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Phenotypes Associated with This Genotype
Genotype
MGI:3774768
Allelic
Composition
Cdkn2atm1Cjs/Cdkn2a+
Genetic
Background
involves: 129X1/SvJ * C57BL/6 * NIH/OlaHsd
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Cdkn2atm1Cjs mutation (5 available); any Cdkn2a mutation (59 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• by 20 weeks after a single dose of DMBA and twice weekly application of TPA for 15 weeks, mutants show an increase in papilloma number and size compared to wild-type
• tumors of heterozygous mice show loss of heterozygosity during benign to malignant conversion
• by 28 weeks, 60% of DMBA/TPA treated heterozygotes develop carcinomas compared to 25% of wild-type
• mutants have an average of 2.6 more papillomas than wild-type after DMBA/TPA treatment

homeostasis/metabolism
• by 20 weeks after a single dose of DMBA and twice weekly application of TPA for 15 weeks, mutants show an increase in papilloma number and size compared to wild-type
• tumors of heterozygous mice show loss of heterozygosity during benign to malignant conversion


Contributing Projects:
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
01/06/2026
MGI 6.24
The Jackson Laboratory