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Phenotypes Associated with This Genotype
Genotype
MGI:5897857
Allelic
Composition
Braftm1Mmcm/Braf+
Trp53tm3.1Tyj/Trp53+
Tg(TPO-cre/ERT2)1139Tyj/0
Genetic
Background
involves: 129P2/OlaHsd * 129S4/SvJae * C57BL/6 * C57BL/6NTac
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Braftm1Mmcm mutation (4 available); any Braf mutation (62 available)
Tg(TPO-cre/ERT2)1139Tyj mutation (1 available)
Trp53tm3.1Tyj mutation (1 available); any Trp53 mutation (237 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• tamoxifen treated mice exhibit shortened survival

endocrine/exocrine glands
• tamoxifen treated mice develop large papillary thyroid carcinoma that exhibit features associated with aggressive behavior including solid growth, tall cell morphology, focal necrosis, and hobnail features
• about 50% of mice with papillary thyroid carcinoma acquire poorly differentiated thyroid carcinoma or undifferentiated anaplastic thyroid carcinoma

neoplasm
• tamoxifen treated mice develop large papillary thyroid carcinoma that exhibit features associated with aggressive behavior including solid growth, tall cell morphology, focal necrosis, and hobnail features
• about 50% of mice with papillary thyroid carcinoma acquire poorly differentiated thyroid carcinoma or undifferentiated anaplastic thyroid carcinoma


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
01/20/2026
MGI 6.24
The Jackson Laboratory