Mouse Strain Datasheet - 006440
Mouse Strain Datasheet - 006440
Ptenflox mice have loxP sites flanking exon 5 of the phosphatase and tensin homolog gene. This C57BL/6J-congenic Ptenflox strain is useful for generating Cre recombinase-inducible, tissue-specific PTEN knock-out in studies of neurogenesis, glia differentiation and cerebellar development, for example.
IMR Colony, The Jackson Laboratory
| Genetic Background | Generation |
|---|---|
|
N?+N12F10
|
| Allele Type | Gene Symbol | Gene Name |
|---|---|---|
| Targeted (Conditional ready (e.g. floxed), No functional change) | Pten | phosphatase and tensin homolog |
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.
When crossed to B6.129X1-Twist2tm1.1(cre)Dor/J mice (Stock No. 008712) expressing Cre recombinase in mesoderm-derived tissues (including chondrocytes and osteoblasts) offspring die at birth and exhibit defects in angioblast differentiation.
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 as published results become available.
A loxP site flanked targeting vector containing hygromycin resistance and thymidine kinase genes was used in the construction of this mutant. This selection cassette was inserted downstream of exon 5 of the targeted gene, and another loxP site was inserted upstream of exon 5. This construct was electroporated into 129S4/SvJae derived LW-1 embryonic stem (ES) cells, which were transiently transfected with a Cre-recombinase vector to remove the selection cassette. Correctly targeted ES cells were injected into BALB/c blastocysts. The resulting chimeric animals were crossed to BALB/cAnNTac mice before being made homozygous. The mice were then backcrossed onto the C57BL/6J background for at least five generations. As of 2016, this C57BL/6J-congenic Ptenflox strain has been backcrossed to C57BL/6J inbred mice for a total of at least 12 generations.
| Allele Name | targeted mutation 1, Hong Wu |
|---|---|
| Allele Type | Targeted (Conditional ready (e.g. floxed), No functional change) |
| Allele Synonym(s) | Ptentm1Hwu; targeted mutation 1, Hong Wu |
| Gene Symbol and Name | Pten, phosphatase and tensin homolog |
| Gene Synonym(s) | 2310035O07Rik; BZS; TEP1; A130070J02Rik; A130070J02Rik; 10q23del; MHAM; MMAC1; AI463227; PTEN1; CWS1; B430203M17Rik; DEC; RIKEN cDNA B430203M17 gene; GLM2; expressed sequence AI463227; RIKEN cDNA 2310035O07 gene; RIKEN cDNA A130070J02 gene; B430203M17Rik; 2310035O07Rik; Mmac; PTENbeta |
| Site of Expression | Pten is a widely expressed tumor suppresser gene. |
| Strain of Origin | 129S4/SvJae |
| Chromosome | 19 |
| General Note | Phenotypic Similarity to Human Syndrome: PTEN Hamartoma Tumor Syndrome (see OMIM:601728 Phosphatase And Tensin Homolog; PTEN) J:199362 |
| Molecular Note | A loxP flanked hygromycin resistance cassette was inserted 5' to exon 5, and a single loxP site was inserted 3' to exon 5, which encodes the phosphatase domain. The hygromycin cassette was removed in ES cells by transient Cre recombinase expression prior to the production of chimeric mice, leaving a single loxP site in place of the cassette. These insertions do not appear to have any effect on the normal function of the gene. |
| Mutations Made By | Hong Wu, UCLA |
When maintaining a live colony, these mice are bred as homozygotes.
When using the Ptenflox mouse strain in a publication, please cite the originating article(s) and include JAX stock #006440 in your Materials and Methods section.
| Service | Genotype | Price |
|---|---|---|
| Heterozygous for Pten<tm1Hwu> |
We will fulfill your order by providing at least two carriers for each strain ordered. The total number, sex, and genotypes provided will vary, although typically 8 or more animals are provided. Please check genotypes which will be recovered. While the genotypes of all animals produced will be communicated to you prior to scheduling shipment, the genotypes of animals provided may not reflect the mating scheme and genotypes described in the strain description. Animals are typically ready to ship in 11-14 weeks. If a second recovery is required to produce the minimum number of animals, then delivery time would increase to approximately 25 weeks. If we fail to produce animals of the correct genotype, you will not be charged. We cannot guarantee the reproductive success of mice shipped to your facility. If the mice are lost after the first three days (post-arrival) or do not produce progeny at your facility, a new order and fee will be necessary.
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