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Phenotypes Associated with This Genotype
Genotype
MGI:5496897
Allelic
Composition
Tg(MMTV-Erbb2*,-cre)1Mul/0
Genetic
Background
involves: FVB
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tg(MMTV-Erbb2*,-cre)1Mul mutation (1 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
neoplasm
• 50% of nulliparous female mice develop tumors by 197 days of age, compared to nulliparous wild-type females which do not develop tumors (during period of observation)
• 50% of nulliparous female mice develop tumors by 197 days of age, compared to wild-type females which do not develop tumors (during period of observation)

endocrine/exocrine glands
• tissue adjacent to primary tumors display abnormal luminal growth, possibly an early sign of tumors
• 50% of nulliparous female mice develop tumors by 197 days of age, compared to nulliparous wild-type females which do not develop tumors (during period of observation)

integument
• tissue adjacent to primary tumors display abnormal luminal growth, possibly an early sign of tumors
• 50% of nulliparous female mice develop tumors by 197 days of age, compared to nulliparous wild-type females which do not develop tumors (during period of observation)


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