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| These Oct4-neo mutant mice may be useful for the selection of induced pluripotent stem (iPS) cells. | |||||||||
Type Mutant Stock; Targeted Mutation; Mating System Heterozygote x Heterozygote (Female x Male) Species laboratory mouse Generation F?+ (19-AUG-08) Donating Investigator Rudolf Jaenisch, Whitehead Institute (MIT) Description
Mice homozygous for this Oct4-neo mutation are viable and fertile, harboring an IRES-GFPneo fusion cassette downstream of exon 5 of the Oct4 (Pou5f1) gene. While sufficient neomycin-resistance activity is observed in embryonic stem cells, no visible GFP fluorescence is reported. When treated with specific transcription factors (Oct4, Sox2, c-Myc and Klf4), some Oct4-neo murine embryonic fibroblasts (MEFs) have the properties of induced pluripotent stem (iPS) cells. Such iPS cells have the DNA methylation, gene expression and chromatin state of embryonic stem cells and can form viable chimeras, contribute to the germ line, and generate live late-term embryos when injected into tetraploid blastocysts. These Oct4-neo mutant mice may be useful for the selection of iPS cells (i.e. epigenetic reprogramming of somatic cells into pluripotent embryonic stem cells).Of note, these Oct4-neo mutant mice may also be used in conjunction with Oct4-EGFP mice (Stock No. 008214); a similar mutant strain bearing an EGFP-expressing mutation from the Oct4 locus.
Development
The Oct4-IRES-GFPneo targeting vector was designed to insert an IRES-GFPneo fusion cassette downstream of exon 5 of the Oct4 (Pou5f1) gene. This construct was microinjected into (C57BL/6 x 129S4Sv/Jae)F1-derived V6.5 embryonic stem (ES) cells. Correctly targeted ES cells (with sufficient neomycin-resistance activity but no visible GFP fluorescence) were injected into blastocysts. Chimeric mice were bred to C57BL/6NTac mice to establish the mutant colony. The resulting Oct4-neo mutant mice were maintained on a mixed B6;129S4 genetic background prior to arrival at The Jackson Laboratory.
| Control | ||
|---|---|---|
| Wild-type from the colony | ||
| 101043 B6129SF1/J | (approximate) | |
| 101045 B6129SF2/J | (approximate) | |
| Considerations for Choosing Controls | ||
Strains carrying other alleles of Pou5f1
006911 B6;129-Gt(ROSA)26Sortm1(rtTA*M2)Jae Col1a1tm2(tetO-Pou5f1)Jae/J 008214 B6;129S4-Pou5f1tm2Jae/J 004654 B6;CBA-Tg(Pou5f1-EGFP)2Mnn/J View Strains carrying other alleles of Pou5f1 (3 strains)
Mammalian Phenotype Terms assigned by genotype
Pou5f1tm1Jae/Pou5f1tm1Jae
involves: 129S4/SvJae * C57BL/6
- normal phenotype
- no abnormal phenotype detected (MGI Ref ID J:130250)
- mice are viable and fertile; some murine embryonic fibroblasts treated with specific transcription factors (Pou5f1, Sox2, c-myc, and Klf4) have the properties of induced pluripotent stem (iPS) cells. Such iPS cells have the DNA methylation, gene expression and chromatin state of embryonic stem cells and can form viable chimeras, contribute to the germ line, and generate live late-term embryos when injected into tetraploid blastocysts.
Research Applications
This mouse can be used to support research in many areas including:
Research Tools
Cell Biology Research
Developmental Biology Research
General Purpose
Genetics Research (Mutagenesis and Transgenesis: Production of Targeted Mutations ("Knockouts"))
Genetics Research (Mutagenesis and Transgenesis: Production of Transgenic Mice)
Genetics Research (Mutagenesis and Transgenesis: Production of Transgenics)
Genetics Research (Tissue/Cell Markers)
| Allele Symbol | Pou5f1tm1Jae | ||
|---|---|---|---|
| Allele Name | targeted mutation 1, Rudolf Jaenisch | ||
| Common Name(s) | Oct4-IRES-GFPneo; Oct4-neo; | ||
| Mutation Made By | Rudolf Jaenisch, Whitehead Institute (MIT) | ||
| Strain of Origin | (C57BL/6 x 129S4/SvJae)F1 | ||
| ES Cell Line Name | v6.5 | ||
| ES Cell Line Strain | (C57BL/6 x 129S4/SvJae)F1 | ||
| Gene Symbol and Name | Pou5f1, POU domain, class 5, transcription factor 1 | ||
| Chromosome | 17 | ||
| Gene Common Name(s) | MGC22487; OCT3; OCT4; OTF3; OTF4; Oct-3; Oct-3/4; Oct-4; Oct3/4; Otf-3; Otf-4; Otf3; Otf3-rs7; Otf3g; Otf4; octamer binding transcription factor 3; octamer binding transcription factor 3 related sequence 7; octamer binding transcription factor 4; | ||
| General Note | When treated with specific transcription factors (Oct4, Sox2, c-Myc and Klf4), some Oct4-neo murine embryonic fibroblasts (MEFs) have the properties of induced pluripotent stem (iPS) cells. Such iPS cells have the DNA methylation, gene expression and chromatin state of embryonic stem cells and can form viable chimeras, contribute to the germ line, and generate live late-term embryos when injected into tetraploid blastocysts. | ||
| Molecular Note | The Oct4-IRES-GFPneo targeting vector was designed to insert an IRES-GFPneo fusion cassette downstream of exon 5. While sufficient neomycin-resistance activity is observed in embryonic stem cells, no visible GFP fluorescence is reported. [MGI Ref ID J:130250] | ||
Genotyping Protocols
Pou5f1tm1Jae, SEP PCR, vers. 1
Helpful Links
Optimizing PCR Protocols
Wernig M; Meissner A; Foreman R; Brambrink T; Ku M; Hochedlinger K; Bernstein BE; Jaenisch R. 2007. In vitro reprogramming of fibroblasts into a pluripotent ES-cell-like state. Nature 448(7151):318-24. [PubMed: 17554336] [MGI Ref ID J:130250]
Pou5f1tm1Jae related
Hanna J; Wernig M; Markoulaki S; Sun CW; Meissner A; Cassady JP; Beard C; Brambrink T; Wu LC; Townes TM; Jaenisch R. 2007. Treatment of sickle cell anemia mouse model with iPS cells generated from autologous skin. Science 318(5858):1920-3. [PubMed: 18063756] [MGI Ref ID J:130467]
Colony Maintenance
Breeding & Husbandry When maintaining a live colony, homozygous mice may be bred. Diet Information LabDiet® 5K52/5K67
This strain is currently Under Development for Distribution Colony.
To register your interest in this strain go to the Strain Interest Form.
Estimated Available for Sale Date: 11-NOV-08
Please note: Estimated available for sale dates are provided to keep customers better informed on strains under development. Please note that our Colony Managers routinely monitor the target date and edit it based on breeding performance and other factors. The length of time it takes to make a new strain available for sale depends on genotype, age, number of animals sent by the Donating Investigator, breeding performance, additional strain development (backcrossing, making homozygous), and anticipated demand for the strain/interest registered.
View All Strains Under Development
| Control | ||
|---|---|---|
| Wild-type from the colony | ||
| 101043 B6129SF1/J | (approximate) | |
| 101045 B6129SF2/J | (approximate) | |
| 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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