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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Hsf2tm1Mmr
targeted mutation 1, Michel Morange
MGI:2182620
Summary 1 genotype
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Hsf2tm1Mmr/Hsf2tm1Mmr involves: 129S2/SvPas * C57BL/6 MGI:3850978


Genotype
MGI:3850978
hm1
Allelic
Composition
Hsf2tm1Mmr/Hsf2tm1Mmr
Genetic
Background
involves: 129S2/SvPas * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Hsf2tm1Mmr mutation (1 available); any Hsf2 mutation (38 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
reproductive system
• some mice exhibit hemorrhagic large follicles with a trapped oocyte
• 44% of eggs produced by female mice are abnormal with eggs that are fragmented, without polar bodies, or unfertilized
• 70% of eggs produced by superovulated female mice are abnormal
• females produce fewer oocytes
• however, all superovulated females produce normal numbers of oocytes
• synaptonemal complexes of pachytene spermatocytes are malformed
• in some mice
• some mice exhibit hemorrhagic large follicles with a trapped oocyte
• some mice exhibit hemorrhagic large follicles with a trapped oocyte
• seminiferous tubules lack meiotic spermatocytes and post-meiotic spermatids
• epididymis contain fewer sperm than in wild-type mice
• spermatocytes undergo apoptosis during late pachytene of meiotic prophase and during meiotic divisions
• synaptonemal complexes of pachytene spermatocytes are malformed
• female mice are hypofertile with some failing to produce offspring and others producing smaller than normal litters
• however, all superovulated females produce oocytes
• female mice are hypofertile with some failing to produce offspring and others producing smaller than normal litters
• offspring of homozygous females exhibit increased embryonic lethality at E9.5 compared to offspring of heterozygous mice

nervous system

cardiovascular system
• some mice exhibit hemorrhagic large follicles with a trapped oocyte

endocrine/exocrine glands
• some mice exhibit hemorrhagic large follicles with a trapped oocyte
• in some mice
• some mice exhibit hemorrhagic large follicles with a trapped oocyte
• some mice exhibit hemorrhagic large follicles with a trapped oocyte

cellular
• 44% of eggs produced by female mice are abnormal with eggs that are fragmented, without polar bodies, or unfertilized
• 70% of eggs produced by superovulated female mice are abnormal
• females produce fewer oocytes
• however, all superovulated females produce normal numbers of oocytes
• seminiferous tubules lack meiotic spermatocytes and post-meiotic spermatids
• epididymis contain fewer sperm than in wild-type mice
• spermatocytes undergo apoptosis during late pachytene of meiotic prophase and during meiotic divisions
• synaptonemal complexes of pachytene spermatocytes are malformed
• synaptonemal complexes of pachytene spermatocytes are malformed
• offspring of homozygous females exhibit increased embryonic lethality at E9.5 compared to offspring of heterozygous mice

growth/size/body
• some mice exhibit hemorrhagic large follicles with a trapped oocyte





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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