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Phenotypes Associated with This Genotype
Genotype
MGI:3798307
hm1
Allelic
Composition
Esr2tm1Mma/Esr2tm1Mma
Genetic
Background
involves: 129S2/SvPas
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Esr2tm1Mma mutation (0 available); any Esr2 mutation (34 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
cellular
• increased gonocytes after birth with decreased gonocyte apoptosis

reproductive system
N
• contrary to previous reports, no hyperplasia of the prostate is observed (J:64426)
• mice exhibit normal numbers of Sertoli and Leydig cells and level of testicular testosterone production (J:105626)
• increased gonocytes after birth with decreased gonocyte apoptosis
• despite normal follicle development, the corpus lutea are scarce or absent
• despite the fertility of male mice, female mice exhibit reduced fertility to infertility
• however, female genital tract morphology is normal

skeleton
N
• mice exhibit normal bone mineral content in the lumbar spine and hind leg and normal bone area and bone mineral density in the midfemur
• slightly
• mice exhibit lower volumetric bone mineral density in the lumbar spine and distal femur compared with wild-type mice
• unloaded and loaded ulna from female mice exhibit increased bone formation measurements compared with wild-type mice
• female mice exhibit increased bone stiffness and mechanical loading compared with wild-type mice
• however, male mice exhibit normal bone stiffness and mechanical loading

homeostasis/metabolism
N
• unlike in previous studies, IGF-I levels are normal
• when treated with gonadotropins to induce superovulation, half of mice failed to ovulate and the other half exhibited reduced yields compared to in similarly treated wild-type mice because follicles reach a preovulatory stage but fail to mature
• ovariectomized mice treated with 17beta-estradiol exhibit delayed wound healing with increased neutrophil infiltration compared with control mice

renal/urinary system
N
• contrary to previous reports, no hyperplasia of the urinary bladder is observed

adipose tissue
• in female, but not male, mice

limbs/digits/tail
• slightly

endocrine/exocrine glands
• despite normal follicle development, the corpus lutea are scarce or absent

hematopoietic system
• in the wounds of ovariectomized mice treated with 17beta-estradiol

immune system
• in the wounds of ovariectomized mice treated with 17beta-estradiol


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
03/24/2026
MGI 6.24
The Jackson Laboratory