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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Fimp1em1Osb
endonuclease-mediated mutation 1, Research Institute for Microbial Diseases, Osaka University
MGI:6460465
Summary 1 genotype
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Fimp1em1Osb/Fimp1em1Osb involves: C57BL/6NJcl * DBA/2NJcl MGI:6460468


Genotype
MGI:6460468
hm1
Allelic
Composition
Fimp1em1Osb/Fimp1em1Osb
Genetic
Background
involves: C57BL/6NJcl * DBA/2NJcl
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Fimp1em1Osb mutation (2 available); any Fimp1 mutation (16 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
reproductive system
N
• no gross abnormalities in testes morphology are detected
• males are severely subfertile with an average of 0.5 +/- 0.8 pups per plug compared to 8.5 +/- 1.7 for wild-type controls
• sperm penetrate the zona pellucida but rarely fertilize oocytes in vitro
• sperm show an impaired ability to fuse with zona pellucida free oocytes





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
05/12/2026
MGI 6.24
The Jackson Laboratory