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Phenotypes Associated with This Genotype
Genotype
MGI:4459317
Allelic
Composition
Esr1tm1Sakh/Esr1tm1Sakh
Tg(Wap-cre)11738Mam/?
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6 * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Esr1tm1Sakh mutation (0 available); any Esr1 mutation (69 available)
Tg(Wap-cre)11738Mam mutation (2 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
endocrine/exocrine glands
• mosaic mammary gland phenotype in the first lactation
• mild defect in tertiary branching during first lactation
• aberrantly dilated ducts with few side branches during second lactation
• some normal sized alveoli in first lactation
• regions of reduced growth in the first lactation
• fewer lobular alveoli during second lactation
• one third of first lactation pups are malnurished with body weights 17% less than controls at 21 days
• more severe growth retardation in second lactation pups with body weights 50% of controls at 6 days
• normal milk quality

integument
• mosaic mammary gland phenotype in the first lactation
• mild defect in tertiary branching during first lactation
• aberrantly dilated ducts with few side branches during second lactation
• some normal sized alveoli in first lactation
• regions of reduced growth in the first lactation
• fewer lobular alveoli during second lactation
• one third of first lactation pups are malnurished with body weights 17% less than controls at 21 days
• more severe growth retardation in second lactation pups with body weights 50% of controls at 6 days
• normal milk quality


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
12/30/2025
MGI 6.24
The Jackson Laboratory