Search Criteria: Research Area is "Research Tools: FLP-FRT System"
| Stock Number |
Strain Name Phenotype |
Standard Supply |
| 003946 | 129S4/SvJaeSor-Gt(ROSA)26Sortm1(FLP1)Dym/J | Repository- Live |
| This knock-in strain expresses a variant of the Saccharomyces cerevisiae FLP1 recombinase gene under the direction of the Gt(ROSA)26Sor promoter. The FLPe recombinase variant exhibits enhanced thermostability with recombination activity being four-fold and ten-fold that of wild type FLP at 37C and 40C, respectively. Homozygous mice for the knock-in allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. The Gt(ROSA)26Sor promoter drives expression in a constitutive fashion from preimplantation onward. Extensive target gene recombination can be achieved in most tissue types, including cells of the developing germ line. This mutant strain is suitable for use as a deleter strain and serves as a source of FLP1-expressing primary cell lines. | ||
| 005703 | B6.Cg-Tg(ACTFLPe)9205Dym/J | Repository- Live |
| This transgenic strain expresses a variant of the Saccharomyces cerevisiae FLP1 recombinase gene under the direction of the human ACTB promoter. The FLPe recombinase variant exhibits enhanced thermostability with recombination activity being four-fold and ten-fold that of wildtype FLP at 37oC and 40oC, respectively. Mice that are hemizygous for the transgenic allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. Recombinase activity is detected in a wide variety of tissues (spinal cord, heart, gonad, adrenal) as early as embryonic day 10.5. This deleter strain is a suitable alternative to, and complement with the Cre-loxP system for in vivo genetic engineering.
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 coul
..... | ||
| 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 | ||
| 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 | ||
| 003800 | B6;SJL-Tg(ACTFLPe)9205Dym/J | Repository- Live |
| This transgenic strain expresses a variant of the Saccharomyces cerevisiae FLP1 recombinase gene under the direction of the human ACTB promoter. The FLPe recombinase variant exhibits enhanced thermostability with recombination activity being four-fold and ten-fold that of wildtype FLP at 37C and 40C, respectively. Mice that are hemizygous for the transgenic allele are viable, fertile, normal in size and do not display any gross physical or behavioral abnormalities. Recombinase activity is detected in a wide variety of tissues (spinal cord, heart, gonad, adrenal) as early as embryonic day 10.5. This deleter strain is a suitable alternative to, and complement with the Cre-loxP system for in vivo genetic engineering. | ||
| 004598 | B6;129S4-Gt(ROSA)26Sortm2Dym/J | Repository-Cryopreserved |
| These mice possess a disrupted human placental alkaline phosphatase (ALPP) transgene inserted into the Gt(ROSA)26Sor locus. Expression of the ALPP transgene is contingent upon Flp-mediated excision of the FRT-flanked STOP cassette placed between the ALPP peptide encoding sequence and the Gt(ROSA)26Sor promoter. This mutant strain serves as a reporter strain, with successful Flp recombinase-mediated excision indicated by ALPP activity. 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 broad expression of FLP1 recombinase (see Stock No. 003946 for example), this mutant mouse strain may be useful as an indicator strain for marking most cells in the developing and adult mouse. | ||
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How to Register Interest
Please indicate your interest in purchasing any of the strains listed below when they become available for distribution by checking the box next to the strain(s) of interest and then selecting the "Continue" button which leads to an Interest Form.View a Data sheet for New Strains Under Development
Select the strain name to link to the strain data sheet.
New Strains Under DevelopmentThe Jackson Laboratory serves as a worldwide distributor and national repository for common and rare strains of inbred mice and mice carrying spontaneous mutations or induced mutations (i.e., transgenic, targeted/"knockout", or chemically induced mutations). At any one time, we have over 100 strains at various stages of development and colony expansion. Strains "Under Development" fall into two categories depending on the anticipated demand from the scientific community.
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It is VERY IMPORTANT that you register interest in strains Under Development. The anticipated demand for a strain enables us to determine effectively the distribution plan for each strain Under Development. Registering interest also provides benefits to you (including advance notification of pending availability). Whether a strain is made available from a live colony OR from our cryopreservation repository, you may want to consider the option of Dedicated Supply. To learn more about Dedicated Supply, go to Services.
- Strains that will be made available from a live distribution colony at The Jackson Laboratory.
These strains are designated as: "Under Development for Distribution Colony"- Strains that will be made available through the Cryopreservation Repository.
These strains are designated as: "Under Development for Cryopreservation Repository"
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