various proteins. In this mutant mouse, GFP is expressed in UBC-expressing cells. When bred to mice that express Cre recombinase, offspring will have the floxed-GFP-STOP cassette deleted in the cre-expressing tissue(s), resulting in TVA overexpression in UBC-expressing cells. Upon expression of TVA, these cells are capable of binding viruses with the envelope protein of avian sarcoma/leukosis virus subtype A (ASLV-A). These cTVA mice may be useful for infection by retroviruses, rabies virus, and other viruses with ASLV-A ..... For more information please see the full phenotype on the strain data sheet | ||
| 015807 | B6.Cg-Tg(UBC-GFP,-TVA)3Clc/J | Repository- Live |
| The cTVA transgene contains the human ubiquitin C (UBC) promoter/enhancer elements drive expression of a loxP-flanked green fluorescent protein (GFP) and polyadenylation sequence, followed by an avian specific retroviral receptor (TVA) gene derived from quail. Hemizygous mice are viable and fertile. UBC is a polyubiquitin precursor responsible for the regulation of cell signaling pathways upon conjugation with various proteins. In this mutant mouse, GFP is expressed in UBC-expressing cells. When bred to mice that express Cre recombinase, offspring will have the floxed-GFP-STOP cassette deleted in the cre-expressing tissue(s), resulting in TVA overexpression in UBC-expressing cells. Upon expression of TVA, these cells are capable of binding viruses with the envelope protein of avian sarcoma/leukosis virus subtype A (ASLV-A). These cTVA mice may be useful for infection by retroviruses, rabies virus, and other viruses with ASLV-A ..... For more information please see the full phenotype on the strain data sheet | ||
| 008085 | B6.Cg-Tg(UBC-cre/ERT2)1Ejb/J | Repository- Live |
| Mice hemizygous for this Cre-ERT2 transgene are viable and fertile. Mice from this founder line have strong tamoxifen-inducible cre activity in all reported tissue types. The Cre-ERT2 fusion protein consists of Cre recombinase fused to a triple mutant form of the human estrogen receptor; which does not bind its natural ligand (17β-estradiol) at physiological concentrations but will bind the synthetic estrogen receptor ligands 4-hydroxytamoxifen (OHT) and, with lesser sensitivity, ICI 182780. Restricted to the cytoplasm, Cre-ERT2 can only gain access to the nuclear compartment after exposure to OHT. To counteract the mixed estrogen agonist effects of tamoxifen injections, which can result in late fetal abortions in pregnant mice, progesterone may be coadministered. When these Cre-ERT2 mice are bred with mice containing a loxP-flanked sequence of interest, tamoxifen-inducible, Cre-mediated recombination will result in deletion of the flanked sequences in widespread cel ..... For more information please see the full phenotype on the strain data sheet | ||
| 008610 | B6.Cg-Tg(Vav1-cre)A2Kio/J | Repository- Live |
| Mice hemizygous for this Vav-iCre transgene are viable and fertile, with the mouse HS21/45-vav control regions directing expression of an optimized variant of Cre recombinase (iCre) to hematopoietic cells (and their progenitors). Using crosses to a reporter strain, variegated germ line (testis and ovaries), and heart and gut expression is also reported. When bred with mice containing a loxP-flanked sequence of interest, Cre-mediated recombination will result in deletion of the floxed sequence(s) in the offspring. These Vav-iCre transgenic mice may be useful for generating conditional mutations in hematopoietic cells.
Of note, this Vav-iCre strain (Stock No. 008610) allows reliable deletion of specific genes throughout the entire hematopoietic compartment, whereas the hCD2-iCre strain (Stock No. 008520) allows targeting to be focused to T cells and B cells. | ||
| 009614 | B6.Cg-Tg(Wfs1-cre/ERT2)2Aibs/J | Repository- Live |
| Hemizygous Wfs1-Tg2-CreERT2 mice are viable and fertile. As the Cre-ERT2 fusion gene is under control of the Wfs1 promoter/enhancer regions within the BAC transgene, cre activity is directed to cortex, hippocampus, and cerebellum only following tamoxifen administration. The donating investigators report that Cre recombinase expression for this Wfs1-Tg2-CreERT2 line is more restricted than the Wfs1-Tg3-CreERT2 line (Stock No. Stock No. 009103). The donating investigators may not have assessed expression in tissues other than brain. The Cre-ERT2 fusion protein consists of Cre recombinase fused to a triple mutant form of the human estrogen receptor; which does not bind its natural ligand (17β-estradiol) at physiological concentrations but will bind the synthetic estrogen receptor ligands 4-hydroxytamoxifen (OHT or tamoxifen) and, with lesser sensitivity, ICI 182780. Restricted to the cytoplasm, Cre-ERT2 can only ga ..... For more information please see the full phenotype on the strain data sheet | ||
| 009107 | B6.Cg-Tg(Wnt1-cre)11Rth Tg(Wnt1-GAL4)11Rth/J | Repository- Live |
| In 2011, Stock No. 009107 at The Jackson Laboratory Repository was confirmed to harbor the expected Wnt1-Cre transgene, as well as the originally co-injected Wnt1-GAL4 transgene. The strain phenotype description below has been updated accordingly.
When homozygous for both co-injected transgenes, Wnt-1/GAL4/cre-11 transgenic mice are viable, fertile, normal in size and do not display any gross physical abnormalities. Of note for Wnt-1/GAL4/cre-11 transgenic mice on the original mixed genetic background, the donating investigator (Dr. Epstein) reported that homozygous mice may be lethal as some offspring from transgenic parents die around two months of age. Both Cre recombinase and the GAL4 transcriptional activator are expressed under the direction of wingless-related MMTV integration site 1 (Wnt1) promoter/regulatory sequences. Cre recombinase activity is detected in the Wnt1 pattern of expression: in the midbrain by 8.5 dpc and, after neural ..... | ||
| 006234 | B6.Cg-Tg(tetO-cre)1Jaw/J | Repository- Live |
| Hemizygous transgenic mice are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. These transgenic mice express Cre recombinase under the control of a tetracycline-responsive promoter element (TRE; tetO). When hemizygotes are bred with another transgenic mouse expressing either reverse tetracycline-controlled transactivator protein (rtTA) or tetracycline-controlled transactivator protein (tTA) under the control of tissue-specific promoters, Cre recombinase expression and Cre-mediated recombination in the appropriate tissues of the bitransgenic offspring can be regulated with the tetracycline analog, doxycycline. This strain represents an effective tool for generating inducible tissue specific-targeted mutants to study cell lineage during development.
In an attempt to offer alleles on well-characterized or multiple genetic backgrounds, alleles are frequently moved to a genetic background different from that on which an allele was fi ..... | ||
| 005657 | B6.FVB(129)-Tg(Myh6-cre/Esr1*)1Jmk/J | Repository- Live |
| The alpha-MHC-MerCreMer transgene has the mouse Myh6 promoter (myosin, heavy polypeptide 6, cardiac muscle, alpha; alpha-MHC) directing expression of a tamoxifen-inducible Cre recombinase (MerCreMer) to juvenile and adult cardiac myocytes. Mice homozygous for the alpha-MHC-MerCreMer transgene are viable, fertile, normal in size, and do not display any gross physical or behavioral abnormalities. Cre recombinase expression in heart tissue is confirmed by western blot. Southern blot confirmed heart cell specificity compared to brain, kidney, lung, liver, and skeletal muscle. Insertion of this transgene and its protein show no changes in echocardiography, heart mass or pathology, or hypertrophy marker genes compared to nontransgenic littermates. Of note, the MerCreMer double fusion protein has substantially greater Cre recombinase activity with less promiscuity compared with the CreMer single fusion protein. When alpha-MHC-MerCreMer transgenic mice are bred with mice containing For more information please see the full phenotype on the strain data sheet | ||
| 006475 | B6.FVB(129S4)-Tg(Ckmm-cre)5Khn/J | Repository- Live |
| Hemizygous mice are viable, fertile, normal in size, and do not display any gross physical or behavioral abnormalities. These transgenic mice have the Cre recombinase gene driven by the muscle creatine kinase (MCK or Ckm) promoter. Cre activity is observed in skeletal and cardiac muscle. When bred with mice containing a loxP-flanked sequence of interest, Cre-mediated recombination will result in skeletal and cardiac muscle deletion of the flanked genome. | ||
| 006333 | B6.FVB(Cg)-Tg(Neurog3-cre)C1Able/J | Repository- Live |
| Mice hemizygous for the transgenic insert are viable, fertile, normal in size, and do not display any gross physical or behavioral abnormalities. Expression of the transgene is directed by a neurogenin 3 promoter. Tissues where Cre recombinase expression is detected include the small intestine (base of intestinal crypts) and fetal pancreatic epithelial cells. Cre activity has been shown in islets of the adult pancreas, small intestine enteroendocrine cells, endocrine portions of the stomach, all pancreatic endocrine cells, and in some non-endocrine intestinal cells. When bred with a mouse containing a loxP site-flanked sequence of interest, Cre-mediated recombination results in deletion of the flanked gene in the tissues that normally express neurogenin 3.
In an attempt to offer alleles on well-characterized or multiple genetic backgrounds, alleles are frequently moved to a genetic background different from that on which an allele was first characterized. It should be not ..... | ||
| 014643 | B6.FVB-Tg(CMA1-cre)6Thhe/J | Repository- Live |
| These transgenic mice express Cre recombinase under the direction of the baboon CMA1, chymase 1, mast cell, promoter. Cre recombinase transcript (mRNA) is detected in lung and colon analyzed by RT-PCR. Transgene expression (mRNA by RT-PCR) and Cre recombinase activity is not detected in skin or heart tissues. Recombinase activity is detected in lung and colon tissue, specifically in resident mast cells. Transgene expression and Cre recombinase activity is not detected in cultured bone marrow derived mast cells by RT-PCR analysis or FACS analysis. When crossed with a strain containing loxP site flanked sequence of interest, Cre-mediated recombination results in tissue-specific deletion of the target. Mice hemizygous for the transgenic insert are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. The Donating Investigator reports that homozygotes are not viable. | ||
| 003724 | B6.FVB-Tg(EIIa-cre)C5379Lmgd/J | Repository- Live |
| This line carries a cre transgene under the control of the adenovirus EIIa promoter that targets expression of Cre recombinase to the early mouse embryo. Cre expression is thought to occur prior to implantation in the uterine wall. A mosaic pattern of expression is commonly observed. Cre-mediated recombination occurs in a wide range of tissues, including the germ cells that transmit the genetic alteration to progeny. These mice may be useful for breeding to other mice carrying loxP-flanked DNA sequences of interest. This would readily generate progeny in which Cre-mediated excision of the targeted sequences has occurred.
View cre expression characterization. | ||
| 011069 | B6.FVB-Tg(Gh1-cre)bKnmn/J | Repository- Live |
| These transgenic mice express Cre recombinase under the control of the rat growth hormone gene, Gh1. Mice homozygous for the transgenic insert are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. Cre recombinase gene product (mRNA) is detected in the pituitary and, at lower levels, in the testis by RT-PCR of tissues from 8-10 week old mice. Cre recombinase expression is also detected by RT-PCR analysis of cephalic extracts from hemizygous embryos aged embryonic day 17. Recombination is detected in the anterior pituitary gland, in the somatotrope cells and a subset of the lactotrope cells. Cre recombinase expression is not detected in the ovary, hypothalamus, cortex, cerebelum, heart, lung, liver, spleen, kidney, adrenal, pancreas, stomach, adipose or uterus. | ||
| 011038 | B6.FVB-Tg(Myh6-cre)2182Mds/J | Repository- Live |
| The cardiac-specific murine alpha myosin-heavy chain (Myh6, myosin, heavy polypeptide 6, cardiac muscle, alpha) promoter drives expression of cre in this transgenic strain. Breeding this mouse with another carrying loxP-flanked sequences results in the deletion of the flanked sequences in the offspring. The promoter induces greater than 90% recombination in cardiac muscle cells. No recombination is observed in liver, lung, skeletal muscle (quadriceps), and spleen, or in extraneous cell types in the heart. | ||
| 010714 | B6.FVB-Tg(Pomc-cre)1Stl/J | Repository- Live |
| In this strain, the mouse pro-opiomelanocortin-alpha (Pomc) promoter drives expression of cre in the central nervous system, primarily the hippocampus. Cre expression is strongest and most restricted to the granule cells of the dentate gyrus subregion. Weaker, scattered expression can also be detected in other regions including the arcuate nucleus of the hypothalamus and the habenular nucleus. When crossed with a strain carrying a loxP-flanked genomic segment of interest, tissue-specific excision of that segment may be achieved. | ||
| 006660 | B6.SJL-Slc6a3tm1.1(cre)Bkmn/J | Repository- Live |
| Mice homozygous for this dopamine transporter IRES-cre (DATIREScre) mutant allele are viable and fertile. Cre recombinase activity is observed as early as embryonic day 15, and co-localizes with endogenous gene expression in adult dopaminergic cell groups (substantia nigra (SN) and ventral tegmental area (VTA), as well as in the retrorubral field). Lesser Cre recombinase activity occurs in adult olfactory bulb glomeruli, mimicking the known lower Slc6a3 (or DAT) expression in this tissue. Although the pattern and intensity of DAT immunostaining in the SN, VTA and striatum do not differ between wild-type and mutant mice, striatum DAT protein levels are moderately reduced (17%) in heterozygotes and significantly reduced (47%) in homozygotes. This diminution in homozygous striatum is associated with significantly increased neuropeptide PDyn (but not D1, D2, or PPE) mRNA levels compared to wild-type, while such an increase is not observed in heterozygotes. When bre ..... For more information please see the full phenotype on the strain data sheet | ||
| 004586 | B6.SJL-Tg(Vil-cre)997Gum/J | Repository- Live |
| Mice hemizygous for this transgene express Cre recombinase under the direction of the mouse villin 1 promoter. When crossed with a strain containing a loxP site-flanked sequence of interest, Cre-mediated recombination results in tissue-specific deletion of the target. Recombination occurs in villi and crypt cells of the small and large intestines, closely patterning the endogenous gene expression. The Donating Investigator indicates that expression is generally continuous, but that a small amount of mosaicism is noted in the colon. Onset of transgene expression is at 12.5 dpc, which is delayed from the endogenous mouse Vil1 gene expression onset of 9.0 dpc. Hemizygous mutant mice are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. This mutant mouse strain may be useful in studies of intestinal organogenesis. | ||
| 010687 | B6;129-Adora2atm1Dyj/J | Repository- Live |
| These mice possess loxP sites on either side of exon 2 of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When these mutant mice are bred to mice that express Cre recombinase, resulting offspring will have the critical exon deleted in the cre-expressing tissues. When bred to a strain expressing Cre recombinase in the forebrain (see Stock No. 005359 for example), this mutant mouse strain may be useful in studies of locomoter activity response to addictive substances. | ||
| 010531 | B6;129-Bmi1tm1(cre/ERT)Mrc/J | Repository- Live |
| These targeted mutant mice carry tamoxifen-inducible Cre under the transcriptional control of the mouse Bmi1 (Bmi1 polycomb ring finger oncogene) promoter specifically expressed in discrete cells located near the bottom of crypts in the small intestine (predominantly four cells above the base of the crypt). When crossed with a strain containing a loxP-flanked sequence of interest, the offspring are useful for generating tamoxifen-induced, Cre-mediated targeted deletions. When crossed with a floxed reporter strain, lineage tracing of Bmi1-expressing cells is possible. | ||
| 008364 | B6;129-Chattm1(cre/ERT)Nat/J | Repository- Live |
| These targeted mutation mice carry a tamoxifen-inducible Cre cassette knocked into the 3' UTR of the gene. When crossed with a strain containing a loxP site flanked sequence of interest, the offspring are useful for generating 4-hydroxytamoxifen-induced, Cre-mediated targeted deletions specifically in cholinergic neurons. Heterozygotes and homozygotes are normal in size, viability and fertility. | ||
| 010527 | B6;129-Gt(ROSA)26Sortm1(DTA)Mrc/J | Repository- Live |
| These R26RDTA (or ROSA26-DTA176) mice carry a loxP-flanked stop cassette associated with an attentuated diptheria toxin. When crossed with a Cre recombinase-expressing strain, tissue/cell-specific ablation of cells can be achieved. Mice that are homozygous for this floxed allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. | ||
| 004847 | B6;129-Gt(ROSA)26Sortm1(cre/ERT)Nat/J | Repository- Live |
| These R26CreER mutant mice have a tamoxifen-inducible Cre-mediated recombination system driven by the endogenous mouse Gt(ROSA)26Sor promoter. The mutant allele consists of a fusion product involving Cre recombinase and an altered version of the mouse estrogen receptor ligand binding domain. The mutant ligand binding domain does not bind natural ligand at physiological concentrations but will bind the synthetic ligand, 4-hydroxytamoxifen. Restricted to the cytoplasm, the CRE/ESR1 protein can only gain access to the nuclear compartment to mediate recombination after exposure to tamoxifen. Tamoxifen administration will also induce Cre recombination in the developing embryos of treated mothers. When crossed with a strain containing a loxP site-flanked sequence of interest, this mutant is useful for generating tamoxifen-induced, Cre-mediated targeted deletions. Homozygous mutant mice are viable, fertile, normal in size and do not display any gross physical or behavioral abnor ..... For more information please see the full phenotype on the strain data sheet | ||
| 008516 | B6;129-Gt(ROSA)26Sortm1Joe/J | Repository- Live |
| Homozygous ROSA26 GNZ knock-in mice are viable and fertile, with a nuclear-localized green fluorescent protein/beta-galactosidase fusion protein (GFP-NLS-lacZ or GNZ) inserted into the Gt(ROSA)26Sor (ROSA26) locus. Widespread expression of GNZ is blocked by an upstream loxP-flanked STOP sequence (in the absence of Cre recombinase, no expressed GFP or beta-galactosidase activity is observed in GNZ embryos(E9.5-18.5)). When bred to cre expressing mice, offspring will have the STOP sequence deleted in tissues where Cre recombinase is present. The resulting GNZ fusion protein expression allows for enhanced (single cell level) visualization / resolution. The donating investigator reports that Cre recombinase activity can be visualized by direct GFP fluorescence, but the high resolution nuclear staining of GNZ may be best visualized by immunostaining for either GFP or beta-galactosidase. These ROSA26 GNZ mice are useful as a Cre reporter strain; expressing both G ..... For more information please see the full phenotype on the strain data sheet | ||
| 004077 | B6;129-Gt(ROSA)26Sortm2Sho/J | Repository- Live |
| These mice contain an Enhanced Green Fluorescent Protein (EGFP) gene inserted into the Gt(ROSA)26Sor locus. Expression of the EGFP gene is blocked by a loxP-flanked STOP fragment placed between the EGFP sequence and the Gt(ROSA)26Sor promoter. This strain serves as a reporter strain, with successful Cre excision being indicated by EGFP expression in cre-expressing tissues. Mice that are homozygous for the transgenic insert are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. The donating investigator indicates that the EGFP expression level in this reporter strain is suitable for applications involving FACS but is too low for histological applications. | ||
| 010557 | B6;129-Gt(ROSA)26Sortm3(rtTA,tetO-cre/ERT)Nat/J | Repository- Live |
| These R26rtTACreER mice have a CreERT, reverse tetracycline trans-activator (rtTA), and Tet-responsive element (TRE) targeted to the mouse Gt(ROSA)26Sor gene to create a gene expression tool with two independent layers of pharmacologic control and a widespread pattern of activity. In this construct, expression of tamoxifen-sensitive CreERT is under the control of rtTA, a sequence-specific DNA-binding protein that activates transcription upon binding tetracycline derivatives such as doxycycline. Upon administration of doxycycline, rtTA activates transcription of the CreER coding region by binding to the Tet operator located immediately 5' of a minimal promoter. This enhances the dynamic range of CreER and enables sparse labeling in situations where reduced recombination efficiency facilitates behavioral, morphological or functional studies of modified cells among populations of unmodified neighbors. | ||
| 012251 | B6;129-Igf1rtm2Arge/J | Repository- Live |
| These mice possess loxP sites on either side of exon 3 of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When these mutant mice are bred to mice that express Cre recombinase, resulting offspring will have exon 3 deleted in the cre-expressing tissue(s).
When crossed with a mouse overexpressing constitutively active Kras and expressing mammary gland specific Cre recombinase, this IGF1RLox mutant mouse strain may be useful in studies of mammary tumorigenesis (Proc Natl Acad Sci U S A 2009 Feb 17;106(7):2359-64).
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| 004605 | B6;129-Itgb1tm1Efu/J | Repository- Live |
| These mice possess loxP sites on either side of exon 3 of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities.
When bred to a strain expressing Cre recombinase in the epithelial cells of the intestine (see Stock No. 004586 for example), this mutant mouse strain may be useful in studies of intestinal hyperplasia. When bred to a strain expressing Cre recombinase in the podocytes of the kidney glomeruli (see Stock No. 008205 for example), this mutant mouse strain may be useful in studies of glomerular structural integrity. | ||
| 010528 | B6;129-Myf6tm2(cre)Mrc/J | Repository- Live |
| In this strain, the mouse myogenic factor 6 (Myf6) promoter drives expression of both the targeted gene and cre in differentiated myocytes of skeletal muscle lineage. When crossed with a strain carrying a loxP-flanked genomic segment of interest, tissue-specific excision of that segment may be achieved in the offspring. | ||
| 008475 | B6;129-Nlgn3tm1Sud/J | Repository- Live |
| These mice carry an R451C mutation in exon 7 of the gene. mRNA is detected by real-time PCR analysis of brain from homozygous animals. Mutant mice exhibit enhancements in inhibitory synaptic transmission as well as spacial learning and memory, but show deficits in social interaction. This mutant mouse strain may be useful in studies of the pathophysiology of autism. Exon 7 is additionally flanked by loxP sites. When used in conjunction with a Cre recombinase-expressing strain, this strain is useful in generating tissue-specific mutants of the floxed allele. Mice that are homozygous for the targeted mutation are viable, fertile, normal in size and do not display any gross physical abnormalities. | ||
| 016194 | B6;129-Nrxn3tm4.1Sud/J | Repository- Live |
| 005549 | B6;129-Pax3tm1(cre)Joe/J | Repository- Live |
| This strain expresses Cre recombinase from the endogenous Pax3 locus. Expression of the targeted gene product (mRNA and protein) mimics endogenous gene expression as detected by in situ hybridization and immunohistochemistry of homozygous embryos aged E12.5. No endogenous Pax3 gene product (protein) is detected in homozygotes and approximately one half of the endogenous gene product (protein) is detected in heterozygotes by Western blot analysis. Cre recombinase expression is detected in the dorsal neural tube and somites of E9 to 11.5 embryos and in the cardiac neural crest cells and colonic epithelia of E11.5 embryos. Recombination occurs in neural crest and somite derivatives of later gestation embryos. Homozygous mice have an embryonic lethal phenotype, failing to develop past embryonic day 18.5. At age E13.5 homozygous embryos display severe cardiac and neural tube defects (exencephaly), absent limb musculature and reduced or absent dorsal root ganglia. Heterozygous ..... For more information please see the full phenotype on the strain data sheet | ||
| 012653 | B6;129-Pax7tm1.1Fan/J | Repository- Live |
| These mice possess loxP sites on either side of exon 2 of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When these mutant mice are bred to mice that express Cre recombinase, resulting offspring will have exon 2 deleted in the cre-expressing tissue(s).
For example, when crossed to a strain expressing tamoxifen-inducible Cre recombinase in myogenic progenitor cells (see Stock No. 012476), this mutant mouse strain may be useful in studies muscle stem cells. | ||
| 012476 | B6;129-Pax7tm2.1(cre/ERT2)Fan/J | Repository- Live |
| Mice that are heterozygous for the targeted mutation are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. Only approximately 10% of homozygotes live to adulthood. Surviving adult homozygotes are approximately half the size of heterozygote animals. The fertility of homozygotes has not been tested. In contrast to B6.129S-Pax7tm1(cre/ERT2)Gaka/J mice, which express a functional PAX7 gene product, no PAX7 protein is detected in 10 day old homozygotes. The Ds-Red is not detectable by immunostaining or FACS. When crossed with a strain containing a loxP site flanked sequence of interest, the offspring are useful for generating tamoxifen-induced, Cre-mediated targeted deletions in tissues such as myogenic progenitor cells and adult myogenic satellite cells. | ||
| 014168 | B6;129-Pot1atm1.1Tdl/J | Repository- Live |
| These targeted mutant mice possess loxP sites on either side of the third coding exon of the Pot1a (protection of telomeres 1A) gene. Mice that are homozygous for this floxed allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When bred to mice that express Cre recombinase, resulting offspring will not express the targeted gene in cre-expressing tissues. | ||
| 014169 | B6;129-Pot1btm1.1Tdl/J | Repository- Live |
| These targeted mutant mice possess loxP sites on either side of the third coding exon of the Pot1b (protection of telomeres 1B) gene. Mice that are homozygous for this floxed allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When crossed with a Cre recombinase-expressing strain, this strain is useful in eliminating tissue-specific expression of the gene. This strain may be useful in studies of telomere biology. | ||
| 010673 | B6;129-Runx1tm3.1Spe/J | Repository- Live |
| These mice possess loxP sites on either side of exon 4 of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When these mutant mice are bred to mice that express Cre recombinase, resulting offspring will have exon 4 deleted in the cre-expressing tissues. When bred to a strain with inducible Cre recombinase during development (see Stock No. 003556 for example), this mutant mouse strain may be useful in studies of hematopoiesis and development. | ||
| 004293 | B6;129-Shhtm2Amc/J | Repository- Live |
| Mice that are homozygous for the Shhtm2Amc targeted mutation are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. This conditional mutant contains two loxP sites flanking exon 2 of the targeted allele. Cre-mediated recombination excises exon 2 and some surrounding intronic sequence, generating a null allele. When the conditional mutant is crossed with a ubiquitously-expressing Cre recombinase carrier to remove Shh activity in the early embryo, the resulting phenotype resembles the Shh null mutation. These conditional mutant mice may be mated to strains expressing Cre recombinase to study the effects of temporal and tissue-specific ablation of the targeted allele. This mutant mouse strain represents a model that may be useful in studies of developmental defects resulting from disruption of Shh-dependent pathways.
When bred to a strain expressing Cre recombinase under the control of a tet ..... | ||
| 008041 | B6;129-Sirt1tm1Ygu/J | Repository- Live |
| Mice homozygous for this targeted allele (SirT1co/co) are viable and fertile. A loxP-flanked neomycin cassette just upstream of exon 4 and a third loxP site downstream of exon 4 were inserted to create this targeted mutant Sirt1 allele. The floxed mutation does not affect SIRT1 protein expression in MEFs or mammary gland tissue in homozygotes. When bred to mice that express Cre recombinase, the resulting offspring have exon 4 (encoding an evolutionarily conserved Sir2 motif) deleted in cre-expressing tissue(s); (the donating investigator reports only one recombination event: complete removal of the neomycin cassette and exon 4, leaving a single loxp). These SirT1co/co mice may be useful in generating conditional mutants for studying transcriptional regulation and the role of estrogen, insulin growth factor-1 (IGF-1), and transcription factors (including NF-kappaB) in mammary gland development, mammary cancer, apoptosis, and metabolic di ..... For more information please see the full phenotype on the strain data sheet | ||
| 009600 | B6;129-Six2tm3(EGFP/cre/ERT2)Amc/J | Repository- Live |
| While heterozygous mice are viable and fertile with no reported abnormalities, homozygous mice die shortly after birth. The Six2GCE "knock-in" allele both abolishes Six2 gene function and expresses an eGFPCreERT2 fusion protein (EGFP and creERT2 fusion protein) from the Six2 promoter/enhancer elements. While EGFP immunofluorescence is observed in nephron progenitor population cap mesenchyme from the onset of metanephric kidney development, Cre-ERT2 fusion gene activity is inducible; observed in the same cells only following tamoxifen administration. As such, when Six2GCE mice are bred with mice containing loxP-flanked sequence, tamoxifen-inducible, Cre-mediated recombination will result in deletion of the floxed sequences in the Six2-expressing cells of the offspring.
The Cre-ERT2 fusion protein consists of Cre recombinase fused to a triple mutant form of the human estrogen receptor which does not bind its natural ligand ..... | ||
| 012603 | B6;129-Tgfbr2tm1Karl/J | Repository- Live |
| These TβRII floxed mutant mice possess loxP sites flanking exon 4 of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When these mutant mice are bred to mice that express Cre recombinase, resulting offspring will have exon 4 deleted in cre-expressing tissues. This strain may be useful for studying the cellular and mechanical role of TGF-β in regulating development, hematopoiesis, wound healing, and immune function.
For example, when crossed to a strain expressing Cre recombinase in the neural tube, midbrain and dorsal spinal cord (see Stock No. 007807), this mutant mouse strain may be useful in studies of DiGeorge syndrome. For example, when crossed to a strain expressing interferon inducible Cre recombinase (see Stock No. > ..... | ||
| 012587 | B6;129-Ubbtm3Nat/J | Repository- Live |
| A CMV/beta actin (Z/AP) promoter located 2 kb 5' of the Ubb (ubiquitin B) gene drives constitutive expression of a nuclear-localized beta-galactosidase/neomycin resistance protein reporter (NLS-beta-geo) in the absence of Cre-mediated recombination. Following Cre-mediated recombination, the NLS-beta-geo coding region is excised and a downstream open reading frame is expressed. The downstream open reading frame codes for a single large protein (tdTomato/Tobacco etch virus protease (TEVP), a 6xMyc epitope, a TEVP cleavage site, post-synaptic density protein (PSD95) fused to green fluorescence protein (GFP) with a 3xHA epitope) which cleaves itself into two pieces shortly after translation. When Cre-mediated recombination occurs in neurons, the amino terminal piece (tdTomato/TEVP, a 6xMyc epitope, a TEVP cleavage site) labels all axon and dendrites, and the carboxy-terminal portion (PSD95, GFP, 3xHA epitope) labels presynaptic structures. | ||
| 008529 | B6;129P-Tg(Neurog1-cre/ERT2)1Good/J | Repository- Live |
| These transgenic mice have a tamoxifen inducible Cre-mediated recombination system driven by the mouse neurogenin 1, Neurog1, promoter. The transgene insert contains a fusion product involving Cre recombinase and a mutant form of the mouse estrogen receptor ligand binding domain. The mutant mouse estrogen receptor does not bind natural ligand at physiological concentrations but will bind the synthetic ligand, 4-hydroxytamoxifen. Restricted to the cytoplasm, the Cre/ESR1 protein can only gain access to the nuclear compartment after exposure to tamoxifen. When crossed with a strain containing a loxP site flanked sequence of interest, the offspring are useful for generating tamoxifen-induced, Cre-mediated targeted deletions. Tamoxifen administration induces Cre recombination in the cortex, hippocampus, thalamus, hypothalamus and cochlear-vestibular ganglion. Hemizygous mutant mice are viable, fertile, normal in size and do not display any gross physical or behavioral abnorma ..... For more information please see the full phenotype on the strain data sheet | ||
| 015854 | B6;129P2-Foxl2tm1(GFP/cre/ERT2)Pzg/J | Repository- Live |
| These Fox L2-GCE knock in mice utilize a tamoxifen inducible Cre-mediated recombination system. A GFP-Cre/ERT2 cassette (GCE) was inserted into the Foxl2, forkhead box L2, locus. No green fluorescence was detected by direct fluorescence microscopy, however, immunohistochemical analysis revealed GFP expression in embryos, 15.5 embronic days of age. Tamoxifen administration induces Cre recombination in a small population of granulosa precursor cells in the medulla of the developing ovary of embryos, 15.5 embronic days of age. Mice that are heterozygous for the targeted mutation are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. The Donating Investigator has not attempted to make the strain homozygous. This strain was transferred from the collection of the GenitoUrinary Development Molecular Anatomy Project (GUDMAP). | ||
| 012601 | B6;129P2-Lyve1tm1.1(EGFP/cre)Cys/J | Repository- Live |
| These Lyve-1 EGFP-hCre mice have the Lyve1 (lymphatic vessel endothelial hyaluronan receptor 1) promoter driving expression of Cre recombinase and enhanced green fluorescent protein (EGFP) in lymphatic endothelial cells (LECs). Gene expression from the targeted gene is not blocked. Immunofluorescence analysis of tissue shows selective EGFP staining in the nuclei of cells expressing Lyve1. In the absence of antibody staining, however, the EGFP fluorescence is not readily detected. When crossed with a strain carrying a loxP-flanked genomic segment of interest, tissue-specific excision of that segment may be achieved. Greater than 90% excision efficiency has been reported in LECs with lower excision rates in some hematopoietic precursor cells (e.g. CD45+ lymphocytes and myeloid cells) and blood endothelial cells. This strain is useful for conditional ablation of genes in the lymphatic endothelium and studies of lymphatic development, function and lymphang ..... For more information please see the full phenotype on the strain data sheet | ||
| 006847 | B6;129P2-Mecp2tm1Bird/J | Repository- Live |
| These mice possess two functional loxP sites flanking exons 3-4 of the targeted gene on the X chromosome. Homozygous females and hemizygous males are viable and fertile. Northern blot analysis showed the expected mature transcript from the Mecp2lox locus. Also detected was an unspliced beta-globin transcript that was introduced into the locus as part of the targeting vector. When these mutant mice are bred to mice that express cre recombinase, resulting offspring will have exons 3-4 deleted in the cre-expressing tissue(s). Mice with this X-linked floxed mutation may be useful in neurological and developmental studies of Rett syndrome. For example, when crossed to a strain expressing Cre recombinase in nervous tissue (see Stock No. 003771), this mutant mouse strain develops a neurological phenotype that mimics Rett syndrome. When bred to a strain expressing Cre recombinase in embryonic fo ..... | ||
| 008069 | B6;129P2-Pvalbtm1(cre)Arbr/J | Repository- Live |
| This strain expresses Cre recombinase from the endogenous Pvalb, parvalbumin, locus. When crossed with a strain containing loxP site flanked sequence of interest, Cre-mediated recombination results in tissue-specific deletion of the target. Recombination occurs in more than 90% of neurons that express parvalbumin, such as interneurons in the brain and proprioceptive afferent sensory neurons in the dorsal root ganglia. This mutant mouse strain represents a model that may be useful in studies of neuronal differentiation. | ||
| 012336 | B6;129P2-Terf1tm2.1Tdl/J | Repository- Live |
| These TRF1F mice harbor loxP sites flanking exon 1 (encoding the translation start site) of the telomeric repeat binding factor 1 locus. Telomeres serve a dual role in protecting the chromosome ends from degradation/repair activities and in intracellular signaling for regulating cell proliferation. Mammalian telomeres are formed by tandem TTAGGG sequence repeats bound by a specialized complex of six telomere-associated proteins called the shelterin complex. As TRF1 is one of the components of shelterin, these TRF1F mutant mice may be useful in generating conditional mutations for studying the shelterin complex of telomeres, telomere maintenance, chromosomal stability, cancer, and aging. | ||
| 012569 | B6;129S-Gt(ROSA)26Sortm32(CAG-COP4*H134R/EYFP)Hze/J | Repository- Live |
| Ai32 mice heterozygous for the Rosa-CAG-LSL-ChR2(H134R)-EYFP-WPRE conditional allele are viable and fertile. A loxP-flanked STOP cassette prevents transcription of the downstream ChR2(H134R)-EYFP fusion gene. Because this CAG promoter driven reporter construct was targeted for insertion into the Gt(ROSA)26Sor locus, ChR2(H134R)-EYFP expression is determined by which tissue(s) express Cre recombinase. When bred to mice that express Cre recombinase, the resulting offspring will have the STOP cassette deleted in the cre-expressing tissues; resulting in expression of the ChR2(H134R)-EYFP fusion protein. The donating investigator reports that Ai32 mice do not express ChR2(H134R)-EYFP prior to introduction of Cre recombinase. Fusion protein expression following exposure to cre can be detected by EYFP fluorescence (and presumably by mRNA (in situ hybridization) and antibody staining (immunohistochemistry); although this was not tested by the donating investigator). ..... For more information please see the full phenotype on the strain data sheet | ||
| 012570 | B6;129S-Gt(ROSA)26Sortm34.1(CAG-Syp/tdTomato)Hze/J | Repository- Live |
| Ai34D (or Ai34Δneo) mice heterozygous for the Rosa-CAG-LSL-Synaptophysin-tdTomato-WPRE conditional allele are viable and fertile. A loxP-flanked STOP cassette prevents transcription of the downstream Synaptophysin-tdTomato fusion gene. The Synaptophysin-tdTomato fusion protein is composed of near-full-length mouse synaptophysin protein fused in-frame to the amino terminus of the tdTomato fluorescent protein. Because the CAG promoter driven reporter construct was targeted for insertion into the Gt(ROSA)26Sor locus, Synaptophysin-tdTomato expression is determined by which tissue(s) express Cre recombinase. When bred to mice that express Cre recombinase, the resulting offspring will have the STOP cassette deleted in the cre-expressing tissues; resulting in expression of the Synaptophysin-tdTomato fusion protein. The donating investigator reports that Ai34D mice do not express Synaptophysin-tdTomato prior to introduction of Cre recombinase. Following exposure to ..... For more information please see the full phenotype on the strain data sheet | ||
| 012735 | B6;129S-Gt(ROSA)26Sortm35.1(CAG-AOP3/GFP)Hze/J | Repository- Live |
| Ai35D (or Ai35Δneo) mice heterozygous for the Rosa-CAG-LSL-Arch-GFP-WPRE conditional allele are viable and fertile. A loxP-flanked STOP cassette prevents transcription of the downstream Arch-GFP fusion gene (see below for detailed description of Arch-GFP). Because the CAG promoter driven reporter construct was targeted for insertion into the Gt(ROSA)26Sor locus, Arch-GFP expression is determined by which tissue(s) express Cre recombinase. When bred to mice that express Cre recombinase, the resulting offspring will have the STOP cassette deleted in the cre-expressing tissues; resulting in expression of the Arch-GFP fusion protein.
The donating investigator reports that Ai35D mice do not express Arch-GFP prior to introduction of Cre recombinase. Fusion protein expression following exposure to cre can be detected by GFP fluorescence and mRNA (in situ hybridization) [and presumably by antibody staining (immunohistochemistry); although this was not test ..... For more information please see the full phenotype on the strain data sheet | ||
| 014538 | B6;129S-Gt(ROSA)26Sortm38(CAG-GCaMP3)Hze/J | Repository- Live |
| Ai38 mice heterozygous for the Rosa-CAG-LSL-GCaMP3-WPRE conditional allele are viable and fertile. A loxP-flanked STOP cassette prevents transcription of the downstream GCaMP3 fusion gene (see below for detailed description of GCaMP3). Because the CAG promoter driven reporter construct was targeted for insertion into the Gt(ROSA)26Sor locus, GCaMP3 expression is determined by which tissue(s) express Cre recombinase. When bred to mice that express Cre recombinase, the resulting offspring will have the STOP cassette deleted in the cre-expressing tissues; resulting in expression of the fluorescent calcium indicator protein, GCaMP3. The donating investigator reports that Ai38 mice do not express GCaMP3 prior to introduction of Cre recombinase. Following exposure to Cre recombinase, GCaMP3 expression (EGFP fluorescence) is detected in the cre-expressing tissues. In the absence of calcium binding, low EGFP fluorescence is reported. Following calcium binding (s ..... For more information please see the full phenotype on the strain data sheet | ||
| 014539 | B6;129S-Gt(ROSA)26Sortm39(CAG-HOP/EYFP)Hze/J | Repository- Live |
| Ai39 mice heterozygous for the Rosa-CAG-LSL-eNpHR3.0-EYFP-WPRE conditional allele are viable and fertile. A loxP-flanked STOP cassette prevents transcription of the downstream eNpHR3.0-EYFP fusion gene (see below for detailed description of eNpHR3.0-EYFP). Because the CAG promoter driven reporter construct was targeted for insertion into the Gt(ROSA)26Sor locus, eNpHR3.0-EYFP expression is determined by which tissue(s) express Cre recombinase. When bred to mice that express Cre recombinase, the resulting offspring will have the STOP cassette deleted in the cre-expressing tissues; resulting in expression of the eNpHR3.0-EYFP fusion protein. The donating investigator reports that Ai39 mice do not express eNpHR3.0-EYFP prior to introduction of Cre recombinase.
Fusion protein expression following exposure to cre can be detected by EYFP fluorescence and mRNA (in situ hybridization) [and presumably by antibody staining (immunohistochemistry); although this was ..... For more information please see the full phenotype on the strain data sheet | ||
| 010618 | B6;129S-Jag1tm2Grid/J | Repository- Live |
| These mice possess loxP sites on either side of exon 4, which encodes the DSL (Delta-Serrate-Lag2) domain, of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When these mutant mice are bred to mice that express Cre recombinase, resulting offspring will have exon 4 deleted in the cre-expressing tissue(s). The exon 4-deleted allele produces a nonfunctional JAG1 protein.
When bred to a strain with Cre recombinase expression during development in the telencephalon and discrete head structures, such as the otocyst (see Stock No. 006084 for example), this mutant mouse strain may be useful in studies of developmental inner ear defects. When bred to a strain with Cre recombinase expression in endothelial cells during embryogenesis and adulthood (see Stock No. For more information please see the full phenotype on the strain data sheet | ||
| 014541 | B6;129S-Nos1tm1.1(cre/ERT2)Zjh/J | Repository- Live |
| The nNOS-CreER-KI (or nNOS-CreERT2-KI) knock-in allele was designed to both abolish neuronal nitric oxide synthase 1 (Nos1) gene function and express CreERT2 fusion protein from the Nos1 promoter/enhancer elements. Cre-ERT2 fusion gene activity is inducible and can be observed following tamoxifen administration. As such, when nNOS-CreER-KI mice are bred with mice containing loxP-flanked sequences, tamoxifen-inducible Cre-mediated recombination will result in deletion of the floxed sequences in the Nos1-expressing cells of the offspring.
Heterozygous mice are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. The donating investigator reports that the phenotype of nNOS-CreER-KI homozygous mice has not been assessed. However, nNOS-CreER-KI homozygotes may be expected to exhibit the same phenotype as mice homozygous for other null mutations of this gene (abnormal neuron differentiation, increased ..... | ||
| 014181 | B6;129S-Prkd1tm1Eno/J | Repository- Live |
| These mice possess loxP sites flanking exons 12 through 14 of the targeted gene, which encode part of the catalytic domain. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When these mutant mice are bred to mice that express Cre recombinase, resulting offspring will have exons 12 through 14 deleted in the cre-expressing tissue(s).
When bred to a strain with Cre recombinase expression in cardiomyocytes (see Stock No. 011038 for example), this mutant mouse strain may be useful in studies of cardiac response and remodeling due to pathological stress. | ||
| 010686 | B6;129S-Snai1tm2Grid/J | Repository- Live |
| These mice possess loxP sites on either side of exons 2 and 3 of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When these mutant mice are bred to mice that express Cre recombinase, resulting offspring will have exon 2 and 3 deleted in the cre-expressing tissue(s). | ||
| 010987 | B6;129S-Sox18tm1(GFP/cre/ERT2)Pzg/J | Repository- Live |
| These Sox18-GCE mutant mice have a tamoxifen inducible Cre-mediated recombination system. A GFP-Cre/ERT2 cassette (GCE) was inserted into the Sox18, SRY-box containing gene 18, locus. Tamoxifen administration induces Cre recombination. Green fluorescence is detected in the kidneys and ovary of E15.5 heterozygous embryos. Cre recombinase activity is detected in the kidney from E15.5 heterozygous embryos. Mice that are heterozygous for the targeted mutation are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. Homozygotes are viable and fertile. This strain was transferred from the collection of the GenitoUrinary Development Molecular Anatomy Project (GUDMAP). | ||
| 007001 | B6;129S-Tg(UBC-cre/ERT2)1Ejb/J | Repository- Live |
| Mice hemizygous for this Cre-ERT2 transgene are viable and fertile. Mice from this founder line have strong tamoxifen-inducible cre activity in all reported tissue types. The Cre-ERT2 fusion protein consists of Cre recombinase fused to a triple mutant form of the human estrogen receptor; which does not bind its natural ligand (17β-estradiol) at physiological concentrations but will bind the synthetic estrogen receptor ligands 4-hydroxytamoxifen (OHT) and, with lesser sensitivity, ICI 182780. Restricted to the cytoplasm, Cre-ERT2 can only gain access to the nuclear compartment after exposure to OHT. To counteract the mixed estrogen agonist effects of tamoxifen injections, which can result in late fetal abortions in pregnant mice, progesterone may be coadministered. When these Cre-ERT2 mice are bred with mice containing a loxP-flanked sequence of interest, tamoxifen-inducible, Cre-mediated recombination will result in deletion of the flanked sequences in widespread cel ..... For more information please see the full phenotype on the strain data sheet | ||
| 009389 | B6;129S1-Bambitm1Jian/J | Repository- Live |
| Mice homozygous for this Bambiflox allele are viable and fertile, with loxP sites flanking exon 1 of the targeted gene. When bred to mice that express Cre recombinase, the resulting offspring will have the sequences encoding the endogenous signal peptide deleted in the cre-expressing tissue(s); this is expected to produce a null allele. These mutant mice may be useful in generating conditional mutations for studying the role of Bambi in developmental biology and the TGF-beta pathway. | ||
| 013543 | B6;129S1-Dnm3tm1.1Pdc/J | Repository- Live |
| These mice possess loxP sites on either side of exon 2 of the Dnm3 (dynamin 3) gene. Mice that are homozygous for this floxed allele are viable, fertile, and do not display any gross physical or behavioral abnormalities. When crossed with a Cre recombinase-expressing strain, this floxed strain is useful in eliminating expression of Dnm3 in a tissue-specific fashion. Following germline deletion, complete loss of expression has been documented in brain, lung and testis (sites of major expression) and resultant mice are healthy, viable and fertile. This strain may be useful in further characterizing the role of this gene. | ||
| 009388 | B6;129S1-Osr2tm2(cre)Jian/J | Repository- Live |
| Mice homozygous for the Osr2-IresCre (or Osr2IresCre) allele are viable and fertile, with an IRES-Cre bicistronic expression cassette inserted into the 3' UTR of the targeted locus. As such, cre expression is directed by the endogenous promoter/enhancer regions primarily to developing palate mesenchyme and metanephric mesenchyme-derived glomeruli tissues (but not other epithelial and mesenchymal tissues in the developing metanephric kidney). Some ectopic cre activity is reported (particularly in the central nervous system). When bred with mice containing a loxP-flanked sequence, Cre-mediated recombination will result in deletion of the floxed sequence in these tissues in the offspring. These Osr2-IresCre mice may be useful for generating conditional mutations for studying developmental biology (palate and kidney development). | ||
| 012463 | B6;129S4-Foxd1tm1(GFP/cre)Amc/J | Repository- Live |
| Heterozygous mice are viable and fertile, normal in size and do not display any gross physical or behavioral abnormalities. The DI states that the strain is homozygous lethal. The FoxD1GC allele expresses an eGFPCre fusion protein (EGFP and cre fusion protein) from the Foxd1 promoter/enhancer elements. When Foxd1 is induced, EGFP immunofluorescence is observed during kidney development in metanephric mesenchyme in cells fated to become stromal cells of the kidney. When FoxD1GC mice are bred with mice containing loxP-flanked sequence, Cre-mediated recombination will result in deletion of the floxed sequences in the Foxd1-expressing cells of the offspring. These mice may be useful for studying therapeutic strategies directly targeting pericyte differentiation in vivo and may productively impact fibrotic kidney disease. | ||
| 012464 | B6;129S4-Foxd1tm2(GFP/cre/ERT2)Amc/J | Repository- Live |
| Heterozygous mice are viable and fertile, normal in size and do not display any gross physical or behavioral abnormalities. The DI states that the strain is homozygous lethal. The Foxd1GCE allele expresses an eGFPCreERT2 fusion protein (EGFP and creERT2 fusion protein) from the Foxd1 promoter/enhancer elements. Foxd1 is induced, and EGFP immunofluorescence is observed, during kidney development in metanephric mesenchyme in cells fated to become stromal cells of the kidney. Cre-ERT2 fusion gene activity is inducible; observed in the same cells only following tamoxifen administration. When Foxd1GCE mice are bred with mice containing loxP-flanked sequence, tamoxifen-inducible, Cre-mediated recombination will result in deletion of the floxed sequences in the FoxD1-expressing cells of the offspring. These mice may be useful for studying therapeutic strategies directly targeting pericyte differen ..... For more information please see the full phenotype on the strain data sheet | ||
| 006414 | B6;129S4-Mc4rtm1Lowl/J | Repository- Live |
| The mice have a loxp-flanked transcriptional blocking (loxTB) sequence that prevents normal endogenous gene transcription and translation from the endogenous locus. As such, homozygous mice are devoid of functional mRNA in all tested regions of the brain. Homozygous mice exhibit severe early-onset obesity, accompanied by hyperphagia, increased snout-anus length and hyperinsulinemia. The function of this disrupted allele can be restored by the enzymatic activity of Cre-recombinase. These mutant mice may be useful in studies of neurobiology, obesity, diabetes, hunger/appetite, and fat and energy metabolism.
When bred to a strain expressing Cre recombinase in the hypothalamus see Stock No. 006395 for example), this mutant mouse strain exhibits as intermediate phenotype in comparison to homozygous null mice. | ||
| 010944 | B6;129S4-Socs3tm1Ayos/J | Repository- Live |
| Mice that are homozygous for the targeted mutation are viable, fertile and normal in size. When used in conjunction with a Cre recombinase-expressing strain, this strain is useful in generating tissue-specific mutants of the floxed allele. This mutant mouse strain may be useful in generating conditional mutations to study cytokine signaling, inflammatory responses, energy homeostasis and diabetes.
For example, when crossed to a strain expressing Cre recombinase in the myeloid cell lineage (see Stock No. 004781), this mutant mouse strain may be useful in studies of cytokine signalling and inflammation. When crossed to a strain expressing Cre recombinase in the central and peripheral nervous system (see Stock No. 003771), this mutant mouse strain may be useful in studies of leptin sensitivity and obesity. When crossed to a strain expressing Cre recombinase ..... | ||
| 014649 | B6;129S4-Yy1tm2Yshi/J | Repository- Live |
| These mice possess loxP sites on either side of exon 1 of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When these mutant mice are bred to mice that express Cre recombinase, resulting offspring will have exon 1 deleted in the cre-expressing tissue(s).
When crossed with mice that express Cre recombinase specifically in early B-cell progenitors, this mutant mouse strain may be useful in studies of B-cell maturation. | ||
| 009357 | B6;129S6-Adam10tm1Zhu/J | Repository- Live |
| These mice possess loxP sites on either side of exon 3 of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When bred to mice that express Cre recombinase, the resulting offspring will have this region deleted in the cre-expressing tissues. When bred to a strain expressing Cre recombinase in T cells for example(see Stock No. 003802), this mutant mouse strain may be useful in studies related to thymocyte developmental defects. | ||
| 006410 | B6;129S6-Chattm1(cre)Lowl/J | Repository- Live |
| Homozygous mice maintained at The Jackson Laboratory are viable and fertile. An "IRES-Cre" sequence is inserted downstream of the stop codon such that cre expression is controlled by the endogenous Chat gene promoter. Chat gene expression, however, is unaffected. Cre recombinase activity is reported in all cholinergic neurons. These mice may be useful for "Cre-lox" technology applications in neurobiology, including studies of motor function, learning and memory, Alzheimer's disease, and Down syndrome, and in obesity and diabetes research.
View cre expression characterization. | ||
| 007908 | B6;129S6-Gt(ROSA)26Sortm14(CAG-tdTomato)Hze/J | Repository- Live |
| Ai14 mice hemizygous for this Rosa-CAG-LSL-tdTomato-WPRE::deltaNeo conditional allele are viable and fertile. A loxP-flanked STOP cassette prevents transcription of the downstream red fluorescent protein variant (tdTomato). When bred to mice that express Cre recombinase, the resulting offspring will have the STOP cassette deleted in the cre-expressing tissue(s); resulting in expression of tdTomato. Because this CAG promoter driven reporter construct was targeted for insertion into the Gt(ROSA)26Sor locus, tdTomato expression is determined by which tissue(s) express Cre recombinase. Ai14 mice are not expected to express tdTomato prior to introduction of Cre recombinase and tdTomato expression following exposure to cre is expected to be detectable by fluorescence and mRNA (in situ hybridization). These Ai14 mice are useful as a Cre reporter strain; expressing the red fluorescent protein variant, tdTomato, following Cre-mediated recombination.
The Allen I ..... | ||
| 007905 | B6;129S6-Gt(ROSA)26Sortm9(CAG-tdTomato)Hze/J | Repository- Live |
| Ai9 mice hemizygous for this Rosa-CAG-LSL-tdTomato-WPRE conditional allele are viable and fertile. A loxP-flanked STOP cassette prevents transcription of the downstream red fluorescent protein variant (tdTomato). When bred to mice that express Cre recombinase, the resulting offspring will have the STOP cassette deleted in the cre-expressing tissue(s); resulting in expression of tdTomato. Because this CAG promoter driven reporter construct was targeted for insertion into the Gt(ROSA)26Sor locus, tdTomato expression is determined by which tissue(s) express Cre recombinase. The donating investigator reports that Ai9 mice do not express tdTomato prior to introduction of Cre recombinase and tdTomato expression following exposure to cre can be detected by fluorescence and mRNA (in situ hybridization). Of note, the FRT sites flanking the mutation allow for additional targeted replacement of the reporter sequences through Flp-mediated recombination if ..... For more information please see the full phenotype on the strain data sheet | ||
| 012362 | B6;129S6-Tg(Camk2a-cre/ERT2)1Aibs/J | Repository- Live |
| Mice hemizygous for the Camk2a-CreERT2 transgene are viable and fertile, with expression of CreERT2 fusion protein (CreERT2 fusion protein) directed to neural populations by the mouse calcium/calmodulin-dependent protein kinase II alpha promoter region. Cre-ERT2 fusion gene activity is inducible; observed at high levels following tamoxifen administration. When Camk2a-CreERT2 transgenic mice are bred with mice containing loxP-flanked sequences, tamoxifen-inducible Cre-mediated recombination will result in deletion of the floxed sequences in the Camk2a-expressing cells of the double mutant offspring. Specifically, the donating investigator reports that the Camk2a-CreERT2 transgene directs reporter gene expression in sparse populations of neurons in the cortex, hippocampus, striatum, and other structures in the absence of tamoxifen. Following tamoxifen administration, reporter gene expression is turned on in widespread populations of neurons in the same regions ..... For more information please see the full phenotype on the strain data sheet | ||
| 012604 | B6;129S7-Lrp1tm2Her/J | Repository- Live |
| These LRPflox/flox mutant mice possess a floxed Neo cassette and a single loxP sites downstream of exon 2 of the targeted low-density lipoprotein (LDL) receptor-related protein (LRP) 1 gene, Lrp1. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When these mutant mice are bred to mice that express Cre recombinase, the resulting offspring will have exons 1 and 2 deleted in the cre-expressing tissue, resulting in inactivation of Lrp1 gene function. This strain may be useful for studying physiological role of LRP in the uptake of cholesterol-rich lipoproteins from circulation and in maintenance of plasma lipid homeostasis. | ||
| 011039 | B6;129S7-Map3k7tm1Mds/J | Repository- Live |
| These mice carry a floxed allele of Map3k7 (mitogen-activated protein kinase kinase kinase 7). When bred to mice expressing cre recombinase, exon 1 of the targeted gene is deleted in the cre-expressing tissues of the offspring. This strain may be useful in studies of Wolff-Parkinson-White syndrome, electrophysiological and biochemical properties of the heart.
For example, when crossed to a strain expressing Cre recombinase in cardiac muscle cells (see Stock No. 011038), this mutant mouse strain may be useful in studies of cell metabolism. | ||
| 014638 | B6;129X1-Cldn6tm1(cre/ERT2)Dam/J | Repository- Live |
| In this strain, the Cldn6CIHV allele replaces the entire coding region of the claudin 6 (Cldn6) locus with a CreERT2 fusion protein, an internal ribosome entry site (IRES), and a histone H2B-Venus fluorescent protein. This abolishes gene expression. Homozygotes are viable, fertile, normal in size, and do not display any gross physical or behavioral abnormalities. CLDN6 is a structural protein involved in tight junction formation, with a functional role in the epidermal permeability barrier. In this strain endogenous Cldn6 promoter/enhancer regions drive Cre-ERT2 expression and Venus immunofluorescence in embryonic endoderm during organogenesis. Cre-ERT2 fusion gene activity is inducible and only observed following tamoxifen administration. When Cldn6CIHV mice are bred with mice containing loxP-flanked sequence, tamoxifen-inducible, Cre-mediated recombination will result in deletion of t ..... For more information please see the full phenotype on the strain data sheet | ||
| 008467 | B6;129X1-Wnt7btm2Amc/J | Repository- Live |
| Mice homozygous for the Wnt7bc3 allele are viable and fertile, with loxP sites flanking exon 3 of the targeted gene. When bred to mice that express Cre recombinase, the resulting offspring will have this region deleted in the cre-expressing tissue(s). Unlike other Wnt7b mutant alleles, this Wnt7bc3 conditional allele is not affected by alternative exon 1 splicing. These Wnt7bc3 mice may be useful in generating conditional mutations for studying the role of Wnt7b (and other Wnt family members) in development and canonical Wnt signaling cascades, including lung differentiation and growth. In addition, these mice may also be useful in conjunction with other Wnt7 mutant strains including Wnt7b knockout mice (Stock No. 004693) and Wnt7a mutant mice (Stock No. 004715).
When bred to a strain expressing Cre recom ..... | ||
| 012433 | B6;C3-Tg(ACTA1-rtTA,tetO-cre)102Monk/J | Repository- Live |
| These transgenic mice have a tetracycline (doxycycline) inducible Cre-mediated recombination system that is specific for skeletal muscle myocytes. Two transgenic constructs were coinjected to generate this strain. The first transgene contains cre recombinase under the control of the tetO, tetracycline-responsive regulatory element and a second transgenic construct contains the reverse tetracycline-controlled transactivator, rtTA (Tet-On), under the control of the human ACTA1, actin, alpha 1, skeletal muscle promoter. Mice hemizygous for the transgenic inserts are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. Cre mRNA expression is detected in mice treated with doxycycline (dox) specifically in limb muscle. In the absence of dox, very weak Cre mRNA expression is detected in skeletal muscle. When crossed with a reporter strain, inducible Cre recombinase activity is restricted to skeletal muscle tissues. Slight Cre ..... For more information please see the full phenotype on the strain data sheet | ||
| 008605 | B6;C3-Tg(CAG-DsRed,-EGFP)5Gae/J | Repository- Live |
| Hemizygous IRG transgenic mice are viable and fertile, with widespread expression of a loxP-flanked optimized red fluorescent protein variant (DsRed-Express) directed to embryonic and adult tissues by the CAG promoter prior to exposure to Cre recombinase. When bred to cre-expressing mice, the resulting offspring have the DsRed-Express cassette deleted in the cre-expressing tissue(s), allowing expression of the enhanced green fluorescent protein (EGFP) cassette located just downstream. These IRG transgenic mice are a double-fluorescent, Cre-reporter strain; with widespread expression of red fluorescence prior to Cre recombinase exposure, and green fluorescence following cre-mediated recombination in a pattern determined by cre expression, and should provide a versatile tool for analyzing complex cellular relationships in a wide variety of tissues. For example, when using IRG transgenic mice along with Nestin-Cre mice (see Stock No. For more information please see the full phenotype on the strain data sheet | ||
| 009613 | B6;C3-Tg(Scnn1a-cre)3Aibs/J | Repository- Live |
| Hemizygous Scnn1a-Tg3-Cre mice are viable and fertile, with cre expression directed to cortex, thalamus, midbrain, and cerebellum by the Scnn1a promoter/enhancer regions within the BAC transgene. The donating investigators may not have assessed expression in tissues other than brain. When bred with mice containing a loxP-flanked sequence of interest, Cre-mediated recombination will result in deletion of the floxed sequence(s) in the offspring. These Scnn1a-Tg3-Cre mice may be useful for generating conditional mutations for studying gain or loss of function and/or fate mapping in subgroups of brain tissues (including cortex, thalamus, midbrain, and cerebellum).
For characterization information, see images at the Allen Institute for Brain Science website (Scnn1a-Tg3-Cre images). | ||
| 009103 | B6;C3-Tg(Wfs1-cre/ERT2)3Aibs/J | Repository- Live |
| Hemizygous Wfs1-Tg3-CreERT2 mice are viable and fertile. As the Cre-ERT2 fusion gene is under control of the Wfs1 promoter/enhancer regions within the BAC transgene, cre activity is directed to cortex, hippocampus, striatum, thalamus and cerebellum only following tamoxifen administration. The donating investigators may not have assessed expression in tissues other than brain. The Cre-ERT2 fusion protein consists of Cre recombinase fused to a triple mutant form of the human estrogen receptor; which does not bind its natural ligand (17β-estradiol) at physiological concentrations but will bind the synthetic estrogen receptor ligands 4-hydroxytamoxifen (OHT or tamoxifen) and, with lesser sensitivity, ICI 182780. Restricted to the cytoplasm, Cre-ERT2 can only gain access to the nuclear compartment after exposure to tamoxifen. To counteract the mixed estrogen agonist effects of tamoxifen injections, which can result in late fetal abortions in pregnant mice, progesterone ma ..... For more information please see the full phenotype on the strain data sheet | ||
| 014647 | B6;CBA-Tg(Pdx1-cre)6Cvw/J | Repository- Live |
| Mice hemizygous for the transgenic insert are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. These transgenic mice express Cre recombinase under the control of the mouse Pdx1 (pancreatic and duodenal homeobox 1) promoter. Mosaic Cre recombinase activity is detected in the pancreatic epithelium, antral stomach and duodenum in neonates and in pancreatic beta islet cells in adults. No Cre recombinase activity is detected ectopically to the Pdx1 expression domain. When crossed with a strain containing loxP site-flanked sequences, Cre-mediated recombination results in deletion of the floxed sequences in the cre-expressing tissues of the offspring. It is not known if homozygotes are viable. | ||
| 007910 | B6;CBA-Tg(Thy1-Brainbow1.0)LLich/J | Repository- Live |
| These Thy1-Brainbow 1.0 (line L) transgenic mice are viable and fertile. The mice possess multiple fluorescent protein sequences uniquely flanked with pairs of incompatible Lox sites alternated to create mutually exclusive recombination events; allowing stochastic expression of multiple fluorescent proteins from a single transgene. Prior to Cre-mediated recombination, the fluorescent protein immediately adjacent to the promoter, dTomato (RFP), is expressed in peripheral and central neurons. When bred to Cre recombinase expressing mice, the resulting offspring can have one of three expression outcomes for each transgene in each cell of the cre expressing tissue(s): dTomato (RFP) (no recombination), mCerulean (CFP), or mYFP. Integration of tandem transgene copies yields combinatorial fluorescent protein expression in each cell, and thus many possible cell colors, providing a way to distinguish adjacent neurons and visualize other cellular interactions. Of note, the singl ..... For more information please see the full phenotype on the strain data sheet | ||
| 014160 | B6;DBA-Tg(S100b-EGFP/cre/ERT2)22Amc/J | Repository- Live |
| These transgenic mice express the eGFPCreERT2 (Enhanced Green Fluorescent Protein and cre/ESR1) fusion gene under the direction of the mouse S100b, S100 protein, beta polypeptide, neural, promoter. Transgene expression is detected in chondrocytes in developing bone and in neural cells in the dorsal root ganglia (DRG). GFP fluorescence is not detectable by fluorescent microscope examination of whole embryos, bones or neural tube sagittal slices from embryos aged 15.5dpc. Tamoxifen induced Cre recombinase activity is detected in a subset of the GFP immunoreactive-positive cells in bone and to a lesser extent in the dorsal root ganglia. GFP immunoreactive-positive cells co-localize with S100b immunoreactive-positive cells in bone and DRG. Other possible sites of expression have not been characterized. Mice that are hemizygous for the transgene are viable, fertile, normal in size and do not display physical or behavioral abnormalities. This strain was transfe ..... For more information please see the full phenotype on the strain data sheet | ||
| 014159 | B6;DBA-Tg(Tmem100-EGFP/cre/ERT2)30Amc/J | Repository- Live |
| These transgenic mice express the eGFPCreERT2 (Enhanced Green Fluorescent Protein and cre/ESR1) fusion gene under the direction of the mouse Tmem100, transmembrane protein 100, promoter. Transgene expression is detected in developing nephrons of the kidney, Wolfian and Mullerian ducts and vasculature of the urogenital system of hemizygous 15.5 dpc embryos. GFP fluorescence is detected in embryos 15.5dpc in age in the proximal region of the early renal vesicle, at later stages eGFP is present in the parietal epithelium adjacent to Wilms Tumor (WT1) positive cells demarcating the future podocytes of Bowman's capsule and is limited to the Tmem100 expression domain. Tamoxifen inducible Cre recombinase activity is detected in the developing kidney (nephrogenic zone), vasculature and Wolfian or Mullerian duct of mutant embryos aged 15.5dpc. Possible cre recombinase activity is detected in small renal arteries. Other possible sites of expression have not been char ..... For more information please see the full phenotype on the strain data sheet | ||
| 010803 | B6;FVB-Tg(Adipoq-cre)1Evdr/J | Repository- Live |
| Mice hemizygous for this Adipoq-Cre BAC transgene are viable and fertile, with expression of a Cre recombinase directed to adipose tissue by the promoter/regulatory regions of the mouse adiponectin (Adipoq) locus on the BAC transgene. Transcription/translation from the BAC Adipoq locus is disabled, and Cre recombinase expression levels are similar to that of endogenous Adipoq expression. These mice express Cre recombinase effectively in white adipose tissue (WAT) and brown adipose tissue (BAT), but not in macrophages (including adipose-tissue resident macrophages, alveolar macrophages, or thioglycollate-stimulated peritoneal macrophages). The donating investigator reports highly efficient Cre recombinase activity, with no ectopic expression. The phenotype of homozygous mice was not determined by the donating investigator. These Adipoq-Cre BAC transgenic mice may be useful in generating conditional mutations for studying adipose tissue function and storage, obesity, ..... For more information please see the full phenotype on the strain data sheet | ||
| 012944 | B6;SJL-Il6ratm1.1Drew/J | Repository- Live |
| These Il6rafl/fl mutant mice possess loxP sites flanking exons 4-6 of the interleukin 6 receptor alpha chain (Il6ra) gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When bred to mice that express tissue-specific Cre recombinase, resulting offspring lack detectable Il6ra in the cre-expressing tissues. This strain may be useful for studying the role of Il6 in immune response, re-epithelialization, angiogenesis, macrophage infiltration, and wound healing.
For example, when bred to a strain expressing Cre recombinase in the myeloid cell lineage (see Stock No. 004781 for example), this mutant mouse strain may be useful in studies of inflammation and wound healing. When bred to a strain expressing Cre recombinase in liver (see Stock No. For more information please see the full phenotype on the strain data sheet | ||
| 005249 | B6;SJL-Tg(Krt1-15-cre/PGR)22Cot/J | Repository- Live |
| Mice hemizygous for the transgenic insert are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. These transgenic mice have a synthetic steroid RU 486 inducible Cre-mediated recombination system driven by the mouse keratin complex 1, acidic, gene 15 promoter. The transgene insert contains a fusion product involving Cre recombinase and a mutant form of the human progesterone receptor. The mutant human progesterone receptor does not bind natural ligand at physiological concentrations but will bind the synthetic ligand, RU 486. Restricted to the cytoplasm, the Cre/PGR protein can only gain access to the nuclear compartment after exposure to RU 486. When crossed with a strain containing a loxP site flanked sequence of interest, the offspring are useful for generating RU 486-induced, Cre-mediated targeted deletions. This strain represents an effective tool for generating tissue-specific targeted mutants that would be useful to study epi ..... For more information please see the full phenotype on the strain data sheet | ||
| 013094 | B6;SJL-Tg(Sox10-cre)507Mcln/J | Repository- Live |
| Mice hemizygous for the S4F:cre transgene are viable and fertile, containing the SRY-box containing gene 10 (Sox10) promoter and a c-Fos minimal promoter sequence directing expression of Cre recombinase predominantly to neural crest derived cells. Specifically, Cre recombinase expression is observed in craniofacial skeletal components, sympathetic and parasympathetic neuronal/glial populations as well as epidermal melanocyte precursors. Expression is also evident in non-neural crest derived tissues including oligodendrocytes and the ventral neural tube. When these transgenic mice are bred with mice containing a loxP-flanked sequence, Cre-mediated recombination is expected to result in deletion of the floxed sequences in the Cre recombinase-expressing tissues of the offspring. These mice may be important for lineage tracing, gene function characterization, and genome manipulations. | ||
| 007610 | B6;SJL-Tg(Thy1-cre/ERT2,-EYFP)VGfng/J | Repository- Live |
| These transgenic mice ("SLICK" for single-neuron labeling with inducible Cre-mediated knock-out) have a tamoxifen inducible Cre-mediated recombination system and Enhanced Yellow Fluorescent Protein driven by 2 bidirectional copies of the mouse thymus cell antigen 1 promoter. Hemizygotes are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. The Donating Investigator has not attempted to make the strain homozygous. When crossed with a strain containing a loxP site flanked sequence of interest, the offspring are useful for generating tamoxifen-induced, Cre-mediated targeted neuron-specific deletions only in neurons where the Thy1 is active. These cells will be evident by the expression of Yellow Fluorescent Protein. Transgenic mice express YFP constitutively in neurons. The Donating Investigator reports that founder line V mice express the transgene sparsely in neurons of the central nervous system.
This strain is one of ..... | ||
| 012457 | B6N.129-Ptch1tm1Hahn/J | Repository- Live |
| These Ptchflox mutant mice possess loxP sites flanking exons 8-9 of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When these mutant mice are bred to mice that express Cre recombinase, resulting offspring will have exons 8-9 deleted in the cre-expressing tissue. The donating investigator reports that the frt-flanked neo cassette is still present downstream of the floxed exon that the presence of neo does not convey any abnormalities. This strain may be useful for studying Hedgehog/Patched signaling, cell-fate determination during embryogenesis, cell growth and differentiation, and development of T- and B-lymphoid lineages, hematopoietic stem cell diversification. | ||
| 003465 | BALB/c-Tg(CMV-cre)1Cgn/J | Repository- Live |
| In this transgenic strain, deletion of loxP-flanked genes occurs in all tissues, including germ cells. The cre gene in this strain is under the transcriptional control of a human cytomegalovirus minimal promoter and is likely to be expressed before implantation during early embryogenesis. It also appears that the cre gene is X-linked since transgene transmission through males is restricted to female offspring. As these cre-transgenic mice are on a BALB/c background, they are ideally suited for breeding with gene-targeted mutant mice that have been created using the BALB/c-derived ES cell line BALB/c-I.
View cre expression characterization. | ||
| 012641 | BALB/c-Tg(S100a4-cre)1Egn/YunkJ | Repository- Live |
| These transgenic mice express Cre recombinase under the control of the mouse S100a4, S100 calcium binding protein A4, promoter. Cre recombinase expression is detected specifically in stromal fibroblasts of tissues such as the prostate, forestomach, mammary gland. Mice that are homozygous for the transgene are viable, normal in size and do not display any gross physical or behavioral abnormalities. | ||
| 009670 | C.129P2(B6)-Gt(ROSA)26Sortm1(DTA)Lky/J | Repository- Live |
| Homozygotes are viable, fertile and do not display any gross physical or behavioral abnormalities. When these ROSA-DTA mice are crossed with a Cre recombinase strain, the floxed-STOP cassette is deleted and the Gt(ROSA)26Sor promoter drives expression of diptheria toxin in the cre-expressing cells. These ROSA-DTA mice allow selective ablation in a tissue/cell-specific manner.
Of note, ROSA-DTA mice are also available on a C57BL/6 congenic background (see Stock No. 009669). | ||
| 008603 | C.129P2(B6)-Gt(ROSA)26Sortm1(tTA)Roos/J | Repository- Live |
| Mice heterozygous for the ROSA:LNL:tTA conditional mutation of the Gt(ROSA)26Sor locus are viable and fertile, with a loxP-flanked STOP cassette preventing transcription of a downstream optimized/modified tetracycline-controlled transactivator protein ("mtTA"). Applying both Cre-lox and Tet-Off technologies, these ROSA:LNL:tTA mutant mice may be useful to generate compound mutant mice in which expression of a tetracycline-responsive promoter element (TRE; also called tet-operator or tetO)-driven gene of interest can be both directed to the cell types defined by the chosen Cre recombinase expression, as well as turned off by the addition of tetracycline (or its analog doxycycline (dox)).
In an attempt to offer alleles on well-characterized or multiple genetic backgrounds, alleles are frequently moved to a genetic background different from that on which an allele was first characterized. It should be noted that the phenotype could vary from that originally describe ..... | ||
| 004126 | C.Cg-Cd19tm1(cre)Cgn Ighb/J | Repository- Live |
| The Cd19 promoter specifically directs expression at the earliest stages and throughout B-lymphocyte development and differentiation. A Cre cassette is inserted into the Cd19 exon 2, functionally disrupting the gene. Homozygous mice are Cd19-deficient, whereas heterozygous mice are phenotypically normal and can be used for specific deletion of floxed targets in B-lymphocytes. Mice that are homozygous deficient for Cd19 are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. A deficiency in the B-1 subset of B-lymphocytes is observed along with a concomitant reduction in serum IgM. Homozygous mice are severely impaired in their ability to respond to T-cell-dependent antigens and fail to form splenic germinal centers. | ||
| 009045 | C57BL/6-Apctm1Tyj/J | Repository- Live |
| Mice that are homozygous for the conditional allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. The 15 coding exons are flanked by loxP sites. Germline heterozygous deletion of the floxed region results in a tumor-prone mouse similar to ApcMin animals (see Stock No. 002020). Homozygous germline deletion mice are not viable. This mutant mouse strain is useful for studies of this tumor suppressor gene and serves as a mouse model of colon cancer. | ||
| 008817 | C57BL/6-Arg1tm1Pmu/J | Repository- Live |
| These mice possess loxP sites on either side of exons 7 and 8 of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When these mutant mice are bred to mice that express Cre recombinase, resulting offspring will have exons 7 and 8 deleted in the cre-expressing tissue(s).
When bred to a strain with inducible Cre recombinase expression in the myeloid cell lineages (see Stock No. 004781, for example) or endothelial cells (see Stock No. 004128 , for example), this mutant mouse strain may be useful in studies of immune response to bacterial and parasitic infections. | ||
| 007900 | C57BL/6-Gt(ROSA)26Sortm1(HBEGF)Awai/J | Repository- Live |
| Mice homozygous for this iDTR mutation are viable and fertile. These mice have the simian Diphtheria Toxin Receptor (DTR; from simian Hbegf) inserted into the Gt(ROSA)26Sor (ROSA26) locus. Widespread expression of DTR is blocked by an upstream loxP-flanked STOP sequence. When bred to Cre recombinase-expressing mice, the STOP sequence is deleted in tissues where Cre is present, permitting DTR expression. Cells expressing DTR are rendered susceptible to ablation following Diphtheria toxin administration.
For example, when bred to a strain with a Cd19 null allele and expressing Cre recombinase during the B lymphocyte development (Stock No. 006785), this mutant mouse strain may be useful in studies of lymphocyte cell ablation. When crossed to a strain expressing Cre recombinase in oocytes (see Stock No. 011062), this mutant mouse strain ma ..... | ||
| 008517 | C57BL/6-Gt(ROSA)26Sortm3(CAG-MIR17-92,-EGFP)Rsky/J | Repository- Live |
| Mice homozygous for the "miR-17-92 transgene" conditional allele are viable and fertile, with a loxP-flanked Neo-STOP cassette preventing transcription of the downstream bicistronic sequences (human miR-17-92 cluster (encoding the precursor of seven miRNA molecules; miR-17-5p, miR-17-3p, miR-18a, miR-19a, miR-20a, miR-19b and miR-92) and EGFP). When bred to mice that express Cre recombinase, the resulting offspring will have the STOP cassette deleted in the cre-expressing tissue(s); resulting in expression of the human miR-17-92 cluster. Because the synthetic CAG promoter driven miR-17-92 transgene was targeted for insertion into the Gt(ROSA)26Sor locus, expression of the transgene is determined by which tissue(s) express Cre recombinase. EGFP fluorescence, however, is not reported following exposure to Cre recombinase (presumably due to RNaseIII excision of the stem-loop structures encoding individual miRNA destabilizing the EGFP portion of the primary transcript ..... For more information please see the full phenotype on the strain data sheet | ||
| 012343 | C57BL/6-Gt(ROSA)26Sortm7(Pik3ca*,EGFP)Rsky/J | Repository- Live |
| Mice homozygous for the R26StopFLP110* conditional allele (also called P110*-transgene) are viable and fertile, with a loxP-flanked Neo-STOP cassette preventing transcription of the downstream bicistronic sequences (P110* [a constitutively active form of the mouse catalytic P110α subunit of phosphatidylinositol 3-kinase] and EGFP). When bred to mice that express Cre recombinase, offspring will have the STOP cassette deleted and subsequent expression of the P110* signal molecule and EGFP fluorescence in the cre-expressing cells. Expression of P110* leads to constitutively active PIK3 heterodimer activity; resulting in the generation of downstream effectors that mediate signal transduction cascades that control cell survival and cell cycle progression (growth, and proliferation). Of note, breeding these mice to an FLP-expressing strain will result in removal of the frt-flanked IRES-EGFP cassette. | ||
| 012352 | C57BL/6-Gt(ROSA)26Sortm8(Map2k1*,EGFP)Rsky/J | Repository- Live |
| Mice homozygous for the R26StopFLMEK1DD conditional allele are viable and fertile, with a loxP-flanked Neo-STOP cassette preventing transcription of the downstream bicistronic sequences (MEK1DD [a mutant form of rat MAPKK1 rendered constitutively active by two serine->aspartic acid substitutions (S218D/S222D) within the catalytic domain] and EGFP). When bred to mice that express Cre recombinase, offspring will have the STOP cassette deleted and subsequent expression of the MEK1DD signal molecule and EGFP fluorescence in the cre-expressing cells. Expression of MEK1DD leads to constitutive activity of MAP Kinase signal transduction pathways that mediate various cellular activities, including gene expression, mitosis, differentiation, proliferation, cell survival, and cell cycle progression. Of note, breeding these mice to an FLP-expressing strain will result in removal of the frt-flanked IRES-EGFP cassette. | ||
| 012361 | C57BL/6-Gt(ROSA)26Sortm9(Rac1*,EGFP)Rsky/J | Repository- Live |
| Mice homozygous for the R26StopFLRACDA conditional allele are viable and fertile, with a loxP-flanked Neo-STOP cassette preventing transcription of the downstream bicistronic sequences (RACDA [RacG12V; a mutant form of Rac1 rendered constitutively active by a glycine->valine substitution at amino acid 12] and EGFP). When bred to mice that express Cre recombinase, offspring will have the STOP cassette deleted and subsequent expression of the RACDA signal molecule and EGFP fluorescence in the cre-expressing cells. Expression of RACDA leads to constitutive activity of Rac1-dependent signal transduction; which is associated with gene expression, proliferation, cell survival, cell cycle progression, cytoskeletal reorganization, and Rho- and CDC42-pathways. Of note, breeding these mice to an FLP-expressing strain will result in removal of the frt-flanked IRES-EGFP cassette. | ||
| 008309 | C57BL/6-Rag2tm1Cgn/J | Repository- Live |
| Mice homozygous for the RAG-2fl allele are viable and fertile, with loxP sites flanking exon 3 of the targeted gene. When bred to mice that express Cre recombinase, the resulting offspring will have this region (coding for the entire RAG-2 protein) deleted in the cre-expressing tissue(s). These RAG-2fl mice may be useful in generating conditional mutations for studying the role of RAG-2 in B and T cell development (including cancer and toxicology research as a xenograft/transplant host), T and B cell receptor (V(D)J) recombination, hematopoiesis, hematology, immunology, and inflammation research. For example, when bred to a strain with inducible Cre recombinase expression in liver and lymphocytes (see Stock No. 003556), this mutant mouse strain may be useful in studies of B and T cell development. | ||
| 009369 | C57BL/6-Zbtb7btm1.1Litt/J | Repository- Live |
| These mice possess loxP sites on either side of exons 2 and 3 of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When crossed with a Cre recombinase-expressing strain, this strain is useful in eliminating tissue-specific expression of the gene.
Deletion in CD4+CD8+ thymocytes (through crosses to a Cd4-cre strain) or germline deletion (through EIIa-cre crosses; see Stock No. 003724) causes mice to lose helper T cells. This strain may be useful in studies of T cell lineage commitment. | ||
| 010712 | C57BL/6-Tg(Camk2a-tTA)1Stl/J | Repository- Live |
| When these transgenic mice are crossed with a tissue or cell-specific cre strain to remove a floxed stop cassette, tetracycline-controlled transactivator (tTA) is expressed in hippocampal CA3 and the dentate gyrus under the control of the calcium/calmodulin-dependent protein kinase II alpha (Camk2a) promoter. When further mated to a transgenic strain that carries a gene of interest driven by a tetracycline-responsive promoter element (TRE; tetO), expression of that gene can be conditionally regulated by the presence or absence of doxycycline in the drinking water. Expression in tTA/tetO animals can be reversibly inhibited by the presence of doxycycline or induced by withdrawal of the tetracycline analog. | ||
| 016097 | C57BL/6-Tg(Car1-cre)5Flt/J | Repository- Live |
| These transgenic mice express Cre recombinase under the control of the mouse Car1, carbonic anhydrase 1, promoter. Transgenic transcript is detected in the tissues of the large intestine (cecum, proxmial and distal colon) by RT-PCR. Low levels of transcript are detected in the liver, and no transgene transcript is detected in kidney, stomach, bone marrow, prostate, lung, thymus, liver hear, duodenum, jejunum, ileum, pancreas, spleen. Mosaic recombinase activity is detected as early as 14.5 dpc in approximately 15% of the epithelial cells of the large intestine and is observed in individual crypts from the base to lumen. When crossed with a strain containing loxP site-flanked sequences, cre-mediated recombination results in large intestine epithelial-specific deletion of the flanked sequences in the offspring. Mice that are homozygous for the transgene are viable, normal in size and do not display any gross physical or behavioral abnormalities. | ||
| 011086 | C57BL/6-Tg(Cck-cre)CKres/J | Repository- Live |
| A minimal Cck (cholecystokinin) promoter drives expression of Cre in this transgenic strain. These mice express Cre at high levels in the brain cortex in a pattern that is qualitatively similar to that of the wildtype Cck gene. There is virtually no expression in subcortical regions. Although a component of the transgene, DsRed2 is not expressed. This strain may be useful for various psychiatric and neuroscience studies of this neuropeptide promoter. | ||
| 008766 | C57BL/6-Tg(Cd8a-cre)1Itan/J | Repository- Live |
| Hemizygous mice are viable, fertile, normal in size, and do not display any gross physical or behavioral abnormalities. Cre activity is observed in peripheral CD8+ T cells (CD8 α+CD8β+ αβT cells and CD8α+CD8β- αβT cells, but not in CD4+CD8α-CD8β- αβT cells). When bred with a mouse containing a loxP site-flanked sequence of interest, Cre-mediated recombination results in deletion of the flanked genome in cells that normally express Cd8a. | ||
| 006474 | C57BL/6-Tg(Grik4-cre)G32-4Stl/J | Repository- Live |
| Mice hemizygous for this "G32-4" transgene are viable, fertile, and do not display any gross physical or behavioral abnormalities. Transgene expression (cre activity) is detectable at 14 days old in area CA3 of the hippocampus, and at 8 weeks of age, recombination is observed in nearly 100% of pyramidal cells in area CA3. Recombination is also observed in other brain areas, but at distinctly lower frequencies. If bred with mice containing a loxP-flanked sequence of interest, tissue-specific deletion of that sequence results in the offspring. Specifically, when these mice were bred with a conditional CaMKII allele (see Stock No. 006575), the resulting offspring exhibited altered neurotransmitter release. The donating investigator reports that G32-4 females may confer global Cre-mediated deletion of loxP-flanked sequences in some offspring, and recommend using male G32-4 mice exclusively for such trials. These C ..... For more information please see the full phenotype on the strain data sheet | ||
| 012906 | C57BL/6-Tg(Nes-cre/Esr1*)1Kuan/J | Repository- Live |
| Mice homozygous for the nestin-CreER transgene are viable and fertile, with the rat nestin enhancer/hsp68 minimal promoter directing expression of a tamoxifen-inducible Cre recombinase (Cre-ERT1). This Cre-ERT1 fusion protein is estrogen insensitive, and is only active when it binds the estrogen analog 4-hydroxytamoxifen (OHT or tamoxifen). Following tamoxifen administration, Cre recombinase activity is reported in adult neural progenitors in the subventricular zone (SVZ), perinatal SVZ glioblasts, embryonic neural progenitors, and postnatally transformed radial glial cells. When these nestin-CreER transgenic mice are bred with mice containing a loxP-flanked sequence, tamoxifen-inducible Cre-mediated recombination is expected to result in deletion of the floxed sequences in the Cre recombinase-expressing tissues of the offspring. These mice may be useful for studying embryonic and adult neurogenesis.
The Cre-ERT1 fusion protein consists of Cre recombinase f ..... | ||
| 013148 | C57BL/6-Tg(Pdgfra-cre)1Clc/J | Repository- Live |
| Hemizygous Pdgfra-cre mice are viable and fertile, with cre expression directed to retinal Muller glial cells by the mouse Pdgfra (platelet derived growth factor receptor, alpha polypeptide) promoter. Expression is predominantly in the cell bodies of the inner nuclear layer (INL) of the retina, but some expression may be observed in the outer nuclear layer (ONL) and in the ganglion cell layer (GCL). The donating investigator indicates that although not examined, cre may also be active in many types of central nervous system glial cells. When bred with mice containing a loxP-flanked sequence of interest, Cre-mediated recombination will result in deletion of the floxed sequence(s) in the offspring. | ||
| 008535 | C57BL/6-Tg(Pf4-cre)Q3Rsko/J | Repository- Live |
| These transgenic mice express a codon-improved Cre recombinase (iCre) under the control of the mouse Pf4 (platelet factor 4), or Cxcl4, promoter. Cre recombinase expression is detected in the majority of megakaryocytes. Mice homozygous for the transgenic insert are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. The BAC clone used to generate this strain also contains 4 other genes: Cxcl5, Cxcl7, Cxcl15 and Cxcl3. The additional copy of these chemokine genes in the BAC has no effect on blood count of the mutant mice. This strain represents an effective tool for generating megakaryocyte lineage-restricted specific-targeted mutants. | ||
| 003651 | C57BL/6-Tg(Zp3-cre)93Knw/J | Repository- Live |
| This is a transgenic line in which cre expression is controlled by the regulatory sequences from the mouse zona pellucida 3 (Zp3) gene. This promoter normally directs expression exclusively in the growing oocyte prior to the completion of the first meiotic division. This strain would be useful for deleting a floxed sequence specifically in the female germ line. The Donating Investigator suggests to accomplish this, females homozygous or heterozygous for the floxed allele, as well as hemizygous for the Zp3cre allele are crossed with wild type males. Progeny will carry the deleted-floxed allele. | ||
| 006481 | C57BL/6J-Tg(ACTB-NOTCH1)1Shn/J | Repository- Live |
| Transgenic mice are viable, fertile and behaviorally normal. These "CALSL-NICD (H)" mice (or simply CALSL-NICD) reportedly carry 10-20 copies of the transgene inserted into a single genomic locus. Expression of the transgene-derived intracellular domain of human NOTCH1 is prevented by a "Lox-STOP-Lox" cassette. When transgenic mice are bred to a strain expressing Cre recombinase, the "floxed stop" cassette is excised in the resulting offspring, and human NOTCH1 expression is observed in the cre-expressing tissue(s). These transgenic mice may be useful in studying early neural progenitor cell development and apoptosis, and responses to tissue-specific Notch activation. For example, when crossed to a strain expressing Cre recombinase in the nervous system (see Stock No. 003771), this transgenic mouse strain may be useful in studies of notch signaling during apoptotic cell death. | ||
| 007567 | C57BL/6J-Tg(Itgax-cre,-EGFP)4097Ach/J | Repository- Live |
| Mice hemizygous for this CD11c-Cre-GFP transgene are viable and fertile. The CD11c (Itgax) promoter directs bicistronic Cre and EGFP protein expression to dendritic cells (DCs). Expression of EGFP is expected to have equimolar expression with Cre recombinase. When bred with any mouse containing a loxP-flanked sequence of interest, the resulting offspring can have Cre-mediated recombination of the flanked sequence. These CD11c-Cre-GFP transgenic mice (as well as CD11c-Cre transgenic mice (see Stock No. 008068)) may be useful for immunological studies utilizing Cre-lox technology or fluorescent protein expression in dendritic cells. | ||
| 008661 | C57BL/6J-Tg(Nkx2-1-cre)2Sand/J | Repository- Live |
| Mice homozygous for the Nkx2.1Cre (or BAC-Nkx2.1-Cre) transgene are viable and fertile, with cre expression directed to major subgroups of brain interneuron progenitors, developing lung, thyroid, and pituitary by the Nkx2.1 promoter/enhancer regions within the BAC transgene. When bred with mice containing a loxP-flanked sequence of interest, Cre-mediated recombination will result in deletion of the floxed sequence(s) in the offspring. For example, when bred with beta-galactosidase reporter mice, the first detectable Cre recombinase expression in double mutant offspring is observed on embryonic day (E)10.5 in the basal telencephalon. These Nkx2.1Cre (or BAC-Nkx2.1-Cre) transgenic mice may be useful for generating conditional mutations for studying gain or loss of function and/or fate mapping in subgroups of brain progenitors (including future major interneurons in telencephalon and hypothalamus cells), as well as developing lung, thyroid, and pituitary. | ||
| 016211 | C57BL/6N-Agtr1atm1Uky/J | Repository- Live |
| These AT1aflox mutant mice possess a loxP site upstream of exon 3 followed by a neomycin resistance (neo) cassette flanked by frt sites and loxP sites downstream of exon 3 of the angiotensin II receptor, type 1a (Agtr1a) gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. AGTR1A is expressed in vascular cells such as endothelial cells, smooth muscle cells, and macrophages. Angiotensin II (Ang II) is a vasoconstrictor which, upon binding to AGTR1A, can induce aneurysms in the ascending aorta. When bred to mice that express tissue-specific Cre recombinase, resulting offspring will have exon 3 deleted in the cre-expressing tissues. When this floxed strain is crossed to a strain expressing Cre recombinase in smooth muscle, deletion of Agtr1a had no affect on ascending aortic aneurysms (AA) after Ang II infusion. In contrast, when cr ..... For more information please see the full phenotype on the strain data sheet | ||
| 015823 | C57BL/6N-Pawrtm1Rang/J | Repository- Live |
| Mice homozygous for this Par4flox allele are viable and fertile, with loxP sites flanking exon 2 of the targeted PRKC, apoptosis, WT1, regulator (Pawr or Par-4) gene. Homozygotes are viable, fertile, normal in size, and do not display any gross physical or behavioral abnormalities. PAR4 is a pro-apoptopic protein capable of inducing apoptosis in cancer cells and causing regression of tumors in animal models. PAR4 interacts with, and inhibit, atypical protein kinase C isoforms, functioning as a negative regulator of the NF-κB pathway. When these mutant mice are bred to mice that express Cre recombinase, the resulting offspring will have exon 2 deleted in the cre-expressing tissue, resulting in inactivation of Pawr gene function. Loss of PAR4 leads to a reduction in apoptosis by increased activation of NF-κB. These mutant mice may be useful in generating conditional mutations for studying tumor development and treatment. ..... For more information please see the full phenotype on the strain data sheet | ||
| 016582 | C57BL/6N-Tg(Slc32a1-icre/ERT2)3Gloss/J | Repository- Live |
| These transgenic mice have a tamoxifen inducible Cre-mediated recombination system driven by the mouse Slc32a1, solute carrier family 32 (GABA vesicular transporter), member 1, promoter. When crossed with a strain containing a loxP site flanked sequence, the offspring are useful for generating tamoxifen-induced, Cre-mediated targeting events. Tamoxifen administration induces Cre recombination throughout the brain in neurons that structurally resemble interneurons. Homozygous mutant mice are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities.
This Cre-ERT2 fusion protein consists of iCre recombinase (Codon-improved Cre recombinase) fused to a triple mutant form of the human estrogen receptor which does not bind its natural ligand (17β-estradiol) at physiological concentrations but will bind the synthetic estrogen receptor ligands 4-hydroxytamoxifen (OHT or tamoxifen) and, with lesser sensitivity, ICI 18278 ..... | ||
| 016583 | C57BL/6N-Tg(Slc6a3-icre/ERT2)2Gloss/J | Repository- Live |
| These transgenic mice have a tamoxifen inducible Cre-mediated recombination system driven by the mouse Slc6a3, solute carrier family 6 (neurotransmitter
transporter, dopamine), member 3, promoter. When crossed with a strain containing a loxP site flanked sequence, the offspring are useful for generating tamoxifen-induced, Cre-mediated targeting events. Tamoxifen administration induces Cre recombination in dopaminergic cells of the substantia nigra and locus coeruleus. Homozygous mutant mice are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities.
This Cre-ERT2 fusion protein consists of iCre recombinase (Codon-improved Cre recombinase) fused to a triple mutant form of the human estrogen receptor which does not bind its natural ligand (17β-estradiol) at physiological concentrations but will bind the synthetic estrogen receptor ligands 4-hydroxytamoxifen (OHT or tamoxifen) and, with lesser sensitivity, ICI 1827 ..... | ||
| 004081 | C;129S-Vhltm1Jae/J | Repository- Live |
| This strain contains loxP sites flanking the Vhl promoter and exon 1 resulting in a conditional null allele. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. Cre-mediated recombination results in the deletion of the promoter and exon 1. Studies in which liver-specific inactivation of the Vhl gene was achieved by breeding this strain with albumin promoter driven-Cre mice (see Stock No. 003574 for example) resulted in hemizygous mice that exhibit cavernous hemangiomas of the liver, a rare component of the human von Hippel-Lindau (VHL) disease. This strain represents an effective tool for generating tissue specific-targeted mutants useful in studies examining VHL and tumor suppression in general.
When bred to a strain expressing Cre recombinase in the myeloid cell lineage (see Stock No. For more information please see the full phenotype on the strain data sheet | ||
| 004597 | C;129S4-Ptentm1Hwu/J | Repository- Live |
| These mice possess loxP sites flanking exon 5 of the targeted gene. Mice homozygous for the "floxed" allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When used in conjunction with a Cre recombinase-expressing strain, this strain is useful in generating tissue-specific mutants of the floxed allele.
For example, when crossed to a strain expressing Cre recombinase in astrocytes (see Stock No. 012887), this mutant mouse strain may be useful in studies of neurogenesis. When crossed to a strain expressing Cre recombinase in the central nervous system (see Stock No. 004600), this mutant mouse strain may be useful in studies of glia differentiation and cerebellar development. | ||
| 009108 | CBy.129P2(B6)-Myd88tm1Defr/J | Repository- Live |
| These mice possess loxP sites on either side of exon 3 of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When these mutant mice are bred to mice that express Cre recombinase, resulting offspring will have exon 3 deleted in the cre-expressing tissue(s).
When bred to a strain with inducible Cre recombinase expression in dendritic cells (see Stock No. 008068 for example), this mutant mouse strain may be useful in studies of Toll-like receptor signaling during immune responses. When bred to a strain with Cre recombinase expression in hematopoietic cells (see Stock No. 008610 for example), this mutant mouse strain may be useful in studies of Toll-like receptor signaling and natural killer cells. When bred to a strain with Cre reco ..... | ||
| 008040 | CBy.B6-Gt(ROSA)26Sortm1(HBEGF)Awai/J | Repository- Live |
| Mice homozygous for this iDTR mutation are viable and fertile. These mice have the simian Diphtheria Toxin Receptor (DTR; from simian Hbegf) inserted into the Gt(ROSA)26Sor (ROSA26) locus. Widespread expression of DTR is blocked by an upstream loxP-flanked STOP sequence. When bred to Cre recombinase-expressing mice, the STOP sequence is deleted in tissues where Cre is present, permitting DTR expression. Cells expressing DTR are rendered susceptible to ablation following Diphtheria toxin administration.
For example, when bred to a strain with a Cd19 null allele and expressing Cre recombinase during the B lymphocyte development (Stock No. 006785), this mutant mouse strain may be useful in studies of lymphocyte cell ablation. When crossed to a strain expressing Cre recombinase in the pituitary and, at lower levels, in the testes (see Stock No. > ..... | ||
| 006774 | FVB-Tg(Col2a1-cre/ERT)KA3Smac/J | Repository- Live |
| Mice hemizygous or homozygous for the Col2CreERT transgene are viable and fertile. Mice from this founder line (line K from founder mouse A3) have strong tamoxifen-inducible cre expression directed to cells of the chondrogenic lineage (cartilage), with minimal (<0.1%) cre activity in the absence of tamoxifen. The CreERT protein consists of Cre recombinase fused to a mutant form of the human estrogen receptor; which does not bind its natural ligand (17β-estradiol) at physiological concentrations but will bind the synthetic estrogen receptor ligand 4-hydroxytamoxifen. Restricted to the cytoplasm, CreERT can only gain access to the nuclear compartment after exposure to tamoxifen. To counteract the mixed estrogen agonist effects of tamoxifen injections, which can result in late fetal abortions in pregnant mice, progesterone may be coadministered. When these Col2CreERT mice are bred with mice containing a loxP-flanked ..... For more information please see the full phenotype on the strain data sheet | ||
| 006954 | FVB-Tg(Ddx4-cre)1Dcas/J | Repository- Live |
| Mice hemizygous for this Vasa-Cre transgene are viable and fertile. Transgenic cre activity is directed to male and female germ cells starting at embryonic day (e)15-e18. When bred with mice containing a loxP-flanked sequence of interest, Cre-mediated recombination will result in deletion of the flanked sequence. In such breedings, occasional hemizygous mice may exhibit variegated cre expression in skin epithelium or global cre expression (<20% incidence). Differential parent-of-origin transgene expression is observed. When the mother harbors Vasa-Cre, virtually all progeny undergo global Cre-mediated recombination, even those that do not inherit the transgene (which may be useful in converting a "floxed" allele to a null while obviating the need to perform additional crosses to remove the transgene). To achieve germ-line specific Cre-mediated recombination in offspring, paternal Vasa-Cre mice should be used.
In crosses with some floxed alleles, gl ..... | ||
| 004600 | FVB-Tg(GFAP-cre)25Mes/J | Repository- Live |
| Mice hemizygous for the transgenic insert are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. Mice that are homozygous for the transgene are not viable. This transgenic mouse strain expresses Cre recombinase under the control of the human glial fibrillary acidic protein promoter (GFAP). When crossed with a strain containing loxP site flanked sequence of interest, Cre-mediated recombination results in tissue-specific deletion of the target. Recombination occurs primarily in the central nervous system, affecting astrocytes, oligodendroglia, ependyma and some neurons. Expression activity is also present in periportal cells of the liver. Developmental onset of transgene expression occurs in the dorsal and medial regions of the telencephalon by embryonic day 13.5. In adult cerebellum, only astrocytes are immunoreactive for GFAP or Cre recombinase. This mutant mouse strain represents an effective tool for generating central ner ..... For more information please see the full phenotype on the strain data sheet | ||
| 006364 | FVB-Tg(Nr5a1-cre)2Lowl/J | Repository- Live |
| Mice hemizygous for the "Sf1-Cre" transgene are viable, fertile, normal in size, and do not display any gross physical or behavioral abnormalities. Transgene expression mimics the mRNA pattern of Nr5a1; with Cre activity observed in steroidogenic factor-1 (SF1)-positive neurons in the ventromedial hypothalamic nucleus (VMH) as well as pituitary, gonad, and adrenal tissue. Expression is also noted in the cerebral cortex and in a few scattered cells in the caudal brainstem of mice derived from line 2 (but not line 7). If bred with mice containing a loxP-flanked sequence of interest, tissue-specific deletion of that genome results in the offspring. Specifically, these cre-expressing mice may be useful in studies involving the hypothalamus, such as body weight homeostasis, obesity, leptin metabolism, or as a reporter strain for SF1-transcription factor activity. | ||
| 009427 | FVB.129S4(B6)-Gt(ROSA)26Sortm1Sor/J | Repository- Live |
| Homozygous mice are viable and fertile, with a loxP-flanked DNA STOP sequence preventing expression of the downstream lacZ gene. When crossed with a cre transgenic strain, the STOP sequence is removed and lacZ is expressed in cells/tissues where cre is expressed. These mutant mice may be used as a Cre-reporter strain; to test the tissue/cellular expression pattern of cre transgenic mice.
In an attempt to offer alleles on well-characterized or multiple genetic backgrounds, alleles are frequently moved to a genetic background different from that on which an allele was first characterized. This is the case for the strain above. It should be noted that the phenotype could vary from that originally described. We will modify the strain description if necessary as published results become available. | ||
| 005125 | FVB.129S6(B6)-Gt(ROSA)26Sortm1(Luc)Kael/J | Repository- Live |
| These mice contain the firefly luciferase (luc) gene inserted into the Gt(ROSA)26Sor locus. Expression of the luciferase gene is blocked by a loxP-flanked STOP fragment placed between the luc sequence and the Gt(ROSA)26Sor promoter. This strain serves as a Cre reporter strain. When used in conjunction with a Cre recombinase-expressing strain, successful Cre-mediated excision is indicated by luciferase expression in Cre-expressing tissues. Mice that are heterozygous for the transgenic insert are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. | ||
| 012429 | FVB.Cg-Gt(ROSA)26Sortm1(CAG-lacZ,-EGFP)Glh/J | Repository- Live |
| Mice homozygous for the R26NZG allele are viable and fertile. The R26NZG allele contains a loxP-flanked PGK-Neo-4x polyA STOP cassette, FRT-flanked a nuclear localized β-galactosidase (nlslacZ)-3x polyA, and enhanced green fluorescent protein (EGFP)-1x polyA. Reporter gene expression from endogenous Gt(ROSA)26Sor promoter/enhancer regions is not expected, as a splice acceptor was not included in the construct. In the absence of Cre, reporter gene expression is prevented by the STOP sequence. After removal of the loxP-flanked STOP cassette via cre-mediated recombination, nlslacZ labels all cells where Cre recombinase is expressed. R26NZG can be converted to a Cre-dependent EGFP reporter, R26NG, by FLP-dependent germ line excision of the nlslacZ cassette. Germ line excision of the PGKNEO cassette by Cre converts R26NZG into a FLP-dependent EGFP reporter, R2 ..... For more information please see the full phenotype on the strain data sheet | ||
| 014140 | FVB.Cg-Myod1tm2.1(icre)Glh/J | Repository- Live |
| The MyoDiCre targeting vector was designed to replace exon 1 of the Myogenic differentiation 1 (Myod1) gene with a modified Cre-recombinase, iCre, abolishing Myod1 gene function. This optimized variant of Cre recombinase, driven by Myod1 promoter/enhancer elements, improves translational efficiency and reduces epigenic silencing. Heterozygous mice are viable, fertile, and normal in size, while homozygous mice exhibit reduced fitness and survival prior to weaning. Myod1 is a muscle regulatory factor and a marker of commited myogenic cells. When MyoDiCre mice are bred with mice containing loxP-flanked sequences, Cre-mediated recombination will result in deletion of the floxed sequences in the Myod1-expressing cells of the offspring. These mice may be useful for lineage analysis and skeletal muscle-specific gene ablation. | ||
| 003314 | FVB/N-Tg(EIIa-cre)C5379Lmgd/J | Repository- Live |
| This line carries a Cre transgene under the control of the adenovirus EIIa promoter that targets expression of Cre recombinase to the early mouse embryo. Cre expression is thought to occur prior to implantation in the uterine wall. A mosaic pattern of expression is commonly observed. Cre-mediated recombination occurs in a wide range of tissues, including the germ cells that transmit the genetic alteration to progeny.
View cre expression characterization. | ||
| 008197 | FVB/N-Tg(HTT*97Q)IXwy/J | Repository- Live |
| Mice hemizygous for the BACHD transgene are viable and fertile. Under the control of endogenous human htt regulatory machinery, BACHD mice have relatively high expression levels of a neuropathogenic, full-length human mutant Huntingtin (fl-mhtt) modified to harbor a loxP-flanked human mutant htt exon 1 sequence (containing 97 mixed CAA-CAG repeats encoding a continuous polyglutamine (polyQ) stretch). Prior to Cre recombinase exposure, BACHD mice exhibit progressive motor deficits, neuronal synaptic dysfunction, and selective late-onset neuropathology without somatic polyQ repeat instability in the aged brain. Moreover, BACHD mice reproduce a mhtt aggregation pattern reminiscent of that in adult-onset Huntington's disease (HD). Importantly, a relatively steady-state level of predominantly fl-mhtt and a small amount of mhtt N-terminal fragments present in both the nucleus and cytoplasm, are responsible for the onset and progression of neuropathology. Upon exposure to ..... For more information please see the full phenotype on the strain data sheet | ||
| 006143 | FVB/N-Tg(Thy1-cre)1Vln/J | Repository- Live |
| Hemizygous mice are viable, fertile, normal in size, and do not display any gross physical or behavioral abnormalities. Cre activity is observed in nearly all neurons in cortex and hippocampus. When bred with any mouse containing a loxP-flanked sequence of interest, Cre-mediated recombination will result in postnatal, neuron-specific deletion of the flanked genome. These mice may be useful in studies of the nervous system, including Alzheimer's disease.
View cre expression characterization. | ||
| 013063 | NOD.129S6(B6)-S1pr1tm2Rlp/JbsJ | Repository- Live |
| Homozygous and heterozygous C57BL/6 mice carrying the S1pr1tm2Rlp (Slpr1loxp) mice are viable, fertile, normal in size, and do not display any gross physical or behavioral abnormalities, indicating the changes introduced did not disrupt the gene. Immunohistochemistry of C57BL/6 E12.5 embryos, carrying the Slpr1loxp mutation and the Tie2-cre transgene, exhibit reduced expression of S1PR1 in endothelial cells. When S1pr1loxp/+ and the Tie2-cre/+ transgene are combined with the heterozygous S1pr1 targeted mutation, the pups die before birth and exhibit multiple deformities similar to the S1pr1 -/- targeted mutant.
Incidence studies performed at The Jackson Laboratory shows that NOD congenic mutant mice are diabetes suppressed (females 15% and 15% of males at 23 weeks of age). Fine mapping of this stock indicates that the congenic region (D3Mit189, 100Mb through D3Mit199, ..... | ||
| 013233 | NOD.B6-Tg(Itgax-cre,-EGFP)4097Ach/J | Repository- Live |
| Mice hemizygous for this Itgax-cre,-EGFP (Itgax, commonly referred to as CD11c) transgene are viable and fertile. The CD11c promoter directs bicistronic Cre and EGFP protein expression to dendritic cells (DCs). Expression of EGFP is expected to have equimolar expression with Cre recombinase. When bred with any mouse containing a loxP-flanked sequence of interest, the resulting offspring can have Cre-mediated recombination of the flanked sequence. These CD11c-Cre-GFP transgenic mice may be useful for immunological studies, specifically in Type 1 Diabetes, utilizing Cre-lox technology or fluorescent protein expression in dendritic cells, . | ||
| 012622 | NOD.Cg-Myd88tm1Defr/J | Repository- Live |
| These mice possess loxP sites on either side of exon 3 of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When these mutant mice are bred to mice that express Cre recombinase, resulting offspring will have exon 3 deleted in the cre-expressing tissue(s).
These myeloid differentiation primary response gene 88 (Myd88) conditional (floxed) mutant mice may be useful in studies of Toll-like receptor signaling and natural killer cells. In an attempt to offer alleles on well-characterized or multiple genetic backgrounds, alleles are frequently moved to a genetic background different from that on which an allele was first characterized. It should be noted that the phenotype could vary from that originally described. We will modify the strain description if necessary as published results become available. | ||
| 008694 | NOD/ShiLt-Tg(Foxp3-EGFP/cre)1cJbs/J | Repository- Live |
| Mice hemizygous for the Foxp3-EGFP/cre BAC transgene are viable and fertile. They express an enhanced green fluorescent protein and codon optimized "humanized" cre under the control of the mouse Foxp3 promoter. Transgene expression is specific to Cd4+Cd25 highCd127 low T cells from the lymph nodes, spleen and thymus. GFP expression is restricted to FoxP3+ cells. This mutant mouse strain may be useful for fluorescently labeling Foxp3+ T-cells to study regulatory T-cell function in autoimmunity specifically, type 1 diabetes. | ||
| 009597 | STOCK Adam17tm1.2Bbl/J | Repository- Live |
| Mice homozygous for this Taceflox allele are viable and fertile, with loxP sites flanking exon 2 of the targeted gene. When bred to mice that express Cre recombinase, the resulting offspring will have the floxed sequences deleted in the cre-expressing tissue producing a null allele. As the proinflammatory cytokine TNF-α and other other cell receptors are synthesized as membrane-bound precursors that need to be proteolytically released by functional TNF-α converting enzyme (TACE or Adam17 [a disintegrin and metallopeptidase domain 17]), these Taceflox mutant mice may be useful in generating conditional mutations for studying TNF-sheddase function, TNF-related autoimmune diseases. | ||
| 012458 | STOCK Adrbk1tm1Gwd/J | Repository- Live |
| These GRK2f/f mutant mice possess loxP sites flanking exons 3-6 of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When these mutant mice are bred to mice that express Cre in a ubiquitous manner embryos die at E~13.5. When bred to mice that express tissue-specific Cre recombinase, resulting offspring will have exons 3-6 deleted in the cre-expressing tissues. This strain may be useful for studying the regulation of beta-adrenergic receptor signaling or other receptors regulated in a GRK2-dependent manner. | ||
| 012899 | STOCK Agrptm1(cre)Lowl/J | Repository- Live |
| Mice homozygous for the Agrp-Ires-cre allele are viable and fertile, with IRES-Cre inserted in exon 3 of the agouti related protein, Agrp. As such, cre expression is directed by the endogenous promoter/enhancer regions. Specifically, Cre recombinase expression is observed in agouti-related protein (AgRP) secreting neurons. When bred with mice containing a loxP-flanked sequence of interest, Cre-mediated recombination will result in deletion of the floxed sequence(s) in the offspring. These mice may be useful for studying the physiological functions of GABA neurotransmission in ArGP neurons in the hypothalamus. | ||
| 012882 | STOCK Ascl1tm1.1(Cre/ERT2)Jejo/J | Repository- Live |
| In Ascl1-CreERT2 mice, the entire coding region of the endogenous mouse achaete-scute complex homolog 1 (Ascl1 or Mash1) gene is replaced by a CreERT2 fusion protein. Cre activity is induced following tamoxifen administration. As such, when Ascl1-CreERT2 mice are bred with mice containing loxP-flanked sequence, tamoxifen-inducible Cre-mediated recombination will result in deletion of the floxed sequences in the Ascl1-expressing cells of the offspring. The creERT2 fusion protein is expressed in all Ascl1 expressing neural progenitor cells in the embryo and the adult brain, including subsets of neurons throughout central nervous system (CNS) and peripheral nervous system (PNS), and in neuroendocrine cells in lung and kidney. Homozygotes die within hours of birth due to CNS and PNS disruptions in neural development. Mice heterozygous for this allele are viable, fertile, and normal in size. These mice may be useful for studying the lineage of distin ..... For more information please see the full phenotype on the strain data sheet | ||
| 008882 | STOCK Bcl2tm1Irt/J | Repository- Live |
| Mice homozygous for this Bcl2flox conditional allele are viable and fertile, with a loxP-flanked neo cassette upstream of exon 2, as well as a loxP site downstream of exon 2 of the Bcl2 (B-cell leukemia/lymphoma 2) gene. When bred to mice that express Cre recombinase, the resulting offspring can have one of three resulting genotypes in the cre-expressing tissue(s); only the neo selection cassette deleted, only exon 2 deleted, or both the neo selection cassette and exon 2 deleted. The two latter genotypes result in loss of Bcl2 protein expression and are reported to confer the null phenotype. These Bcl2flox mutant mice may be useful in generating conditional mutations for studying apoptosis, mitochondrial permeability, cell survival signaling, cancer, neurological disorders, and immunity.
For example, when crossed to a strain expressing Cre recombinase in myeloid cell lineages (see Stock No. For more information please see the full phenotype on the strain data sheet | ||
| 004339 | STOCK Bdnftm3Jae/J | Repository- Live |
| These mice possess loxP sites on either side of exon 5 of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities.
When bred to a strain expressing Cre recombinase under the control of a tetracycline-responsive promoter element (see Stock No. 006224, 006234, 006244) and a strain expressing a tetracycline-controlled activator protein in brain tissues (see Stock No. 003763), this mutant mouse strain may be useful in studies of hippocampal-dependent learning and long-term potentiation. When bred to a strain expressing Cre recombinase in neuronal cells (see Stock No. 003966 for example), this ..... | ||
| 012706 | STOCK Ccktm1.1(cre)Zjh/J | Repository- Live |
| The Cck-IRES-Cre allele harbors an internal ribosome entry site and Cre recombinase in the 3' UTR of the cholecystokinin locus (Cck). As such, cre expression is directed by the endogenous Cck promoter/enhancer elements. The donating investigator reports that homozygous mice are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When Cck-IRES-Cre mice are bred with mice containing loxP-flanked sequences, Cre-mediated recombination will result in deletion of the floxed sequences in the Cck-expressing cells in the offspring.
The donating investigator reports Cre recombinase activity is specific and efficient (largely recapitulates the endogenous Cck expression pattern with highly efficient recombination). They report Cre recombinase activity is observed in cholecystokinin positive neurons (interneurons) of the cortex. Characterization of cre expression in tissues other than brain is not ..... | ||
| 013701 | STOCK Cep290tm1Jgg/J | Repository- Live |
| These mice possess loxP sites on either side of exon 36 and 37 of the Cep290 (centrosomal protein 290) gene. When crossed with a Cre recombinase-expressing strain, this strain is useful in eliminating tissue-specific expression of the gene. This strain may be useful in studies of retinal degeneration, cilia/flagella development, and fertility. | ||
| 010910 | STOCK Corttm1(cre)Zjh/J | Repository- Live |
| The Cst-T2A-Cre (Cort-T2A-Cre) allele harbors a a T2A oligopeptide that mediates ribosomal skipping (foot-and-mouth disease virus 2A from the insect Thosea asigna virus) and Cre recombinase in the 3' UTR of the cortistatin locus (Cort). As such, cre expression is directed by the endogenous Cort promoter/enhancer elements. The donating investigator reports that homozygous mice are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When Cst-T2A-Cre mice are bred with mice containing loxP-flanked sequences, Cre-mediated recombination will result in deletion of the floxed sequences in the Cort-expressing cells (CST positive neurons) of the offspring.
The donating investigator reports Cre recombinase activity is specific and efficient (largely recapitulates the endogenous Cort expression pattern with highly efficient recombination). They report Cre recombinase activity is observed in so ..... | ||
| 013170 | STOCK Dclk1tm1.2Jgg/J | Repository- Live |
| These mice possess loxP sites on either side of exon 3 of the Dclk1 (doublecortin-like kinase 1) gene. Mice that are homozygous for this floxed allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When crossed with a Cre recombinase-expressing mouse, this strain is useful in eliminating tissue-specific expression of DCX-domain containing isoforms of this gene. This strain may be useful in studies of neuronal migration. | ||
| 013172 | STOCK Dclk2tm1Jgg/J | Repository- Live |
| These mice possess loxP sites on either side of exon 2 of the Dclk2 (doublecortin-like kinase 2) gene. Mice that are homozygous for this floxed allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When crossed with a Cre recombinase-expressing strain, this strain is useful in eliminating tissue-specific expression of the gene. This strain may be useful in studies of neurodevelopment and epilepsy. | ||
| 008407 | STOCK Epas1tm1Mcs/J | Repository- Live |
| The Hif-2α 2-loxP allele, also called Hif-2&alphafl or Epas12lox, contains loxP sites flanking exon 2 of the endothelial PAS domain protein 1 locus (Epas1 or Hif-2α). Homozygous mice are are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When these mutant mice are bred to mice that express Cre recombinase, resulting offspring will have exon deleted in the cre-expressing tissue(s).
For example, when bred to a strain with inducible Cre recombinase expression in cardiac cells (see Stock No. 005657 for example), this mutant mouse strain may be useful in studies of erythropoiesis. When bred to a strain with tamoxifen inducible widespread Cre recombinase expression(see Stock No. 008085 for example), this mutant mouse strain may be useful in studie ..... | ||
| 015830 | STOCK Erc1tm2.1Sud/J | Repository- Live |
| A 5'UTR exon and the first coding exon of the Erc1 (ELKS/RAB6-interacting/CAST family member 1; ELKS1, CAST2) gene are flanked by loxP sites in these floxed mutant mice. Mice that are homozygous for this floxed allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. Normal expression of the targeted gene is demonstrated by the floxed allele. | ||
| 015831 | STOCK Erc2tm1.2Sud/J | Repository- Live |
| A 5'UTR exon and the first coding exon of the Erc2 (ELKS/RAB6-interacting/CAST family member 2; ELKS2, CAST1) gene are flanked by loxP sites in these targeted mutant mice. An in-frame tetracysteine tag is located in exon 1. Mice that are homozygous for this floxed allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. Normal expression of the targeted gene is demonstrated by the floxed allele.
Widespread cre excision of the floxed exons blocks expression (see Stock No. 008391). | ||
| 007569 | STOCK Fgfr2tm1Dor/J | Repository- Live |
| Mice homozygous for this Fgfr2flox allele possess loxP sites flanking exons 8-10 of the targeted gene and are viable and fertile. When these mutant mice are bred to mice that express Cre recombinase, resulting offspring will have sequences encoding the alternatively spliced Ig domain IIIb, as well as the IIIc and TM domains, deleted in the cre-expressing tissue(s). These Fgfr2-flox mutant mice may be useful in generating conditional mutations to study the role of fibroblast growth factor receptors in vertebrate development; including early embryogenesis, regional specification of the brain, limb morphogenesis, and normal bone, craniofacial, and lens development.
For example, when crossed to a strain expressing Cre recombinase in the central nervous system, especially astrocytes (see Stock No. 004600), this mutant mouse strain may be useful in studies of astroglial migration. When crossed to ..... | ||
| 008464 | STOCK Foxa2tm2.1(cre/Esr1*)Moon/J | Repository- Live |
| This strain expresses the tamoxifen-inducible cre/Esr1 from the targeted locus. When crossed with a strain containing a loxP site flanked sequence of interest, the offspring are useful for generating tamoxifen-induced, Cre-mediated targeted deletions specifically in the developing endoderm, notochord, and floorplate. Heterozygotes and homozygotes are normal in size, viability and fertility. | ||
| 010702 | STOCK Gad2tm1(cre/ERT2)Zjh/J | Repository- Live |
| The Gad2-CreERT2 knock-in allele both abolishes Gad2 gene function and expresses a CreERT2 fusion protein (creERT2 fusion protein) from the Gad2 promoter/enhancer elements. Heterozygous mice are viable and fertile with no reported abnormalities. Homozygous mice are expected to have a knockout phenotype similar to other null mutations of this gene and may exhibit increased seizure activity (although no early death is reported). Cre-ERT2 fusion gene activity is inducible; observed following tamoxifen administration. As such, when Gad2-CreERT2 mice are bred with mice containing loxP-flanked sequence, tamoxifen-inducible Cre-mediated recombination will result in deletion of the floxed sequences in the Gad2-expressing cells of the offspring. The donating investigator reports tamoxifen-inducible Cre recombinase activity is specific and efficient (largely recapitulates the endogenous Gad2 expression pattern with highly efficient inducibility). ..... | ||
| 010802 | STOCK Gad2tm2(cre)Zjh/J | Repository- Live |
| The Gad2-IRES-Cre allele harbors an internal ribosome entry site and Cre recombinase in the 3' UTR of the Gad2 (glutamic acid decarboxylase 2) locus. As such, cre expression is directed by the endogenous Gad2 promoter/enhancer elements. The donating investigator reports that homozygous mice are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When Gad2-IRES-Cre mice are bred with mice containing loxP-flanked sequences, Cre-mediated recombination will result in deletion of the floxed sequences in the Gad2-expressing cells (GAD2 positive neurons) of the offspring.
The donating investigator reports Cre recombinase activity is specific and efficient (largely recapitulates the endogenous Gad2 expression pattern with highly efficient recombination). The donating investigator did not examine cre expression in tissues other than brain. For characterization information, see image ..... | ||
| 008194 | STOCK Gata4tm1.1Sad/J | Repository- Live |
| Mice homozygous for this Gata4loxP conditional allele are viable and fertile, with loxP sites flanking exons 3-5 of the targeted gene. When bred to mice that express Cre recombinase, the resulting offspring will have this region (coding for both zinc finger DNA-binding domains and the nuclear localization signal essential for GATA4 function) deleted in the cre-expressing tissue(s). These GATA binding protein 4 conditional mice may be useful in generating conditional mutations for studying GATA4 function during organogenesis (such as cardiogenesis) or in adult mice.
For example, when crossed to a strain expressing Cre recombinase in cardiac myocytes (see Stock No. 009074), this mutant mouse strain may be useful in studies of cardiac hypertrophy, stress-compensation and myocyte viability. When bred to a strain expressing Cre recombinase in heart muscle (see Stock No. For more information please see the full phenotype on the strain data sheet | ||
| 007913 | STOCK Gli1tm3(cre/ERT2)Alj/J | Repository- Live |
| Mice homozygous for this Gli1-CreERT2 targeted allele are viable and fertile (although homozygous males are reported to have breeding problems). Under control of the endogenous upstream promoter/enhancer elements, tamoxifen-inducible cre activity is observed in cells that have received positive Hedgehog/Sonic Hedgehog signaling. The Cre-ERT2 fusion protein consists of Cre recombinase fused to a triple mutant form of the human estrogen receptor which does not bind its natural ligand (17β-estradiol) at physiological concentrations but will bind the synthetic estrogen receptor ligands 4-hydroxytamoxifen and, with lesser sensitivity, ICI 182780. Restricted to the cytoplasm, Cre-ERT2 can only gain access to the nuclear compartment after exposure to tamoxifen. To counteract the mixed estrogen agonist effects of tamoxifen injections, which can result in late fetal abortions in pregnant mice, progesterone may be coadministered. When these Gli1-CreERT2 mice are ..... For more information please see the full phenotype on the strain data sheet | ||
| 007926 | STOCK Gli2tm6Alj/J | Repository- Live |
| Mice homozygous for this Gli2flox conditional allele are viable and fertile, with loxP sites flanking exons 7 and 8 of the targeted gene. When bred to mice that express Cre recombinase, the resulting offspring will have these exons deleted in the cre-expressing tissue(s). This results in a frameshift mutation following splicing of mRNA from exon 6 to 9 and is reported to confer the null phenotype. These Gli2flox mutant mice may be useful in generating conditional mutations for studying Hedgehog/Sonic Hedgehog signaling in the development of many organs (such as central nervous system and axis patterning), as well as the role of Gli2 in adult organs. | ||
| 008873 | STOCK Gli3tm1Alj/J | Repository- Live |
| Mice homozygous for this Gli3flox conditional allele are viable and fertile, with loxP sites flanking exon 8 of the targeted gene. When bred to mice that express Cre recombinase, the resulting offspring will have exon 8 deleted in the cre-expressing tissue(s). This results in a frameshift mutation upstream of the DNA-binding domain following splicing of mRNA from exon 7 to 9 and is reported to confer the null phenotype. These Gli3flox mutant mice may be useful in generating conditional mutations for studying Hedgehog/Sonic Hedgehog signaling in the development of many organs (such as central nervous system and limb patterning), as well as the role of Gli3 in adult organs.
When bred to a strain expressing Cre recombinase in the nervous system (see Stock No. 003771 for example), this mutant mouse strain may be useful in studies of mid/hind brain development. When bred to a str ..... | ||
| 013731 | STOCK Gt(ROSA)26Sortm1(CAG-Brainbow2.1)Cle/J | Repository- Live |
| Mice homozygous for the R26R-Confetti conditional allele are viable and fertile, with a CAG promoter, loxP site, and STOP cassette preventing transcription of the downstream Brainbow 2.1 sequences. The Brainbow 2.1 region contains two loxP-flanked dimers, each uniquely positioned in head-to-tail tandem. One dimer has nuclear-localized green fluorescent protein (hrGFPII) and a reverse-oriented cytoplasmic yellow fluorescent protein (mYFP). The other dimer has cytoplasmic red fluorescent protein (tdimer2(12)) and a reverse-oriented membrane-tethered cyan fluorescent protein (mCerulean). The Brainbow2.1 region may be written as loxP-STOP-loxP-GFP-PFY-Pxol-loxP-RFP-PFC-Pxol to show the transcriptional direction of each part. When bred to mice that express Cre recombinase, the resulting offspring may have a recombination event that stochastically places one of the four fluorescent proteins into position directly downstream of the CAG promote ..... For more information please see the full phenotype on the strain data sheet | ||
| 006331 | STOCK Gt(ROSA)26Sortm1(DTA)Jpmb/J | Repository- Live |
| Homozygous "ROSA26-eGFP-DTA" mice are viable, normal in size, and do not display any gross physical or behavioral abnormalities. The donating investigator reports that some homozygous males are subfertile. Mutant mice display widespread expression of EGFP, but DTA transcription is prevented by a strong transcriptional stop sequence. When bred to mice that express Cre recombinase under the control of a promoter of interest, the loxP-flanked EGFP and stop sequence are removed, and DTA expression is activated, resulting in the specific ablation of cre-expressing cells. This strain may be useful on its own as a fluorescent reporter or in combination with cre-expressing mice to produce conditional deletions of specific groups of cells. Transgenic mice also may have applications in toxicology and protein synthesis research.
For example, when crossed to a strain expressing Cre recombinase in the midbrain and dorsal spinal cord (see Stock No. For more information please see the full phenotype on the strain data sheet | ||
| 008159 | STOCK Gt(ROSA)26Sortm1(Notch1)Dam/J | Repository- Live |
| These mice contain a sequence encoding an intracellular portion of the mouse Notch1 gene (amino acids 1749-2293), but lacking the c-terminal PEST domain, and Green Fluorescent Protein, GFP, inserted into the GT(ROSA)26Sor locus. Expression of the Notch1 fragment and GFP is blocked by a loxP-flanked STOP fragment placed between the coding sequence and the GT(ROSA)26Sor promoter. The GFP expression is localized to the nucleus by an IRES sequence. The truncated cytoplasmic fragment encoded by the Notch1 sequence causes constitutive signaling activity. When used in conjunction with a Cre recombinase-expressing strain, this strain is useful in generating tissue-specific mutants for studying the effects of Notch pathway activation. Homozygous mutant mice are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities.
For example, when crossed to a strain expressing a tamoxifen inducible Cre recombinase in all c ..... | ||
| 005130 | STOCK Gt(ROSA)26Sortm1(Smo/EYFP)Amc/J | Repository- Live |
| These mice contain an Enhanced Yellow Fluorescent Protein/Smoothened homolog (Drosophila) fusion gene inserted into the Gt(ROSA)26Sor locus. The mutant allele consists of a fusion product involving Enhanced Yellow Fluorescent Protein (EYFP) and the constitutively active W539L point mutation of the mouse smoothened homolog (Drosophila) gene (SmoM2). Expression of the Smo/EYFP fusion gene is blocked by a loxP-flanked STOP fragment placed between the Gt(ROSA)26Sor promoter and the Smo/EYFP sequence. When used in conjunction with a Cre recombinase-expressing strain, successful Cre-mediated excision results in the constitutive expression of mouse smoothened homolog (Drosophila) and unrestrained Hedgehog signaling in Cre-expressing tissues. Expression of the SmoM2 fusion protein can be monitored using EYFP-specific fluorescence protocols. Mice that are homozygous for the mutant allele are viable, fertile, normal in size and do not display any gross physical ..... For more information please see the full phenotype on the strain data sheet | ||
| 011011 | STOCK Gt(ROSA)26Sortm1(rtTA*M2)Jae Col1a1tm4(tetO-Pou5f1,-Sox2,-Klf4,-Myc)Jae/J | Repository- Live |
| Mice homozygous for both targeted mutations (R26-rtTA and Col1a1::2lox-tetO-4F2A) are viable and fertile. These double mutant R26rtTA;Col1a12lox-4F2A mice have widespread expression of the optimized form of reverse tetracycline-controlled transactivator (rtTA-M2) protein directed to multiple tissues by the Gt(ROSA)26Sor promoter. In the absence of the tetracycline analog doxycycline (dox), expression of the loxP-flanked, dox-inducible 4F2A cassette from the Col1a1 locus is not detected. Following dox administration, this single-gene transgenic mouse strain expresses the polycistronic 4F2A cassette (four mouse reprogramming genes Oct4 [Pou5f1], Sox2, Klf4, and c-Myc [Myc]). Somatic expression of these reprogramming factors allows multiple somatic cell types to be directly reprogrammed to generate induced pluripotent stem cells (iPSCs) by culture in dox (see details below). Because the 4F2A reprogramming factors are f ..... For more information please see the full phenotype on the strain data sheet | ||
| 005572 | STOCK Gt(ROSA)26Sortm1(rtTA,EGFP)Nagy/J | Repository- Live |
| Homozygous mutant mice are viable, fertile, normal in size and do not display any behavioral abnormalities. When these gene targeted mice are bred to transgenic strains expressing Cre recombinase, functional rtTA and EGFP activity is observed in the double mutant offspring in the tissues that express cre. These double mutant mice may be bred to transgenic strains carrying genes of interest under the regulation of tetracycline responsive elements (TRE; tetO) to generate triple mutant mice in which the tissue specificity of the Cre-transgenic line and the doxycycline inducibility of the rtTA/TRE-controlled transgenes can be combined to regulate expression of the target gene. Of note, mutant mice are also available on a C57BL/6J genetic background (see Stock No. 005670). | ||
| 008600 | STOCK Gt(ROSA)26Sortm1(tTA)Roos/J | Repository- Live |
| Mice heterozygous for the ROSA:LNL:tTA conditional mutation of the Gt(ROSA)26Sor locus are viable and fertile, with a loxP-flanked STOP cassette preventing transcription of a downstream optimized/modified tetracycline-controlled transactivator protein ("mtTA"). Applying both Cre-lox and Tet-Off technologies, these ROSA:LNL:tTA mutant mice may be useful to generate compound mutant mice in which expression of a tetracycline-responsive promoter element (TRE; also called tet-operator or tetO)-driven gene of interest can be both directed to the cell types defined by the chosen Cre recombinase expression, as well as turned off by the addition of tetracycline (or its analog doxycycline (dox)). | ||
| 013124 | STOCK Gt(ROSA)26Sortm3(Gli3)Amc/J | Repository- Live |
| These RosaGli3TFlag c/c mice contain a floxed-neomycin resistance (neo) cassette and polyadenylation signal, cDNA encoding a FLAG-tagged GLI-Kruppel family member (Gli3) repressor gene, an internal ribosome entry site (IRES), and a Venus yellow fluorescent protein (YFP) under control of the ubiquitous Gt(ROSA)26Sor locus. Breeding these mutant mice to mice that express Cre-recombinase will also result in Floxed-neo-stop excision. When these mice are crossed to mice containing Cre-recombinase under direction of a paired related homeobox 1 (Prrx1) promoter (see Stock No. 005584), active in early limb mesenchyme, the mice produce Gli3TFlag at levels that are comparable with the endogenous protein. Mice exhibited a variety of limb defects including a variable preaxial forelimb polydactyly, limb truncation, and reduced mineralization. These mice may be useful for understanding Sonic hedgehog signaling and iden ..... For more information please see the full phenotype on the strain data sheet | ||
| 007576 | STOCK Gt(ROSA)26Sortm4(ACTB-tdTomato,-EGFP)Luo/J | Repository- Live |
| Mice homozygous for this mT/mG mutation are viable and fertile. These mice possess loxP sites on either side of a membrane-targeted tdTomato (mT) cassette and express strong red fluorescence in all tissues and cell types examined. Tail or whole body epifluorescence is sufficient to identify mT/mG homozygotes. When bred to Cre recombinase expressing mice, the resulting offspring have the mT cassette deleted in the cre expressing tissue(s), allowing expression of the membrane-targeted EGFP (mG) cassette located just downstream. The donating investigator reports that the ACTB promoter allows stronger and persistent expression of the fluorescent proteins (especially in adult cells) compared to the endogenous Gt(ROSA) locus alone. This double-fluorescent system allows direct live visualization of both recombined and non-recombined cells at single cell resolution, offering an internal control for phenotypic analysis of Cre-induced mosaic mutants and providing a second marker fo ..... For more information please see the full phenotype on the strain data sheet | ||
| 009674 | STOCK Gt(ROSA)26Sortm4(HIF2A*)Kael/J | Repository- Live |
| These LSL-HIF2dPA mice conditionally express a form of hemagglutinin (HA)-tagged human HIF2a (HIF2&alpha, HIF2dPA) cDNA that escapes recognition by the von Hippel-Lindau tumor suppressor protein by virtue of proline to alanine substitutions. When crossed with a tissue-specific cre strain, excision of a floxed stop cassette enables expression of the cDNA driven by the endogenous mouse Gt(ROSA)26Sor promoter. There is no expression until the mice are exposed to Cre recombinase. This strain may be useful in studies of von Hippel-Lindau disease mechanisms.
For example, when crossed to a strain expressing Cre recombinase in liver (see Stock No. 003574), this mutant mouse strain may be useful in studies of VHL disease. | ||
| 012266 | STOCK Gt(ROSA)26Sortm5(ACTB-tTA)Luo/J | Repository- Live |
| Mice homozygous for this ROSA26-ZtTA (or ZtTA) conditional allele are viable and fertile, although the donating investigator reports that heterozygous mice are more healthy and fertile than homozygous mice. This ROSA26-ZtTA (or ZtTA) conditional allele is designed with a loxP-flanked β-geo transcriptional STOP cassette preventing transcription of the downstream tetracycline-controlled transactivator protein (tTA). When bred to mice that express Cre recombinase, offspring will have the STOP cassette deleted and subsequent expression of the tTA in the cre-expressing cells. The donating investigator reports that the CMV enhancer/chicken beta-actin core promoter (pCA) allows stronger and persistent expression of the downstream tTA (especially in adult cells) compared to the endogenous Gt(ROSA)26Sor locus alone. Applying both Cre-lox and Tet-Off technologies, these ZtTA mutant mice may be useful to generate compound mutant mice in which expression of a tetracyclin ..... For more information please see the full phenotype on the strain data sheet | ||
| 013123 | STOCK Gt(ROSA)26Sortm6(Gli1)Amc/J | Repository- Live |
| These RosaGli1Flag c/c mice contain a floxed-neomycin resistance (neo) cassette and polyadenylation signal, cDNA encoding a FLAG-tagged GLI-Kruppel family member (Gli1) gene, an internal ribosome entry site (IRES), and a Venus yellow fluorescent protein (YFP) under control of the ubiquitous Gt(ROSA)26Sor locus. Breeding these mutant mice to mice that express Cre-recombinase will also result in Floxed-neo-stop excision. When these mice are crossed to mice containing Cre-recombinase under direction of an atonal homolog 1 (Math1) promoter, active in dividing granule neuron precursor cells and medulloblastoma tumors, the mice produce Gli1Flag at levels higher than the endogenous protein in the cerebellum. These mice may be useful for understanding Sonic hedgehog signaling and identifying targets of Gli1 action in developing ventral neural tube. | ||
| 014178 | STOCK Hey2tm1Eno/J | Repository- Live |
| These mice possess loxP sites on either side of exons 2 and 3 of the targeted gene, which encode amino acids 29-82. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When these mutant mice are bred to mice that express Cre recombinase, resulting offspring will have exons 2 and 3 deleted in the cre-expressing tissue(s).
When bred to a strain with Cre recombinase expression in vascular smooth muscle (see Stock No. 004746 for example), this mutant mouse strain may be useful in studies of ventricular septal defect cardiac development. When bred to a strain with Cre recombinase expression in developing heart, pharynx, this mutant mouse strain may be useful in studies of cardiac development. | ||
| 008458 | STOCK Mirc1tm1.1Tyj/J | Repository- Live |
| The miR-17~92 (Mir17, Mir18, Mir19a, Mir20a, Mir19b-1, Mir92-1) cluster, overexpressed in human cancers, is flanked by loxP sites in this targeted mutation strain. Mice homozygous for the floxed miR17~92 allele (miR17~92fl/fl) are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When used in conjunction with a Cre recombinase-expressing strain, this strain is useful in generating tissue-specific mutants of the floxed allele. | ||
| 007022 | STOCK Mnx1tm4(cre)Tmj Smn1tm1Msd Tg(SMN2*delta7)4299Ahmb Tg(SMN2)89Ahmb/J | Repository- Live |
| Mice homozygous for the Tg(SMN2*delta7)4299Ahmb and Tg(SMN2)89Ahmb transgenes and the Smntm1Msd targeted mutation allele exhibit symptoms and neuropathology similar to patients afflicted with severe proximal spinal muscular atrophy (SMA), and a similar phenotype observed in Stock no. 005025. At birth, triple mutants are noticeably smaller than normal littermates. By day 5, signs of muscle weakness are apparent and become progressively more pronounced over the following week as the mice display an abnormal gait, shakiness in the hind limbs and a tendency to fall over. In addition, this strain carries the Mnx1 For more information please see the full phenotype on the strain data sheet | ||
| 014179 | STOCK Mov10l1tm1.1Eno/J | Repository- Live |
| These mice possess loxP sites on either side of exon 20, which encodes a helicase domain. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When these mutant mice are bred to mice that express Cre recombinase, resulting offspring will have exon 20 deleted in the cre-expressing tissue(s).
When bred to a strain with widespread expression of Cre recombinase, this mutant mouse strain may be useful in studies of retrotransposon activiation in male germ cells. Global homozygous deletion results in male infertility due to apoptosis of pachytene spermatocytes. | ||
| 012871 | STOCK Pik3r1tm1Lca/J | Repository- Live |
| Mice homozygous for this p85αloxP allele are viable and fertile, with loxP sites flanking exon 7 of the targeted gene. The Pik3r1 locus encodes three proteins (p85α, p55α, and p50α) that arise from alternative transcription initiation sites; and exon 7 is the first common exon for all three isoforms. When bred to mice that express Cre recombinase, the resulting offspring will have exon 7 deleted in the cre-expressing tissue(s); splicing of upstream exons (exon 6, 1b, or 1c) directly into the downstream exon 8 results in a frameshift mutation that introduces an immediate stop codon. Such a deletion should prevent the translation of the SH2 and p110-binding domains, eliminating the ability to form a functional protein from any of the three transcription initiation sites. These mutant mice may be useful in generating conditional mutations for studying class IA phosphoinositide 3-kinases (PI3Ks) in cell growth, cell proliferation cell ..... For more information please see the full phenotype on the strain data sheet | ||
| 014141 | STOCK Prkaa1tm1.1Sjm/J | Repository- Live |
| These Prkaa1 mutant mice possess loxP sites flanking exon 3 of the protein kinase, AMP-activated, alpha 1 catalytic subunit (Prkaa1) gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. Prkaa1 belongs to the serine/threonine protein kinase family and is a catalytic subunit of the 5'-prime-AMP-activated protein kinase (AMPK). AMPK is a sensor of the energy status of cells and promotes survival during stress. When bred to mice that express tissue-specific Cre recombinase, resulting offspring will have exon 3 deleted in the cre-expressing tissues. When bred to transgenic mice expressing Cre recombinase driven by myxovirus (influenza virus) resistance 1 (Mx1) promoter/enhanced elements, PRKAA1 expression is abolished in hematopoietic cells. This strain may be useful for studying cell growth and energy expenditure. | ||
| 015832 | STOCK Rims1tm3Sud/J | Repository- Live |
| 015833 | STOCK Rims2tm1.1Sud/J | Repository- Live |
| These mice possess loxP sites on either side of exon 26 in the Rims2 (regulating synaptic membrane exocytosis 2) gene. An in-frame ECFP-tetracysteine tag is fused to the floxed exon, enabling immunofluorescent detection. Mice that are homozygous for this floxed allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When crossed with a Cre recombinase-expressing strain, this strain is useful in eliminating tissue-specific expression of the α, β, and γ isoforms of the gene. | ||
| 004526 | STOCK Smotm2Amc/J | Repository- Live |
| These mice possess loxP sites on either side of exon 1 of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When bred to a strain with the targeted null allele (Stock No. 004288) and a strain expressing Cre recombinase in the skin (Stock No. 004782), this mutant mouse strain may be useful in studies of hedgehog signalling and cell proliferation in the dental epithelium. When bred to a strain with the targeted null allele (Stock No. 004288) and a strain expressing Cre recombinase in the nervous system (Stock No. 003771), this mutant mouse strain may be useful in studies of hedgehog signalling and cerebellar foliation. When bred to ..... | ||
| 013093 | STOCK Sox2tm1.1Lan/J | Repository- Live |
| These Sox2flox mutant mice possess loxP sites flanking the coding exon of SRY-box containing gene 2 (Sox2). Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When bred to mice that express tissue-specific Cre recombinase, the resulting offspring will have no Sox2 expression in cre-expressing tissues. This strain may be useful for studying eye and lens development. | ||
| 013044 | STOCK Ssttm2.1(cre)Zjh/J | Repository- Live |
| The Sst-IRES-Cre (or SOM-IRES-Cre) allele harbors an internal ribosome entry site and Cre recombinase in the 3' UTR of the somatostatin locus (Sst). As such, cre expression is directed by the endogenous Sst promoter/enhancer elements. The donating investigator reports that homozygous mice are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When Sst-IRES-Cre mice are bred with mice containing loxP-flanked sequences, Cre-mediated recombination will result in deletion of the floxed sequences in the Sst-expressing cells in the offspring.
The donating investigator reports Cre recombinase activity is specific and efficient; largely recapitulating the endogenous somatostatin expression pattern with efficient recombination. They report Cre recombinase activity is observed in somatostatin positive neurons (including dendritic inhibitory interneurons such as Martinotti cells and Oriens-Lacunosum-Molecular ..... | ||
| 014143 | STOCK Stk11tm1.1Sjm/J | Repository- Live |
| These Stk11 mutant mice possess loxP sites flanking exons 3-6 of the serine/threonine kinase 11 (Stk11) gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. Stk11 is a member of the serine/threonine kinase family and regulates cell polarity and cell division, and controls cell energy expenditure. When bred to mice that express tissue-specific Cre recombinase, resulting offspring will have exons 3-6 deleted in the cre-expressing tissues. When bred to transgenic mice expressing Cre recombinase driven by myxovirus (influenza virus) resistance 1 (Mx1) promoter/enhanced elements, STK11 expression is abolished in hematopoietic cells. This strain may be useful for studying cell growth and tumor suppression.
For example, when crossed to a strain expressing tamoxifen-inducible Cre recombinase (see Stock No. For more information please see the full phenotype on the strain data sheet | ||
| 015836 | STOCK Syt12tm1.1Sud/J | Repository- Live |
| Exon 4 of this Syt12 (synaptotagmin XII) targeted mutation strain is flanked by loxP sites and carries a serine to alanine mutation at residue 97 (S97A). Serine 97 is a protein kinase A (PKA) phosphorylation site and the point mutation abolishes the increase of spontaneous neurotransmitter release by Syt12 overexpression in primary cortical culture. When crossed with a Cre recombinase-expressing strain, this strain is useful in eliminating tissue-specific expression of the gene. Floxed mice express the targeted gene at levels comparable to wild type, as demonstrated by Western blot of whole brain. | ||
| 012719 | STOCK Tgfb3tm1(cre)Vk/J | Repository- Live |
| Mice heterozygous for the Tgfb3-cre allele are viable, fertile, and normal in size. Homozygotes die at birth due to cleft palate. Expression of Cre recombinase is driven by the transforming growth factor β 3 (Tgfb3) locus. Specifically, Cre recombinase expression is observed in the heart, pharyngeal arches, otic vesicle, mid brain, limb buds, midline palatal epithelium, and whisker follicles during embryo and fetus development. When these transgenic mice are bred with mice containing a loxP-flanked sequence, Cre-mediated recombination results in deletion of the floxed sequences in the Cre-expressing tissues of the offspring. This strain may be useful for studying the palatal epithelium during facial development and the vasculature of the central nervous system. | ||
| 012620 | STOCK Trp53tm1Brd Brca1tm1Aash Tg(LGB-cre)74Acl/J | Repository- Live |
| BLG-Cre; Brca1F22-24/F22-24; p53+/- mice carry the beta-lactoglobulin (BLG)-Cre transgene, are homozygous for floxed exons 22-24 of the breast cancer 1 (Brca1) allele, and are heterozygous for p53 tumor-suppressor gene (p53) deficiency. Mice of this genotype are viable, fertile, normal in size and do not display any behavioral abnormalities. BLG-Cre; Brca1F22-24/F22-24; p53+/- females have expression of the BLG-Cre transgene during lactation; which leads to loss of Brca1 function in the mammary gland. This results in formation of mammary tumors exhibiting high grade central necrosis and metaplastic elements in the form of spindle cell and squamous cell differentiation; as seen in human basal-like breast cancers and BRCA1 mutation carriers. Heterozygosity for the mutant p53 allele accelerates the formation of mammary tumors. This strain may be useful for studying human basal-like cancer and breast ..... For more information please see the full phenotype on the strain data sheet | ||
| 008813 | STOCK Trpa1tm2Kykw Tg(CAG-cre/Esr1*)5Amc/J | Repository- Live |
| These compound mutant mice carry a floxed allele of the Trpa1 (transient receptor potential cation channel, subfamily A, member 1) gene in addition to a tamoxifen inducible cre transgene driven by the chicken beta actin promoter/enhancer coupled with the cytomegalovirus (CMV) immediate-early enhancer (see Stock No. 004682). Restricted to the cytoplasm, the cre/Esr1 protein can only gain access to the nuclear compartment after exposure to tamoxifen. Tamoxifen administration induces cre recombination within the Trpa1 allele, excising the S5/S6 transmembrane domains. Animals not treated with tamoxifen display no observable phenotype. | ||
| 005680 | STOCK Tsc1tm1Djk/J | Repository- Live |
| Homozygous mice are viable, fertile, normal in size, have normal expression of hamartin (the targeted gene's protein product), have no growth or behavioral defects, and are devoid of tumors through age 18 months. This mutant carries a "floxed" allele of the endogenous gene. When combined with a mutant carrying a Cre recombinase gene under the control of a promoter of interest, exons 17 and 18 of Tsc1 are deleted in the tissue of interest. This mutant may be useful in many tissue-specific studies including tuberous sclerosis or other hamartoma syndromes, regulation of the actin cytoskeleton and motility, cellular and organismal glucose homeostasis, cell growth responses, apoptosis regulation, and regulation of cell size.
When bred to a strain expressing Cre recombinase in neuronal cells (see Stock No. 003966 for example), this mutant mouse strain may be useful in studies of tuberous sclerosis.
When ..... | ||
| 010908 | STOCK Viptm1(cre)Zjh/J | Repository- Live |
| The Vip-IRES-Cre allele harbors an internal ribosome entry site and Cre recombinase in the 3' UTR of the vasoactive intestinal polypeptide locus (Vip). As such, cre expression is directed by the endogenous Vip promoter/enhancer elements. The donating investigator reports that homozygous mice are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When Vip-IRES-Cre mice are bred with mice containing loxP-flanked sequences, Cre-mediated recombination will result in deletion of the floxed sequences in the Vip-expressing cells in the offspring.
The donating investigator reports Cre recombinase activity is specific and efficient (largely recapitulates the endogenous Vip expression pattern with highly efficient recombination). They report Cre recombinase activity in some GABAergic interneurons, and did not examine cre expression in the intestine or tissues other than brain. | ||
| 010911 | STOCK Wt1tm1(EGFP/cre)Wtp/J | Repository- Live |
| Homozygous mice die between embryonic day (E)13.5 and birth with defects of heart, kidney, gonads, and multiple other organs. Heterozygous (Wt1GFPCre/+) mice are viable and fertile. The Wt1GFPCre "knock-in" allele both abolishes Wt1 gene function and expresses an enhanced green fluorescent protein-Cre recombinase fusion protein (EGFPCre) from the Wt1 promoter/enhancer elements. In heart from heterozygous mice, EGFPCre expression is directed to proepicardium and epicardium from E9.5 to E15.5, and is not found in the myocardium. When bred to mice containing loxP-flanked sequences, the resulting offspring will have Cre-mediated deletion of the floxed sequences in the Wt1-expressing cells (and their descendants). As Wt1 is expressed in the developing genitourinary system and in the mesothelia overlying most visceral organs, these mutant mice may be useful as fluorescent/Cre-lox tools for lineage-tracing/marking Wt1-expressin ..... For more information please see the full phenotype on the strain data sheet | ||
| 010912 | STOCK Wt1tm2(cre/ERT2)Wtp/J | Repository- Live |
| Homozygous mice die between embryonic day (E)13.5 and birth with defects of heart, kidney, gonads, and multiple other organs. Heterozygous (Wt1CreERT2/+) mice are viable and fertile. The Wt1CreERT2 "knock-in" allele both abolishes Wt1 gene function and has expression of the CreERT2 fusion protein (CreERT2) under control of the Wt1 promoter/enhancer elements. In heart from heterozygous mice, CreERT2 expression is directed to proepicardium and epicardium from E9.5 to E15.5, and is not found in the myocardium. CreERT2 fusion gene activity is inducible; observed following tamoxifen administration. As such, when Wt1CreERT2 mice are bred with mice containing loxP-flanked sequence, tamoxifen-inducible Cre-mediated recombination will result in deletion of the floxed sequences in the Wt1-expressing cells of the offspring. The donating investigator reports that Cre activity may be observed prior to tamoxifen exposure only in ..... For more information please see the full phenotype on the strain data sheet | ||
| 012691 | STOCK Et(icre/ERT2)14374Rdav/J | Repository- Live |
| Mice hemizygous for this enhancer trap lentiviral transgene are viable and fertile, with expression of an iCreERT2 fusion gene (an optimized variant of Cre recombinase [iCre; improved with mammalian codon usage, removed putative cryptic splice sites, altered stop codon, and reduced CpG content to limit the chances of epigenetic silencing in mammals] fused to Cre-ERT2 [a G400V/M543A/L544A triple mutation of the human estrogen receptor ligand binding domain]) under control of the promoter/enhancer regions surrounding the site where the enhancer trap lentiviral transgene randomly inserted. While Cre-ERT2 fusion gene activity is designed to be inducible (observed following tamoxifen administration), some minor Cre recombinase activity is observed without tamoxifen in these mice.
Specifically, the donating investigator reports Cre recombinase activity in brain tissues as:
many cells in hippocampus (including dentate gyrus projections), with very sparse coverage in all oth ..... For more information please see the full phenotype on the strain data sheet | ||
| 012692 | STOCK Et(icre/ERT2)14602Rdav/J | Repository- Live |
| Mice hemizygous for this enhancer trap lentiviral transgene are viable and fertile, with expression of an iCreERT2 fusion gene (an optimized variant of Cre recombinase [iCre; improved with mammalian codon usage, removed putative cryptic splice sites, altered stop codon, and reduced CpG content to limit the chances of epigenetic silencing in mammals] fused to Cre-ERT2 [a G400V/M543A/L544A triple mutation of the human estrogen receptor ligand binding domain]) under control of the promoter/enhancer regions surrounding the site where the enhancer trap lentiviral transgene randomly inserted. Cre-ERT2 fusion gene activity is designed to be inducible (observed following tamoxifen administration).
Specifically, the donating investigator reports Cre recombinase activity in brain tissues as:
scattered cells in most areas of the brain, with more cells in hippocampus (perhaps more staining in CA2 & CA3 regions; dentate gyrus projections are stained more than cell bodies). No Cre ..... For more information please see the full phenotype on the strain data sheet | ||
| 012693 | STOCK Et(icre/ERT2)14624Rdav/J | Repository- Live |
| Mice hemizygous for this enhancer trap lentiviral transgene are viable and fertile, with expression of an iCreERT2 fusion gene (an optimized variant of Cre recombinase [iCre; improved with mammalian codon usage, removed putative cryptic splice sites, altered stop codon, and reduced CpG content to limit the chances of epigenetic silencing in mammals] fused to Cre-ERT2 [a G400V/M543A/L544A triple mutation of the human estrogen receptor ligand binding domain]) under control of the promoter/enhancer regions surrounding the site where the enhancer trap lentiviral transgene randomly inserted. While Cre-ERT2 fusion gene activity is designed to be inducible (observed following tamoxifen administration), some minor Cre recombinase activity is observed without tamoxifen in these mice.
Specifically, the donating investigator reports Cre recombinase activity in brain tissues as:
scattered cells in cortex, hippocampus, with more cells in the CA3 region, midbrain, and granule cell l ..... For more information please see the full phenotype on the strain data sheet | ||
| 013749 | STOCK Tg(ACTB-EGFP,-tdTomato)11Luo/J | Repository- Live |
| Homozygous MADM-11GT mice are viable and fertile with no gross behavioral or observable abnormalities. The MADM-11GT allele has the CMV enhancer/chicken beta-actin core promoter, the N-terminal portion of a mutant enhanced green fluorescent protein (mut4-EGFP), a beta-globin intronic sequence containing an frt site and a loxP-flanked neomycin resistance gene, and the MYC-tagged C-terminal portion of a red fluorescent protein (tdTomato) all inserted into the Hipp11 locus on chromosome 11 (cytoband A1 at ~3cM between the Eif4enif1 and Drg1 loci). These MADM-11GT mutants are designed for MADM (mosaic analysis with double markers), and must be crossed to MADM-11TG mice harboring a reciprocal mutation at the same locus (see Stock No. 013751). The resulting GT/TG offspring have one copy of each reciprocal mutation on homologous chromosomes ("trans-heterozygou ..... For more information please see the full phenotype on the strain data sheet | ||
| 014092 | STOCK Tg(ACTB-tTA2,-MAPT/lacZ)1Luo/J | Repository- Live |
| Homozygous CAG-stop-tTA2 transgenic mice are viable and fertile. CAG-stop-tTA2 transgenic mice harbor the ii-CAG-stop-tTA2-IRES-tau-lacZ-ii transgene; designed with a loxP-flanked transcriptional STOP cassette preventing transcription of the downstream modified tetracycline-regulated transactivator (tTA2). The ii-CAG-stop-tTA2-IRES-tau-lacZ-ii transgene is flanked by two copies of the chicken β-globin HS4 insulator on each side to preserve expression fidelity (see additional information below). When bred to mice that express a tamoxifen-inducible Cre recombinase (CreERT2), administration of tamoxifen to the double mutant offspring allows the CreERT2 fusion protein to enter the nucleus of the cre-expressing cells; this deletes the STOP cassette and results in expression of tTA2. The donating investigator reports that tau-lacZ fusion protein expression in the tamoxifen-treated double mutant offspring is faint. Of note, the donating investigator h ..... For more information please see the full phenotype on the strain data sheet | ||
| 013751 | STOCK Tg(ACTB-tdTomato,-EGFP)11Luo/J | Repository- Live |
| Homozygous MADM-11TG mice are viable and fertile with no gross behavioral or observable abnormalities. The MADM-11TG allele has the CMV enhancer/chicken beta-actin core promoter, the N-terminal portion of a red fluorescent protein (tdTomato), a beta-globin intronic sequence containing an frt site and a loxP-flanked neomycin resistance gene, and the C-terminal portion of a mutant enhanced green fluorescent protein (mut4-EGFP) all inserted into the Hipp11 locus on chromosome 11 (cytoband A1 at ~3cM between the Eif4enif1 and Drg1 loci). These MADM-11TG mutants are designed for MADM (mosaic analysis with double markers), and must be crossed to MADM-11GT mice harboring a reciprocal mutation at the same locus (see Stock No. 013749). The resulting TG/GT offspring have one copy of each reciprocal mutation on homologous chromosomes ("trans-heterozygous"), and mu ..... For more information please see the full phenotype on the strain data sheet | ||
| 007684 | STOCK Tg(Atoh1-cre/Esr1*)14Fsh/J | Repository- Live |
| Mice hemizygous for this Math1-CreERT2 transgene are viable and fertile. Under control of the Math1 (Atoh1) enhancer, tamoxifen-inducible cre activity is observed in neural progenitors of the cerebellar rhombic lip, dorsal hindbrain and spinal cord, as well as in inner-ear primordia (with a limited amount of ectopic expression in the primordium of the hippocampus but not the cortex). The Cre-ERT2 fusion protein consists of Cre recombinase fused to a triple mutant form of the human estrogen receptor; which does not bind its natural ligand (17β-estradiol) at physiological concentrations but will bind the synthetic estrogen receptor ligands 4-hydroxytamoxifen and, with lesser sensitivity, ICI 182780. Restricted to the cytoplasm, Cre-ERT2 can only gain access to the nuclear compartment after exposure to tamoxifen. To counteract the mixed estrogen agonist effects of tamoxifen injections, which can result in late fetal abortions in pregnant mice, progesterone ma ..... For more information please see the full phenotype on the strain data sheet | ||
| 003920 | STOCK Tg(CAG-Bgeo/GFP)21Lbe/J | Repository- Live |
| These Z/EG transgenic mice constitutively express lacZ under the control of the CMV enhancer/chicken actin promoter. Expression is widespread with notable exceptions being liver and lung tissue. Expression is observed throughout all embryonic and adult stages. When crossed with a Cre recombinase-expressing strain, lacZ expression is replaced with enhanced GFP expression in tissues expressing cre. This double reporter system makes it possible to distinguish a lack of reporter expression from a lack of Cre recombinase expression while providing a means to assess cre excision activity in live animals and cells. Although homozygotes are viable, attempts to breed homozygous mice proved unsuccessful. | ||
| 009615 | STOCK Tg(Cartpt-cre)1Aibs/J | Repository- Live |
| Hemizygous Cart-Tg1-Cre mice are viable and fertile, with cre expression directed to cortex, hippocampus, and cerebellum by the Cartpt promoter/enhancer regions within the BAC transgene. The donating investigators may not have assessed expression in tissues other than brain. When bred with mice containing a loxP-flanked sequence of interest, Cre-mediated recombination will result in deletion of the floxed sequence(s) in the offspring. These Cart-Tg1-Cre mice may be useful for generating conditional mutations for studying gain or loss of function and/or fate mapping in subgroups of brain tissues (including cortex, hippocampus, and cerebellum).
For characterization information, see images at the Allen Institute for Brain Science website (Cart-Tg1-Cre images). | ||
| 008861 | STOCK Tg(Ela1-Cre/ERT2)1Stof/J | Repository- Live |
| These transgenic mice have a tamoxifen-inducible, Cre-mediated recombination system driven by the rat elastase 1, pancreatic (Ela1) promoter. The transgene insert contains a fusion product involving Cre recombinase and a mutant form of the human estrogen receptor ligand binding domain (CreERT2). The mutant human estrogen receptor does not bind natural ligand at physiological concentrations but will bind the synthetic ligand, 4-hydroxytamoxifen. Restricted to the cytoplasm, the Cre/ESR1 protein can only gain access to the nuclear compartment after exposure to tamoxifen. No cre activity is detectable without tamoxifen treatment. When these transgenic mice are bred with mice containing a loxP flanked sequence of interest, tamoxifen-inducible, Cre-mediated recombination will result in deletion of the flanked sequences in Ela1
expressing cells; making them useful in fate mapping of pancreatic acinar cells.
Hemizygous mutant mice are viable, fertile, normal in ..... For more information please see the full phenotype on the strain data sheet | ||
| 005938 | STOCK Tg(Eno2-cre)39Jme/J | Repository- Live |
| Mice hemizygous for this NSE39-Cre transgene are viable, fertile, normal in size, and do not display any gross physical or behavioral abnormalities. These NSE39-Cre mice harbor a transgenic insert consisting of the cre recombinase gene under the control of the promoter region of the rat neuron specific enolase (NSE or Eno2) gene. As such, Cre recombinase activity is directed to neurons with expression in many tissue types. When bred with mice containing a loxP-flanked sequence of interest, Cre-mediated recombination will result in deletion of the flanked genome.
Specifically, these NSE39-Cre transgenic mice may also be useful in studies of spinal muscular atrophy (SMA) along with mice harboring a conditional (floxed) Smn1 gene (see Stock No. 006138 or Stock No. 006146).
Additional SMA strains expressing cre in striated muscle are av ..... For more information please see the full phenotype on the strain data sheet | ||
| 011062 | STOCK Tg(Gdf9-cre)5092Coo/J | Repository- Live |
| Hemizygous mice are viable, fertile, normal in size, and do not display any gross physical or behavioral abnormalities. These transgenic mice express Cre recombinase under the control of the mouse growth differentiation factor 9 (Gdf9) promoter. Cre recombinase expression is detected in oocytes of the primordial follicles by postnatal day 3 and in oocytes, but not somatic cells, of all follicles at the primary, secondary and later stages by 24 days. When crossed with a strain containing loxP site flanked sequence, Cre-mediated recombination results in deletion of the flanked sequence in the offspring. This mutant mouse strain may be useful in studies of studies of folliculogenesis and oocyte development. | ||
| 012841 | STOCK Tg(Ggt1-cre)M3Egn/J | Repository- Live |
| These transgenic mice express Cre recombinase under the control of the rat Ggt1, gamma-glutamyltransferase 1, promoter. Cre recombinase expression is detected by Northern blot in the kidney beginning at age 7 days. No transcript was detected in brain, liver, spleen, muscle, lung or adrenal gland. Cre recombinase protein is detected immunohistochemically in cortical proximal tubules. When crossed with a strain containing loxP site flanked sequence of interest, Cre-mediated recombination results in deletion of the targeted gene in the cortical tubular epithelium. Mice hemizygous for the transgenic insert are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. The Donating Investigator reports that homozygotes are viable and fertile. | ||
| 014600 | STOCK Tg(I12b-cre/ERT2,-ALPP)37Fsh/J | Repository- Live |
| These transgenic mice have a tamoxifen inducible Cre-mediated recombination system driven by the mouse Dlx1/2, distal-less homeobox 1, distal-less homeobox 2, forebrain enhancer/ promoter (I12b). The transgene insert contains a fusion product involving Cre recombinase and a mutant form of the mouse estrogen receptor ligand binding domain, and the human placental alkaline phosphatase (ALPP or PLAP). The mutant mouse estrogen receptor does not bind natural ligand at physiological concentrations but will bind the synthetic ligand, 4-hydroxytamoxifen. Restricted to the cytoplasm, the Cre/ESR1 protein can only gain access to the nuclear compartment after exposure to tamoxifen. When crossed with a strain containing loxP site flanked sequences, the flanked sequences will be deleted in the cre-expressing tissues in the offspring upon administration of tamoxifen. Tamoxifen administration induces Cre recombination in the ventral telencephalon and diencephalon as early as em ..... For more information please see the full phenotype on the strain data sheet | ||
| 004782 | STOCK Tg(KRT14-cre)1Amc/J | Repository- Live |
| Mice hemizygous for the transgenic insert are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. These transgenic mice express the Cre recombinase under the control of the human keratin 14 promoter. Cre transcript is detected in the skin. When crossed to a reporter line containing Gt(ROSA)26Sortm1Sor, Beta-galactosidase activity is detected in the oral ectoderm at 11.75 dpc, and at 14.5 dpc activity is detected in the skin and throughout the dental epithelium. This strain represents an effective tool for generating tissue-specific targeted mutants that would be useful to study developmentally critical gene function in the ectoderm and its derivatives.
View cre expression characterization. | ||
| 005107 | STOCK Tg(KRT14-cre/ERT)20Efu/J | Repository- Live |
| These transgenic mice have a tamoxifen inducible Cre-mediated recombination system driven by the human keratin 14 (KRT14) promoter. The transgene insert contains a fusion product involving Cre recombinase and a mutant form of the mouse estrogen receptor ligand binding domain. The mutant mouse estrogen receptor does not bind natural ligand at physiological concentrations but will bind the synthetic ligand, 4-hydroxytamoxifen (tamoxifen). Restricted to the cytoplasm, the cre/Esr1 protein can only gain access to the nuclear compartment after exposure to tamoxifen. When crossed with a strain containing a loxP site flanked sequence of interest, the offspring are useful for generating tamoxifen-induced, Cre-mediated targeted keratinocyte-specific deletions. Oral tamoxifen administration induces Cre recombination in toe, back skin and tongue. Topically administered tamoxifen induces Cre-mediated recombination in a specific localized area of the skin, occuring in 50 to 60% of the ..... For more information please see the full phenotype on the strain data sheet | ||
| 003553 | STOCK Tg(MMTV-cre)4Mam/J | Repository- Live |
| This transgenic strain expresses P1 Cre recombinase under the control of the MMTV LTR promoter. The MMTV LTR promoter directs a widespread pattern of expression. High levels of recombination have been detected in the virgin and lactating mammary gland, salivary gland, seminal vesicle, skin, erythrocytes, B and T cells. Little background recombination was observed in the lung, kidney, liver and brain tissues (less than 10%). The donating investigator indicates that this strain may be suitable for use in applications where it is desirable to delete genes in the virgin and lactating mammary gland, skin, erythroid cells, and other secretory tissues and skin. | ||
| 009074 | STOCK Tg(Myh6-cre)1Jmk/J | Repository- Live |
| These transgenic mice express nuclear-localizing Cre recombinase under the control of the mouse Myh6 (myosin, heavy polypeptide 6, cardiac muscle, alpha; alpha-MHC) promoter. Cre recombinase expression is detected in a majority of cardiac myocytes. Approximately 70% efficiency has been demonstrated when crossed with one floxed allele strain. Mice homozygous for the transgenic insert are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. Evidence suggests that this transgene is X-linked. | ||
| 005650 | STOCK Tg(Myh6-cre/Esr1*)1Jmk/J | Repository- Live |
| The alpha-MHC-MerCreMer transgene has the mouse Myh6 promoter (myosin, heavy polypeptide 6, cardiac muscle, alpha; alpha-MHC) directing expression of a tamoxifen-inducible Cre recombinase (MerCreMer) to juvenile and adult cardiac myocytes. Mice homozygous for the alpha-MHC-MerCreMer transgene are viable, fertile, normal in size, and do not display any gross physical or behavioral abnormalities. Cre recombinase expression in heart tissue is confirmed by western blot. Southern blot confirmed heart cell specificity compared to brain, kidney, lung, liver, and skeletal muscle. Insertion of this transgene and its protein show no changes in echocardiography, heart mass or pathology, or hypertrophy marker genes compared to nontransgenic littermates. Of note, the MerCreMer double fusion protein has substantially greater Cre recombinase activity with less promiscuity compared with the CreMer single fusion protein. When alpha-MHC-MerCreMer transgenic mice are bred with mice containing For more information please see the full phenotype on the strain data sheet | ||
| 012462 | STOCK Tg(Nr5a1-cre)7Lowl/J | Repository- Live |
| These transgenic mice express Cre recombinase under the direction of the mouse Nr5a1, nuclear receptor subfamily 5, group A, member 1, promoter. The Cre recombinase activity pattern mimics the endogenous gene expression (mRNA) pattern. Cre mediated recombination is detected in steroidogenic factor-1 (SF1)-positive neurons in the ventromedial hypothalamic nucleus (VMH) as well as pituitary, gonad, and adrenal tissue. Mice hemizygous for the transgenic insert are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. The Donating Investigator has not attempted to make the strain homozygous. When crossed with a strain containing loxP site flanked sequence, Cre-mediated recombination results in tissue-specific deletion of the flanked sequence in the offspring. | ||
| 014158 | STOCK Tg(Pax4-cre)1Dam/J | Repository- Live |
| Pax4-cre transgenic mice have the mouse paired box gene 4 (Pax4) promoter directing expression of an enhanced green fluorescent protein fused to a Tet-off cassette (EGFP/tTA). The transgene also contains a tetracycline-responsive element with a CMV minimal promoter (tetO-CMVmin) driving expression of a Cre-recombinase gene. In the absence of tetracycline/doxycycline, Cre recombinase expression is observed in Pax4-expressing cells (pancreatic progenitor cells). While designed to concomitantly allow tetracycline/doxycycline-dependant inhibition of Cre recombinase expression, the donating investigator confirms no such inhibition is observed. Also, no GFP expression is observed with or without tetracycline/doxycycline administration. Therefore, Pax4-cre transgenic mice function only for Cre recombinase expression in Pax4-expressing cells. When bred with mice containing a loxP-flanked sequence, Cre-mediated recombination will result in deletion of ..... For more information please see the full phenotype on the strain data sheet | ||
| 014099 | STOCK Tg(Pmch-cre)1Lowl/J | Repository- Live |
| Mch-cre transgenic mice have the murine pro-melanin-concentrating hormone (Mch) promoter/enhancer regions within the BAC transgene directing expression of Cre-recombinase. Hemizygous Mch-cre mice are viable, fertile, and normal in size, with cre expression directed specifically to MCH-neurons of the hypothalamus and zona incerta. When these transgenic mice are bred with mice containing a loxP-flanked sequence, Cre-mediated recombination is expected to result in deletion of the floxed sequences in the Cre recombinase-expressing neurons of the offspring. MCH neurons regulate many physiological functions by projecting through the brain. These mice may be useful for studying MCH-neuronal activities in controlling energy balance, glucose homeostasis, sleep, locomotion, and reward-related behaviors. | ||
| 005965 | STOCK Tg(Pomc1-cre)16Lowl/J | Repository- Live |
| Hemizygous mice are viable, fertile, normal in size, and do not display any gross physical or behavioral abnormalities. Cre activity is demonstrable in brain area neurons involved in the control of food intake (arcuate nucleus (hypothalamus) and solitary tract nucleus (hindbrain)). When bred with a mouse containing a loxP site-flanked sequence of interest, Cre-mediated recombination results in deletion of the flanked genome in tissues that normally express Pomc1. The mice may be useful in studies of obesity, food intake, hunger, endocrine and exocrine function, and for tissue specific gene targeting. | ||
| 009606 | STOCK Tg(Six2-EGFP/cre)1Amc/J | Repository- Live |
| Hemizygous Six2-TGCtg mice are viable and fertile, harboring a BAC transgene with a Tet-off-eGFPCre under control of the Six2 promoter/enhancer regions within the BAC transgene. The Tet-off-eGFPCre contains both the tetracycline-controlled transactivator protein (tTA) as well as the tetracycline operator (tetO; also called tetracycline-responsive element [TRE] or tet-operator) upstream of an EGFPCre fusion protein. Sequence updates published after this transgene was created revealed an upstream Six2 ATG start site that is in-frame with the tTA; thus an apparent and unintended fusion was created with the tTA (80 amino acids potentially added) that renders transgene expression unaffected by tetracycline/doxycycline administration. It is not known whether the "mutant" tTA is resistant to tetracycline/doxycycline inactivation and still binds to TRE to activate EGFPCre expression or if the TRE acts as a minimal promoter adjacent to the Six2 promoter in the pr ..... For more information please see the full phenotype on the strain data sheet | ||
| 012586 | STOCK Tg(Slc1a3-cre/ERT)1Nat/J | Repository- Live |
| This BAC transgenic line expresses CreERT under the control of the Slc1a3 (solute carrier family 1 (glial high affinity glutamate transporter); GLAST) promoter. When crossed with a strain containing a loxP site flanked sequence, the offspring are useful for generating tamoxifen-induced, Cre-mediated targeted glia and neural progenitor cell-specific deletions. Injection of 4-hydroxytamoxifen leads to recombination specifically in Muller glia in the retina, in astrocytes of the brain, and in neural progenitors, including those that give rise to hippocampal neurons and olfactory neurons in the rostral migratory stream. This strain is a useful tool in studies of neurodevelopment. | ||
| 004783 | STOCK Tg(Sox2-cre)1Amc/J | Repository- Live |
| Mice hemizygous for the Sox2Cre transgene are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. These transgenic mice express Cre recombinase under the control of the mouse SRY-box containing gene 2 promoter. When these transgenic mice are bred with mice containing loxP-flanked sequences, Cre-mediated recombination will result in deletion of the floxed sequences in Sox2-expressing tissues in the offspring. Specifically, Cre recombinase activity is detected in the epiblast cells at embryonic day 6.5, with little or no activity in other cells at gastrulation. Some activity is also detected in extra embryonic derivatives of the epiblast, the yolk sac mesoderm and amnion. No Cre recombinase activity is detected in primitive endoderm derived tissues, visceral endoderm. The phenotype of homozygous mice has not been characterized to date (April 2011). These Sox2Cre transgenic may be useful for generating epiblast-derived specific ..... For more information please see the full phenotype on the strain data sheet | ||
| 008208 | STOCK Tg(Stra8-cre)1Reb/J | Repository- Live |
| Homozygous Stra8-cre transgenic mice are viable and fertile, with expression of an optimized variant of Cre recombinase (iCre) directed by the 1.4 kb mouse Stra8 (stimulated by retinoic acid gene 8) genomic promoter fragment. Postnatal Cre-recombinase expression is first observed in testes at postnatal day (P)3 (early-stage spermatogonia), increases out to P7 (pre-leptotene-stage spermatocytes), and is not detected in other tissues examined (including ovaries). In addition, no cre expression is reported in male or female embryos. When Stra8-cre transgenic males are bred with female mice containing a loxP-flanked sequence, Cre-mediated recombination will result in deletion of the floxed sequence, specifically during these stages of spermatogenesis. These Stra8-cre transgenic mice may be useful in generating conditional knockouts in postnatal, premeiotic, male germ cells for studying spermatogenesis. | ||
| 004746 | STOCK Tg(Tagln-cre)1Her/J | Repository- Live |
| Mice homozygous for the transgenic insert are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. These transgenic mice express Cre recombinase under the control of the mouse transgelin (smooth muscle protein 22-alpha) promoter. Cre recombinase expression (mRNA) closely patterns endogenous transgelin expression, with the highest levels detected in the aorta, intestine and uterus. Low levels of transcript are detected in all other organs tested, likely reflecting the vascular smooth muscle compartments in the these tissues. Cre recombinase activity is observed in vascular smooth muscle cells of hepatic and pulmonary arteries, with no activity detected outside the vascular walls. When crossed with a strain containing a loxP site-flanked sequence of interest, Cre-mediated recombination results in deletion of the flanked sequence in vascular smooth muscle cells. This strain represents an effective tool for generating tissue specific-ta ..... For more information please see the full phenotype on the strain data sheet | ||
| 012708 | STOCK Tg(Thy1-cre/ERT2,-EYFP)HGfng/PyngJ | Repository- Live |
| The "single-neuron labeling inducible Cre-mediated knockout" (SLICK) transgene is designed with two separate copies of the modified mouse Thy1 promoter region (each containing the sequences required for neuronal expression but lacking the sequences required for expression in non-neural cells) driving expression of a CreERT2 fusion protein and an enhanced yellow fluorescent protein (EYFP). Mice harboring the SLICK transgene are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. mRNA coexpression of both CreERT2 and YFP is highly correlated. YFP expression is directed primarily to projection neurons with variations in the extent and brightness of labeling observed in different founder lines (see below). CreERT2 fusion gene activity is inducible; observed at high levels following tamoxifen administration (see below). When SLICK transgenic mice are bred with mice containing loxP-flanked seque ..... For more information please see the full phenotype on the strain data sheet | ||
| 016584 | STOCK Tg(Tph2-icre/ERT2)6Gloss/J | Repository- Live |
| These transgenic mice have a tamoxifen inducible Cre-mediated recombination system driven by the mouse Tph2, tryptophan hydroxylase 2, promoter. When crossed with a strain containing a loxP site flanked sequence of interest, the offspring are useful for generating tamoxifen-induced, Cre-mediated targeted deletions. Tamoxifen administration induces Cre recombination in Tph2-expressing neurons in the raphe nucleus. Homozygous mutant mice are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities.
This Cre-ERT2 fusion protein consists of iCre recombinase (Codon-improved Cre recombinase) fused to a triple mutant form of the human estrogen receptor which does not bind its natural ligand (17β-estradiol) at physiological concentrations but will bind the synthetic estrogen receptor ligands 4-hydroxytamoxifen (OHT or tamoxifen) and, with lesser sensitivity, ICI 182780. Restricted to the cytoplasm, Cre-ERT2 can onl ..... | ||
| 003829 | STOCK Tg(Wnt1-cre)11Rth Tg(Wnt1-GAL4)11Rth/J | Repository- Live |
| When homozygous for both co-injected transgenes, Wnt-1/GAL4/cre-11 transgenic mice are viable, fertile, normal in size and do not display any gross physical abnormalities. Both Cre recombinase and the GAL4 transcriptional activator are expressed under the direction of wingless-related MMTV integration site 1 (Wnt1) promoter/regulatory sequences. Cre recombinase activity is detected in the Wnt1 pattern of expression: in the midbrain by 8.5 dpc and, after neural tube closure, in the dorsal and ventral midlines of the midbrain and caudal diencephalon, midbrain-hindbrain junction and dorsal spinal cord. When Wnt-1/GAL4/cre-11 transgenic mice are bred to mice containing loxP site-flanked sequences, cre-mediated recombination results in deletion of the floxed sequences in the midbrain and developing neural tube of the resulting offspring. | ||
| 008199 | STOCK Tg(dlx6a-cre)1Mekk/J | Repository- Live |
| Homozygous Dlx5/6-Cre transgenic mice are viable and fertile. Expression of Cre recombinase (Cre) is directed to differentiating and migrating forebrain GABAergic neurons during embryonic development by the I56i and I56ii enhancers from the zebrafish dlx5a/dlx6a intergenic region (with the 5' promoter region of zebrafish dlx6a in place to increase the activity of the intergenic enhancers rather than direct tissue-specific expression). When Dlx5/6-Cre transgenic mice are bred with mice containing a loxP-flanked sequence, Cre-mediated recombination will result in deletion of the floxed sequence in the offspring in the offspring. These Dlx5/6-Cre transgenic mice may be useful in generating specific deletions of floxed alleles in GABAergic forebrain neurons. | ||
| 006373 | 129-Braftm1Sva/J | Cryopreserved - Ready for recovery |
| Homozygous "floxed B-raf" (B-raff/f) mice are viable and fertile with normal B-raf protein expression. When bred to mice expressing Cre recombinase under the control of a promoter of interest, exon 12 of the targeted gene is deleted in the tissue of interest. These mutant mice may be useful in neurological studies such as Ras/Raf and MEK/ERK signaling, synaptic (neural) plasticity, learning and memory. For example, when crossed to a strain expressing Cre recombinase in nervous tissue (see Stock No. 003771), this mutant mouse strain may be useful in studies of neuron development. For example, when crossed to a strain expressing interferon inducible Cre recombinase (see Stock No. 003755), this mutant mouse strain may be useful in studies of extraembryonic mammmalian development. | ||
| 006835 | 129-Dag1tm2Kcam/J | Cryopreserved - Ready for recovery |
| Mice that are homozygous for this floxed allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When these mutant mice are bred to mice that express cre recombinase, resulting offspring can have exon 2 of the targeted gene deleted in the cre-expressing tissue(s). As the targeted gene has three loxP sites, other genotypes may also result. These mutant mice may be useful in studying muscle disease and regeneration. When bred to a strain expressing Cre recombinase under the control of the human glial fibrillary acidic protein promoter (GFAP) (see Stock No. 004600 for example), this mutant mouse strain may be useful in studies of brain abnormalities observed in congenital muscular dystrophies. When bred to a strain expressing Cre recombinase in the nervous system (see Stock No. 003771 for exampl ..... | ||
| 008669 | 129-Daxxtm2Led/J | Cryopreserved - Ready for recovery |
| These mice possess loxP sites on either side of exon 2 of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When these mutant mice are bred to mice that express Cre recombinase, resulting offspring will have exon 2 deleted in the cre-expressing tissue(s). These Daxx (Fas death domain-associated protein) conditional (floxed) mutant mice may be useful in generating conditional mutations for studying apoptosis and regulation of gene transcription. | ||
| 006053 | 129-Gt(ROSA)26Sortm1(CAG-EGFP)Luo/J | Cryopreserved - Ready for recovery |
| MADM-GG mice are viable with no gross behavioral or observable abnormalities. Regardless of Cre-recombination, these mice express EGFP as their N- and C-terminal coding sequences are interrupted by the beta-actin intron in-frame. High EGFP expression in every cell can be visualized in vivo and in fixed samples. These mutant mice are a control EGFP-expressing strain for use with MADM (mosaic analysis with double markers) mice (see Stock No. 006041 [MADM-GR (EGFP/Dsred2)] and Stock No. 006067 [MADM-RG (Dsred2/EGFP)]). Using the MADM system, a researcher can generate genetic mosaics in which an individual organism contains somatic cells of different genotypes. This allows the researcher to ascertain lineal relationships and pleiotropic gene function in multicellular organisms. These mice may also be useful in studies of cell differentiation and mitosis.
Mice harbor ..... | ||
| 006067 | 129-Gt(ROSA)26Sortm2(CAG-Dsred2/EGFP)Luo/J | Cryopreserved - Ready for recovery |
| MADM-RG mice are viable with no gross behavioral or observable abnormalities. Homozygous females produce less pups to weaning age compared to heterozygotes. These mutants are designed for MADM (mosaic analysis with double markers), and must be crossed to mice harboring a reciprocal mutation at the same locus (see Stock No. 006041 or Stock No. 006075, MADM-GR (EGFP/Dsred2)). The resulting offspring have one copy of each reciprocal mutation on homologous chromosomes ("trans-heterozygous") and must next be bred to a Cre-expressing strain for fluorescent protein expression. Prior to Cre-recombination, double mutant mice do not have colored cells: the chimeric genes do not produce functional proteins because their coding sequences are interrupted by the beta-actin intron in different reading frames. After DNA replication (G2 phase) in double mutant mice, Cre-recombinase introducti ..... For more information please see the full phenotype on the strain data sheet | ||
| 006041 | 129-Gt(ROSA)26Sortm3(CAG-EGFP/Dsred2)Luo/J | Cryopreserved - Ready for recovery |
| MADM-GR mice are viable with no gross behavioral or observable abnormalities. Homozygous mice have low fertility, while heterozygous mice have no reported fertility defects. These mutants are designed for MADM (mosaic analysis with double markers), and must be crossed to mice harboring a reciprocal mutation at the same locus (see Stock No. 006067 or Stock No. 006080, MADM-RG (Dsred2/EGFP)). The resulting offspring have one copy of each reciprocal mutation on homologous chromosomes ("trans-heterozygous") and must next be bred to a Cre-expressing strain for fluorescent protein expression. Prior to Cre-recombination, double mutant mice do not have colored cells: the chimeric genes do not produce functional proteins because their coding sequences are interrupted by the beta-actin intron in different reading frames. After DNA replication (G2 phase) in double mutant mice, Cre-recom ..... For more information please see the full phenotype on the strain data sheet | ||
| 005989 | 129;FVB-Tg(PTH-cre)4167Slib/J | Cryopreserved - Ready for recovery |
| Hemizygous mice are viable, fertile, normal in size, and do not display any gross physical or behavioral abnormalities. Cre activity is observed only in parathyroid tissue; no activity is seen in thyroid, muscle, lymph node, trachea, thymus, salivary tissues, lung, heart, liver, brain, stomach, spleen, kidney, large intestine, small intestine, and pancreas. When bred with any mouse containing a loxP-flanked sequence of interest, Cre-mediated recombination will result in parathyroid-specific deletion of the flanked genome. These transgenic mice may be useful in generating mouse models of parathyroid-specific deletion of genes of interest, such as multiple endocrine neoplasia type 1, extracellular calcium-sensing receptor, and vitamin D receptor. | ||
| 005109 | 129S(FVB)-Men1tm1.2Ctre/J | Cryopreserved - Ready for recovery |
| These mice possess loxP sites flanking exons 3 to 8 of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When bred to a strain expressing Cre recombinase in parathyroid tissue (see Stock No. 005989 for example), this mutant mouse strain may be useful in studies of hypercalemia and parathyroid neoplasia. | ||
| 007664 | 129S-Efnb1tm1Sor/J | Cryopreserved - Ready for recovery |
| These mice possess loxP sites flanking exons 2 through 5 of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When these mutant mice are bred to mice that express Cre recombinase, resulting offspring will have exons 2 through 5 deleted in the cre-expressing tissue(s). These Efnb1 conditional mutant mice may be useful in studying cellular signaling in embryonic development and adult mice; specifically receptor tyrosine kinases. For example, when crossed to a strain expressing Cre recombinase in epiblast-derived tissues (see Stock No. 003755), this mutant mouse strain may be useful in embryogenesis research. For example, when bred to a strain expressing Cre recombinase in midbrain/dorsal spinal cord (see Stock No. 007807 or For more information please see the full phenotype on the strain data sheet | ||
| 003310 | 129S-Gt(ROSA)26Sortm1Sor/J | Cryopreserved - Ready for recovery |
| Mice heterozygous or homozygous for the Gtrosa26tm1Sor targeted mutation may be used to test the tissue/cellular expression pattern of the cre transgene in any transgenic strain carrying cre under the regulation of a specific promoter. Cre expression results in the removal of a loxP-flanked DNA segment that prevents expression of a lacZ gene. When crossed with a cre transgenic strain, lacZ is expressed in cells/tissues where cre is expressed. The 129-Gtrosa26tm1Sor strain is particularly useful for this purpose because the ROSA26 promoter leads to generalized expression of lacZ during development or in the adult. | ||
| 009043 | 129S-Gt(ROSA)26Sortm3(CAG-luc)Tyj/J | Cryopreserved - Ready for recovery |
| Mice that are homozygous for the targeted mutation are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. In the absence of Cre, there is low level expression of Luciferase-SIY H2b antigen expression. After Cre activity, the recombined locus has high expression of Luciferase-SIY fusion protein. This mutant mouse strain may be useful in studies of immune response to a self-antigen or over-expressed tumor-associated antigen when used in combination with tumor-prone models. This mouse is also useful as a reporter for Cre activity. | ||
| 009084 | 129S-Mnttm1Awb/J | Cryopreserved - Ready for recovery |
| These mice possess loxP sites flanking exons 4-6 of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When these mutant mice are bred to mice that express Cre recombinase, resulting offspring will have exons 4 through 6 deleted, the loxP site flanked hygro resistance cassette deleted, or both excised in the cre-expressing tissue(s).
When bred to a strain with Cre recombinase expression in a wide range of tissues (see Stock No. 003314 for example), this mutant mouse strain may be useful in studies of Miller-Dieker syndrome, embryonic development and craniofacial defects. When bred to a strain with Cre recombinase expression in a wide range of tissues, especially mammary gland (see Stock No. 003553 for example), this mutant mouse ..... | ||
| 008002 | 129S-Pafah1b1tm2Awb/J | Cryopreserved - Ready for recovery |
| These mice possess loxP sites flanking exons 3 through 6 of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. Histological analysis of brains from homozygotes reveals slightly wider CA1 and CA3 regions and a split in CA2 region in the hippocampus. When these mutant mice are bred to mice that express Cre recombinase, resulting offspring will have exons 3 through 6 deleted in the cre-expressing tissue(s). | ||
| 008652 | 129S-Trp53tm2Tyj/J | Cryopreserved - Ready for recovery |
| These mice carry a conditional point-mutant allele of the transformation related protein 53 gene (p53R172H; structural mutant homologous to human p53 codon 175). The conditional allele is functionally equivalent to a null mutation. Mice have all the phenotypic issues of p53 knockout mice and therefore have some decreased viability of homozygotes. Cre-mediated recombination leads to deletion of a transcriptional termination sequence (Lox-Stop-Lox) and expression of the oncogenic protein. | ||
| 008651 | 129S-Trp53tm3Tyj/J | Cryopreserved - Ready for recovery |
| These mice carry a conditional point-mutant allele of the transformation related protein 53 gene (p53R270H; contact mutant homologous to human p53R273H). The conditional allele is functionally equivalent to a null mutation. Mice have all the phenotypic issues of p53 knockout mice and therefore have some decreased viability of homozygotes. Cre-mediated recombination leads to deletion of a transcriptional termination sequence (Lox-Stop-Lox) and expression of the oncogenic protein. | ||
| 008649 | 129S-Trpa1tm2Kykw/J | Cryopreserved - Ready for recovery |
| These mice possess loxP sites on either side of the S5/S6 transmembrane domains of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When bred to mice with a cre recombinase gene under the control of a promoter of interest, the S5/S6 transmembrane domains of the targeted gene are deleted in the tissue of interest. This strain may be useful in functional studies of cation channels. | ||
| 008180 | 129S/Sv-Krastm4Tyj/J | Cryopreserved - Ready for recovery |
| This strain carries a point mutation (G12D) whose expression is blocked by the presence of a loxP-flanked stop codon. Homozygotes die in utero. Cre-mediated recombination can excise the stop codon and permit the oncogenic protein to be expressed. Intranasal infection with an adenovirus encoding Cre results in a very high frequency of lung tumors and permits controlled timing of tumor initiation and tumor multiplicity. This strain may be useful in studies of cancer and development.
When bred to a strain expressing Cre recombinase under the control of a tetracycline-responsive promoter element and a strain expressing a tetracycline-controlled activator protein in lung epithelial cells (see Stock No. 006234 and 006235 respectively), this mutant mouse strain may be useful in studies of lung development. When bred to a strain expressing Cre recombinase in th ..... | ||
| 004302 | 129S1/Sv-Hprttm1(cre)Mnn/J | Cryopreserved - Ready for recovery |
| Mice that are homozygous for the targeted mutation are viable and fertile. This is a Cre-deleter induced mutation strain on a 129S1 background. A Cre expression cassette was inserted into the X-linked Hprt gene. When male mice carrying a neomycin selection cassette flanked by loxP sites are mated to female mice heterozygous for this targeted mutation, the cassette is excised without detectable mosaicism, irrespective of cre inheritance. Heterozygous female mice have sufficient Cre recombinase in their oocytes to excise floxed sequence at the zygote or early cleavage stage. | ||
| 003960 | 129S6-Tg(Prnp-GFP/cre)1Blw/J | Cryopreserved - Ready for recovery |
| Mice that are homozygous for the transgenic insert are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. Mice express the GFP/Cre fusion protein in widespread fashion. All tissues examined displayed Cre activity at an early (4-8 cell) embryonic stage. Germline expression is observed. Expression of GFP is less robust, being detectable in kidney tissue. | ||
| 008523 | 129S6.Cg-Tg(NPHS2-cre)295Lbh/BroJ | Cryopreserved - Ready for recovery |
| Mice harboring the p2.5P-Cre transgene are viable and fertile, with expression of Cre recombinase directed to podocytes within kidney glomeruli by the human podocin (NPHS2) promoter/enhancer region. Cre-recombinase activity is reported in podocytes during late capillary loop stage of glomerular development and persists in podocytes of mature glomeruli, with no evidence for cre expression detected in other tissues examined. Embryonic Cre-recombinase activity is also reported as early as 8.5 dpc. When bred with mice containing a loxP-flanked sequence, Cre-mediated recombination will result in deletion of the sequence. These 2.5P-Cre transgenic mice may be useful in generating conditional knockouts for studying the role of podocyte nephrobiology in renal disorders. | ||
| 009580 | B6(129S4)-Et(cre/ERT2)1382Rdav/J | Cryopreserved - Ready for recovery |
| Mice hemizygous for this enhancer trap transgene are viable and fertile, with expression of the Cre-ERT2 fusion gene under control of the promoter/enhancer regions surrounding the site where the enhancer trap transgene randomly inserted. Cre recombinase activity is observed in brain tissues following tamoxifen administration (although some cre activity is reported prior to tamoxifen administration). The donating investigators may not have assessed expression in tissues other than brain. When these enhancer trap transgenic mice are bred with mice containing a loxP-flanked sequence of interest, Cre-mediated recombination will result in deletion of the floxed sequence(s) in cre-expressing tissues in the offspring.
For characterization information, see images at the Allen Institute for Brain Science website (Et(cre/ERT2)1382Rdav images). The C ..... | ||
| 009583 | B6(129S4)-Et(cre/ERT2)1957Rdav/J | Cryopreserved - Ready for recovery |
| Mice hemizygous for this enhancer trap transgene are viable and fertile, with expression of the Cre-ERT2 fusion gene under control of the promoter/enhancer regions surrounding the site where the enhancer trap transgene randomly inserted. Cre recombinase activity is observed in brain tissues following tamoxifen administration. The donating investigators may not have assessed expression in tissues other than brain. When these enhancer trap transgenic mice are bred with mice containing a loxP-flanked sequence of interest, tamoxifen-inducible, Cre-mediated recombination will result in deletion of the floxed sequence(s) in cre-expressing tissues in the offspring.
For characterization information, see images at the Allen Institute for Brain Science website (Et(cre/ERT2)1957Rdav images). The Cre-ERT2 fusion protein (Cre-ERT2) consists of Cre re ..... | ||
| 009584 | B6(129S4)-Et(cre/ERT2)2007Rdav/J | Cryopreserved - Ready for recovery |
| Mice hemizygous for this enhancer trap transgene are viable and fertile, with expression of the Cre-ERT2 fusion gene under control of the promoter/enhancer regions surrounding the site where the enhancer trap transgene randomly inserted. Cre recombinase activity is observed in brain tissues following tamoxifen administration. The donating investigators may not have assessed expression in tissues other than brain. When these enhancer trap transgenic mice are bred with mice containing a loxP-flanked sequence of interest, tamoxifen-inducible, Cre-mediated recombination will result in deletion of the floxed sequence(s) in cre-expressing tissues in the offspring.
For characterization information, see images at the Allen Institute for Brain Science website (Et(cre/ERT2)2007Rdav images). The Cre-ERT2 fusion protein (Cre-ERT2) consists of Cre re ..... | ||
| 009574 | B6(129S4)-Et(cre/ERT2)21Rdav/J | Cryopreserved - Ready for recovery |
| Mice hemizygous for this enhancer trap transgene are viable and fertile, with expression of the Cre-ERT2 fusion gene under control of the promoter/enhancer regions surrounding the site where the enhancer trap transgene randomly inserted. Cre recombinase activity is observed in brain tissues following tamoxifen administration. The donating investigators may not have assessed expression in tissues other than brain. When these enhancer trap transgenic mice are bred with mice containing a loxP-flanked sequence of interest, tamoxifen-inducible, Cre-mediated recombination will result in deletion of the floxed sequence(s) in cre-expressing tissues in the offspring.
For characterization information, see images at the Allen Institute for Brain Science website (Et(cre/ERT2)21Rdav images). The Cre-ERT2 fusion protein (Cre-ERT2) consists of Cre reco ..... | ||
| 009578 | B6(129S4)-Et(cre/ERT2)398Rdav/J | Cryopreserved - Ready for recovery |
| Mice hemizygous for this enhancer trap transgene are viable and fertile, with expression of the Cre-ERT2 fusion gene under control of the promoter/enhancer regions surrounding the site where the enhancer trap transgene randomly inserted. Cre recombinase activity is observed in brain tissues following tamoxifen administration (although some cre activity is reported prior to tamoxifen administration). The donating investigators may not have assessed expression in tissues other than brain. When these enhancer trap transgenic mice are bred with mice containing a loxP-flanked sequence of interest, Cre-mediated recombination will result in deletion of the floxed sequence(s) in cre-expressing tissues in the offspring.
For characterization information, see images at the Allen Institute for Brain Science website (Et(cre/ERT2)398Rdav images). The Cre-E ..... | ||
| 009573 | B6(129S4)-Et(cre/ERT2)4Rdav/J | Cryopreserved - Ready for recovery |
| Mice hemizygous for this enhancer trap transgene are viable and fertile, with expression of the Cre-ERT2 fusion gene under control of the promoter/enhancer regions surrounding the site where the enhancer trap transgene randomly inserted. Cre recombinase activity is observed in brain tissues following tamoxifen administration. The donating investigators may not have assessed expression in tissues other than brain. When these enhancer trap transgenic mice are bred with mice containing a loxP-flanked sequence of interest, tamoxifen-inducible, Cre-mediated recombination will result in deletion of the floxed sequence(s) in cre-expressing tissues in the offspring.
For characterization information, see images at the Allen Institute for Brain Science website (Et(cre/ERT2)4Rdav images). The Cre-ERT2 fusion protein (Cre-ERT2) consists of Cre recomb ..... | ||
| 010688 | B6(129S4)-Et(cre/ERT2)6691Rdav/J | Cryopreserved - Ready for recovery |
| Mice hemizygous for this enhancer trap transgene are viable and fertile, with expression of the Cre-ERT2 fusion gene under control of the promoter/enhancer regions surrounding the site where the enhancer trap transgene randomly inserted. Cre recombinase activity is observed in brain tissues following tamoxifen administration. The donating investigators may not have assessed expression in tissues other than brain. When these enhancer trap transgenic mice are bred with mice containing a loxP-flanked sequence of interest, tamoxifen-inducible, Cre-mediated recombination will result in deletion of the floxed sequence(s) in cre-expressing tissues in the offspring.
For characterization information, see images at the Allen Institute for Brain Science website (Et(cre/ERT2)6691Rdav images). The Cre-ERT2 fusion protein (Cre-ERT2) consists of Cre re ..... | ||
| 010691 | B6(129S4)-Et(cre/ERT2)7149Rdav/J | Cryopreserved - Ready for recovery |
| Mice hemizygous for this enhancer trap transgene are viable and fertile, with expression of the Cre-ERT2 fusion gene under control of the promoter/enhancer regions surrounding the site where the enhancer trap transgene randomly inserted. Cre recombinase activity is observed in brain tissues following tamoxifen administration. The donating investigators may not have assessed expression in tissues other than brain. When these enhancer trap transgenic mice are bred with mice containing a loxP-flanked sequence of interest, tamoxifen-inducible, Cre-mediated recombination will result in deletion of the floxed sequence(s) in cre-expressing tissues in the offspring.
For characterization information, see images at the Allen Institute for Brain Science website (Et(cre/ERT2)7149Rdav images). The Cre-ERT2 fusion protein (Cre-ERT2) consists of Cre reco ..... | ||
| 010692 | B6(129S4)-Et(cre/ERT2)7381Rdav/J | Cryopreserved - Ready for recovery |
| Mice hemizygous for this enhancer trap transgene are viable and fertile, with expression of the Cre-ERT2 fusion gene under control of the promoter/enhancer regions surrounding the site where the enhancer trap transgene randomly inserted. Cre recombinase activity is observed in brain tissues following tamoxifen administration. The donating investigators may not have assessed expression in tissues other than brain. When these enhancer trap transgenic mice are bred with mice containing a loxP-flanked sequence of interest, tamoxifen-inducible, Cre-mediated recombination will result in deletion of the floxed sequence(s) in cre-expressing tissues in the offspring.
The Cre-ERT2 fusion protein (Cre-ERT2) consists of Cre recombinase fused to a triple mutant form of the human estrogen receptor; which does not bind its natural ligand (17β-estradiol) at physiological concentrations but will bind the synthetic estrogen receptor ligands 4-hydroxytamoxifen (OH ..... | ||
| 010693 | B6(129S4)-Et(cre/ERT2)8120Rdav/J | Cryopreserved - Ready for recovery |
| Mice hemizygous for this enhancer trap transgene are viable and fertile, with expression of the Cre-ERT2 fusion gene under control of the promoter/enhancer regions surrounding the site where the enhancer trap transgene randomly inserted. Cre recombinase activity is observed in brain tissues following tamoxifen administration. The donating investigators may not have assessed expression in tissues other than brain. When these enhancer trap transgenic mice are bred with mice containing a loxP-flanked sequence of interest, tamoxifen-inducible, Cre-mediated recombination will result in deletion of the floxed sequence(s) in cre-expressing tissues in the offspring.
For characterization information, see images at the Allen Institute for Brain Science website (Et(cre/ERT2)8120Rdav images). The Cre-ERT2 fusion protein (Cre-ERT2) consists of Cre re ..... | ||
| 010694 | B6(129S4)-Et(cre/ERT2)8131Rdav/J | Cryopreserved - Ready for recovery |
| Mice hemizygous for this enhancer trap transgene are viable and fertile, with expression of the Cre-ERT2 fusion gene under control of the promoter/enhancer regions surrounding the site where the enhancer trap transgene randomly inserted. Cre recombinase activity is observed in brain tissues following tamoxifen administration. The donating investigators may not have assessed expression in tissues other than brain. When these enhancer trap transgenic mice are bred with mice containing a loxP-flanked sequence of interest, tamoxifen-inducible, Cre-mediated recombination will result in deletion of the floxed sequence(s) in cre-expressing tissues in the offspring.
For characterization information, see images at the Allen Institute for Brain Science website (Et(cre/ERT2)8131Rdav images). The Cre-ERT2 fusion protein (Cre-ERT2) consists of Cre re ..... | ||
| 009579 | B6(129S4)-Et(cre/ERT2)837Rdav/J | Cryopreserved - Ready for recovery |
| Mice hemizygous for this enhancer trap transgene are viable and fertile, with expression of the Cre-ERT2 fusion gene under control of the promoter/enhancer regions surrounding the site where the enhancer trap transgene randomly inserted. Cre recombinase activity is observed in brain tissues following tamoxifen administration. The donating investigators may not have assessed expression in tissues other than brain. When these enhancer trap transgenic mice are bred with mice containing a loxP-flanked sequence of interest, tamoxifen-inducible, Cre-mediated recombination will result in deletion of the floxed sequence(s) in cre-expressing tissues in the offspring.
For characterization information, see images at the Allen Institute for Brain Science website (Et(cre/ERT2)837Rdav images). The Cre-ERT2 fusion protein (Cre-ERT2) consists of Cre reco ..... | ||
| 010695 | B6(129S4)-Et(cre/ERT2)9699Rdav/J | Cryopreserved - Ready for recovery |
| Mice hemizygous for this enhancer trap transgene are viable and fertile, with expression of the Cre-ERT2 fusion gene under control of the promoter/enhancer regions surrounding the site where the enhancer trap transgene randomly inserted. Cre recombinase activity is observed in brain tissues following tamoxifen administration (although some cre activity is reported prior to tamoxifen administration). The donating investigators may not have assessed expression in tissues other than brain. When these enhancer trap transgenic mice are bred with mice containing a loxP-flanked sequence of interest, Cre-mediated recombination will result in deletion of the floxed sequence(s) in cre-expressing tissues in the offspring.
For characterization information, see images at the Allen Institute for Brain Science website (Et(cre/ERT2)9699Rdav images). The Cre- ..... | ||
| 009587 | B6(129S4)-Et(icre)1402Rdav/J | Cryopreserved - Ready for recovery |
| Mice hemizygous for this enhancer trap transgene are viable and fertile, with expression of a codon-improved Cre recombinase (iCre) gene under control of the promoter/enhancer regions surrounding the site where the enhancer trap transgene randomly inserted. The donating investigator reports Cre recombinase activity in brain tissues (but may not have assessed expression in other tissues). When these enhancer trap transgenic mice are bred with mice containing a loxP-flanked sequence of interest, Cre-mediated recombination will result in deletion of the floxed sequence(s) in cre-expressing tissues in the offspring. For characterization information, see images at the Allen Institute for Brain Science website (Et(icre)1402Rdav images). | ||
| 009588 | B6(129S4)-Et(icre)1470Rdav/J | Cryopreserved - Ready for recovery |
| Mice hemizygous for this enhancer trap transgene are viable and fertile, with expression of a codon-improved Cre recombinase (iCre) gene under control of the promoter/enhancer regions surrounding the site where the enhancer trap transgene randomly inserted. The donating investigator reports Cre recombinase activity in brain tissues (but may not have assessed expression in other tissues). When these enhancer trap transgenic mice are bred with mice containing a loxP-flanked sequence of interest, Cre-mediated recombination will result in deletion of the floxed sequence(s) in cre-expressing tissues in the offspring. For characterization information, see images at the Allen Institute for Brain Science website (Et(icre)1470Rdav images). | ||
| 009589 | B6(129S4)-Et(icre)1555Rdav/J | Cryopreserved - Ready for recovery |
| Mice hemizygous for this enhancer trap transgene are viable and fertile, with expression of a codon-improved Cre recombinase (iCre) gene under control of the promoter/enhancer regions surrounding the site where the enhancer trap transgene randomly inserted. The donating investigator reports Cre recombinase activity in brain tissues (but may not have assessed expression in other tissues). When these enhancer trap transgenic mice are bred with mice containing a loxP-flanked sequence of interest, Cre-mediated recombination will result in deletion of the floxed sequence(s) in cre-expressing tissues in the offspring. For characterization information, see images at the Allen Institute for Brain Science website (Et(icre)1555Rdav images). | ||
| 009586 | B6(129S4)-Et(icre)754Rdav/J | Cryopreserved - Ready for recovery |
| Mice hemizygous for this enhancer trap transgene are viable and fertile, with expression of a codon-improved Cre recombinase (iCre) gene under control of the promoter/enhancer regions surrounding the site where the enhancer trap transgene randomly inserted. The donating investigator reports Cre recombinase activity in brain tissues (but may not have assessed expression in other tissues). When these enhancer trap transgenic mice are bred with mice containing a loxP-flanked sequence of interest, Cre-mediated recombination will result in deletion of the floxed sequence(s) in cre-expressing tissues in the offspring.
For characterization information, see images at the Allen Institute for Brain Science website (Et(icre)754Rdav images). | ||
| 010697 | B6(129S4)-Et(icre/ERT2)10727Rdav/J | Cryopreserved - Ready for recovery |
| Mice hemizygous for this enhancer trap transgene are viable and fertile, with expression of the iCre-ERT2 fusion gene under control of the promoter/enhancer regions surrounding the site where the enhancer trap transgene randomly inserted. Codon-improved Cre recombinase (iCre) activity is observed in brain tissues following tamoxifen administration. The donating investigators may not have assessed expression in tissues other than brain. When these enhancer trap transgenic mice are bred with mice containing a loxP-flanked sequence of interest, tamoxifen-inducible, Cre-mediated recombination will result in deletion of the floxed sequence(s) in cre-expressing tissues in the offspring.
The iCre-ERT2 fusion protein (iCre-ERT2) consists of a codon-improved Cre recombinase [iCre] fused to a triple mutant form of the human estrogen receptor; which does not bind its natural ligand (17β-estradiol) at physiological concentrations but will bind the synthetic ..... | ||
| 007694 | B6(Cg)-Cd79btm168Mnz/J | Cryopreserved - Ready for recovery |
| Mice homozygous for this targeted insertion are viable and fertile and do not display any gross physical or behavioral abnormalities. This strain carries a targeted insertion of an 18 bp I-SceI (S. cerevisiae) endonuclease recognition site in intron 2 of the gene. Infection of B lymphocytes with a retrovirus encoding for the I-SceI meganuclease produces Igh (immunoglobulin heavy chain )-IgB (Cd79b) chromosomal translocations with breakpoints at the I-SceI sequence on the mutant allele. | ||
| 008118 | B6(Cg)-Snord116tm1Uta/J | Cryopreserved - Ready for recovery |
| Mice homozygous for this 2-loxP (floxed) allele are viable and fertile, with loxP sites flanking the Snord116 small nucleolar RNAs (snoRNAs) gene cluster. When bred to mice that express Cre recombinase, the resulting offspring will have this gene cluster deleted in the cre-expressing tissue(s). Because the Snord116 gene cluster is imprinted and only expressed from the paternal allele, breeding 2-loxP males with cre-expressing females may be required to generate deleted offspring with the knockout phenotype. The donating investigator reports that the distance between the two loxP sites (~140 kb) may reduce the recombination efficiency in somatic cells. As deletions of the Snord116 cluster are associated with Prader-Willi syndrome (PWS), mice carrying the 2-loxP (floxed) allele may be useful in generating conditional mutations for studying the role of Snord116 in growth and feeding regulation, mechanisms of obesity, and patho ..... For more information please see the full phenotype on the strain data sheet | ||
| 007665 | B6.129(C3)-Vcam1tm2Flv/J | Cryopreserved - Ready for recovery |
| These mice possess loxP sites on either side of the cytokine-responsive promoter region and exon 1 of the targeted gene. Mice that are homozygous for this floxed allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When crossed with a Cre recombinase-expressing strain, this strain is useful in eliminating tissue-specific expression of the gene (widespread deletion of expression is lethal).
For example, when crossed to a strain expressing interferon inducible Cre recombinase (see Stock No. 003556), this mutant mouse strain may be useful in studies of bone marrow nonhematopoietic cells. When crossed to a strain expressing Cre recombinase in endothelial cells (see Stock No. 004128), this mutant mouse strain may be useful in studies of lymphocyte migration. | ||
| 009652 | B6.129(Cg)-Dag1tm2.1Kcam/J | Cryopreserved - Ready for recovery |
| These mice possess loxP sites on either side of exon 2 of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. When bred to mice with a cre recombinase gene under the control of a promoter of interest, exon 2 of the targeted gene is deleted in the tissue of interest. | ||
| 006203 | B6.129(FVB)-Ahrtm3.1Bra/J | Cryopreserved - Ready for recovery |
| These mice possess loxP sites on either side of exon 2 of the targeted gene. Mice that are homozygous for this allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. Hepatic protein expression of the conditional allele (before exon 2 excision) is equivalent to wildtype by Western blot analysis. This strain may be useful in generating tissue-specific mutants of the floxed allele for use in studies including teratogenesis and xenobiotic metabolism (including dioxin and PCB), Per-Arnt-Sim transcription factors, and fetal vascular development such as ductus venosus closure.
When bred to a strain expressing Cre recombinase in hepatocytes (see Stock No. 003574 for example), this mutant mouse strain may be useful in studies of toxicology. When bred to a strain expressing Cre recombinase in endothelial cells (see Stock No. For more information please see the full phenotype on the strain data sheet | ||
| 004318 | ||