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| These transgenic mice express the reverse tetracycline-controlled transactivator (rtTA) protein under the control of the human keratin 14 (KRT14) gene promoter (active in embryonic and postnatal basal cells of the skin). When mated to a second transgenic strain carrying a gene of interest under the regulatory control of a tetracycline-responsive promoter element (tetO), expression of the target gene may be regulated by the tetracycline analog, doxycycline (dox); in the presence of dox, transcription of the target gene is induced in cells where rtTA is expressed. This strain provides a Tet-On tool that allows the inducible expression of genes in cells expressing KRT14 for hair and skin research. | |||||||||
Type Coisogenic; Mutant Strain; Transgenic; Additional information on Genetically Engineered Mutant Mice. Mating System Noncarrier x Hemizygote (Female x Male) Species laboratory mouse Generation ?+N2 (23-SEP-08) Donating Investigator Elaine Fuchs, The Rockefeller University Description
Mice that are hemizygous or homozygous for this transgenic insert are viable, fertile, normal in size, and do not display any gross physical or behavioral abnormalities. These transgenic mice express the reverse tetracycline-controlled transactivator (rtTA) protein under the control of the human keratin 14 (KRT14) gene promoter (active in embryonic and postnatal basal cells of the skin). When mated to a second transgenic strain carrying a gene of interest under the regulatory control of a tetracycline-responsive promoter element (tetO), expression of the target gene may be regulated by the tetracycline analog, doxycycline (dox); in the presence of dox, transcription of the target gene is induced in cells where rtTA is expressed. This strain provides a Tet-On tool that allows the inducible expression of genes in cells expressing KRT14 for hair and skin research.Development
A transgenic vector incorporating the human keratin 14 promoter/enhancer, rabbit beta globin 5' untranslated region (UTR) for stabilization of transcript, the reverse tetracycline regulatable transactivator protein (rtTA2S-M2-VP16), and the keratin 14 3' UTR was injected into FVB embryos. This strain has been maintained on an FVB background by the donating laboratory.
| Control | ||
|---|---|---|
| Noncarrier | ||
| 001800 FVB/NJ | ||
| Considerations for Choosing Controls | ||
Strains carrying other alleles of KRT14
006403 129S.B6-Tg(KRT14-Esr1/HRAS)1Pkha/J 006661 129S.B6-Tg(KRT14-RAF1/ESR1)1Pkha/J 004853 B6.C3-Tg(KRT14-Birc5)19Gros/J 007622 B6;SJL-Tg(KRT14-Hr)551Cct/J 007678 B6;SJL-Tg(KRT14-rtTA)208Jek/J 002980 C57BL/6-Tg(Cd152Ig)1Jbs/J 006822 FVB-Tg(KRT14-MAP2K1/Esr1)12Pkha/J 005705 FVB-Tg(KRT14-Vegfa)3Dtm/J 004782 STOCK Tg(KRT14-cre)1Amc/J 005107 STOCK Tg(KRT14-cre/Esr1)20Efu/J View Strains carrying other alleles of KRT14 (10 strains)
Strains carrying other alleles of rtTA
005670 B6.Cg-Gt(ROSA)26Sortm1(rtTA,EGFP)Nagy/J 006235 B6.Cg-Tg(SFTPC-rtTA)5Jaw/J 006232 B6.Cg-Tg(Scgb1a1-rtTA)1Jaw/J 007678 B6;SJL-Tg(KRT14-rtTA)208Jek/J 006245 C.Cg-Tg(SFTPC-rtTA)5Jaw/J 006242 C.Cg-Tg(Scgb1a1-rtTA)1Jaw/J 004127 FVB-Tg(Nes-rtTA)306Rvs/J 006225 FVB.Cg-Tg(SFTPC-rtTA)5Jaw/J 006222 FVB.Cg-Tg(Scgb1a1-rtTA)1Jaw/J 008202 FVB/N-Tg(NPHS2-rtTA2*M2)1Jbk/J 006875 FVB/N-Tg(Tagln-rtTA)E1Jwst/J 004602 NOD.Cg-Tg(Ins2-rtTA)2Doi/DoiJ 005734 NOD/Lt-Tg(Ins2-rtTA)1Ach/AchJ 005572 STOCK Gt(ROSA)26Sortm1(rtTA,EGFP)Nagy/J 008250 STOCK Tg(Ins2-rtTA)2Efr/J 005493 STOCK Tg(Tek-rtTA,TRE-lacZ)1425Tpr/J 003273 STOCK Tg(rtTAhCMV)4Bjd/J View Strains carrying other alleles of rtTA (17 strains)
Tet Expression Systems
View Mammalian Phenotype Terms
Mammalian Phenotype Terms
assigned by genotype
Tg(KRT14-rtTA)F42Efu/0
involves: FVB
- normal phenotype
- no abnormal phenotype detected (MGI Ref ID J:116057)
- hemizygotes are viable, fertile, and normal in size; mice do not display any gross physical or behavioral abnormalities
View Research Applications
Research Applications
This mouse can be used to support research in many areas including:
Research Tools
Tet Expression Systems (tTA/rtTA Expressing Strains)
| Allele Symbol | Tg(KRT14-rtTA)F42Efu | ||
|---|---|---|---|
| Allele Name | transgene insertion F42, Elaine Fuchs | ||
| Allele Type | Transgenic (random, expressed) | ||
| Common Name(s) | K14rtTA; | ||
| Mutation Made By | Elaine Fuchs, The Rockefeller University | ||
| Strain of Origin | FVB | ||
| Site of Expression | embryonic and postnatal basal cells of the skin | ||
| Expressed Gene | rtTA, reverse tetracycline-controlled transactivator, E. coli | ||
| The tetracycline repressor gene (Tetr), arose from chemically mutated Escherichia coli genome which was screened for tetracycline dependence (Gossen and Bujard, 1992). One mutant with a four amino acid residue change (rTetR) exhibited dependence on tetracycline for induction of the targeted gene and was used in the rtTA construct (Gossen et al, 1995). rTetr was fused at the C-terminus with the viral co-activator, virion protein 16 of the herpes simplex virus (VP-16). | |||
| Promoter | KRT14, keratin 14, human | ||
| Molecular Note | A transgenic vector incorporating the human keratin 14 promoter/enhancer, rabbit beta globin 5' untranslated region (UTR) for stabilization of transcript, the reverse tetracycline regulatable transactivator protein (rtTA2S-M2-VP16), and the keratin 14 3'UTR was injected into FVB embryos. [MGI Ref ID J:116057] [MGI Ref ID J:56822] | ||
Genotyping Protocols
Tg(KRT14-rtTA)F42Efu, STD PCR, vers. 1
Helpful Links
Optimizing PCR Protocols
Nguyen H; Rendl M; Fuchs E. 2006. Tcf3 governs stem cell features and represses cell fate determination in skin. Cell 127(1):171-83. [PubMed: 17018284] [MGI Ref ID J:116057]
Tg(KRT14-rtTA)F42Efu relatedVasioukhin V; Degenstein L; Wise B; Fuchs E. 1999. The magical touch: genome targeting in epidermal stem cells induced by tamoxifen application to mouse skin. Proc Natl Acad Sci U S A 96(15):8551-6. [PubMed: 10411913] [MGI Ref ID J:56822]
Animal Health Reports
Room Number AX12
Colony Maintenance
Breeding & Husbandry When maintained as a live colony, hemizygotes may be bred to wildtype siblings or to FVB/NJ inbred mice. Mating System Noncarrier x Hemizygote (Female x Male) Diet Information LabDiet® 5K52/5K67
| Pricing for USA, Canada and Mexico shipping destinations |
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Weeks of Age Price* Gender Genotypes Provided Individual Mouse Price $236.40 Female or Male Hemizygous for Tg(KRT14-rtTA)F42Efu *Price(s) in US dollars ($)
Pairs /Price* Pair Genotype $288.65 Hemizygous for Tg(KRT14-rtTA)F42Efu x Noncarrier $288.65 Noncarrier x Hemizygous for Tg(KRT14-rtTA)F42Efu
| Supply Notes |
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| Pricing for International shipping destinations |
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Weeks of Age Price* Gender Genotypes Provided Individual Mouse Price $307.40 Female or Male Hemizygous for Tg(KRT14-rtTA)F42Efu *Price(s) in US dollars ($)
Pairs /Price* Pair Genotype $375.30 Hemizygous for Tg(KRT14-rtTA)F42Efu x Noncarrier $375.30 Noncarrier x Hemizygous for Tg(KRT14-rtTA)F42Efu
| Supply Notes |
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| Standard Supply | Repository-Live. A collection of over 1000 strains maintained as live colonies. Individual colonies are sized to meet current customer demand. Delivery for orders of 10 mice or less ranges on average from one to eight weeks; mice are generally shipped between four to six weeks of age with a maximum shipping age of ~nine weeks. Colony sizes do not generally support stringent age specifications for large volumes of mice; however custom orders and larger quantities of mice are easily arranged. Estimated ship dates for all orders provided within 48 hours of order placement. |
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| Supply Notes |
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| Control | ||
|---|---|---|
| Noncarrier | ||
| 001800 FVB/NJ | ||
| Considerations for Choosing Controls | ||
| USA, Canada and Mexico - Control Pricing Information for Genetically Engineered Mutant Strains. | ||
| International - Control Pricing Information for Genetically Engineered Mutant Strains. | ||
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