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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Esr1tm1Mma
targeted mutation 1, Manuel Mark
MGI:2386759
Summary 1 genotype
Jump to Allelic Composition Genetic Background Genotype ID
cn1
Ctsktm1(cre)Ska/Ctsk+
Esr1tm1Mma/Esr1tm1Mma
involves: 129S2/SvPas * C57BL/6 * SJL MGI:3764468


Genotype
MGI:3764468
cn1
Allelic
Composition
Ctsktm1(cre)Ska/Ctsk+
Esr1tm1Mma/Esr1tm1Mma
Genetic
Background
involves: 129S2/SvPas * C57BL/6 * SJL
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Ctsktm1(cre)Ska mutation (0 available); any Ctsk mutation (31 available)
Esr1tm1Mma mutation (0 available); any Esr1 mutation (68 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
skeleton
• females mice have 1.5 times more osteoclasts on bone surface compared to wild-type females
• osteoclasts are resistant to estrogen induced apoptosis due to a failure to produce fas-ligand
• females, but not males, have decreased density of the femur
• 12 week old female but not male mice have 1.6 fold loss of trabecular bone volume that is indicative of osteoporosis
• loss of bone volume is not increased upon ovariectomy
• treatment with estrogen fails to rescue the bone loss
• increased mineral apposition rate in female mice
• increased bone formation rate in female mice
• females have increased rates of bone resorption as measured by eroded surface per bone surface

hematopoietic system
• females mice have 1.5 times more osteoclasts on bone surface compared to wild-type females
• osteoclasts are resistant to estrogen induced apoptosis due to a failure to produce fas-ligand

immune system
• females mice have 1.5 times more osteoclasts on bone surface compared to wild-type females
• osteoclasts are resistant to estrogen induced apoptosis due to a failure to produce fas-ligand





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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
11/12/2024
MGI 6.24
The Jackson Laboratory