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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Trp53tm2Xu
targeted mutation 2, Yang Xu
MGI:3629221
Summary 2 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Trp53tm2Xu/Trp53tm2Xu involves: 129S6/SvEvTac MGI:3630330
cx2
Trp53tm2Xu/Trp53tm2Xu
Xrcc4tm1Fwa/Xrcc4tm1Fwa
involves: 129P2/OlaHsd * 129S6/SvEvTac MGI:3630332


Genotype
MGI:3630330
hm1
Allelic
Composition
Trp53tm2Xu/Trp53tm2Xu
Genetic
Background
involves: 129S6/SvEvTac
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Trp53tm2Xu mutation (2 available); any Trp53 mutation (240 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• mice develop leukemias, fibrosarcomas, granuloma and adenomas; these are rarely seen in Trp53tm1Tyj homozygous mice
• mice are cancer prone but develop tumors in a wide spectrum of tissues, with a delayed onset compared with Trp53-null mice which develop thymic lymphomas primarily within 6 months of age

hematopoietic system
• thymocytes are essentially resistant to Trp53-mediated apoptosis
• proliferation of thymocytes after stimulation with PMA or Ionomycin is slower than Trp53tm1Tyj cells at the later time point, but similar to wild-type at the earlier time point

immune system
• thymocytes are essentially resistant to Trp53-mediated apoptosis
• proliferation of thymocytes after stimulation with PMA or Ionomycin is slower than Trp53tm1Tyj cells at the later time point, but similar to wild-type at the earlier time point

cellular
• thymocytes are essentially resistant to Trp53-mediated apoptosis
• proliferation of thymocytes after stimulation with PMA or Ionomycin is slower than Trp53tm1Tyj cells at the later time point, but similar to wild-type at the earlier time point




Genotype
MGI:3630332
cx2
Allelic
Composition
Trp53tm2Xu/Trp53tm2Xu
Xrcc4tm1Fwa/Xrcc4tm1Fwa
Genetic
Background
involves: 129P2/OlaHsd * 129S6/SvEvTac
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Trp53tm2Xu mutation (2 available); any Trp53 mutation (240 available)
Xrcc4tm1Fwa mutation (0 available); any Xrcc4 mutation (26 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
N
• embryonic lethality seen in Xrcc4tm1Fwa homozygotes is rescued when crossed to a Trp53tm2Xu mouse

growth/size/body
• mice are runted

reproductive system
• atrophy is detected with age

skeleton
• mice develop acute curvature of the spine as they age

neoplasm
• double knockouts rarely develop tumors (only 2/34 develop thymic tumors at 93 and 128 days of age) compared with Trp53tm2Xu homozygotes

integument
• skin thickness is reduced with age

endocrine/exocrine glands
• atrophy is detected with age





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Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Models of Human Cancer database (MMHCdb) (formerly Mouse Tumor Biology (MTB)), Gene Ontology (GO)
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last database update
12/10/2024
MGI 6.24
The Jackson Laboratory