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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID 		Saysd1em1Yogo
endonuclease-mediated mutation 1, Keiichiro Yogo
MGI:7580962
Summary 1 genotype
Jump to Allelic Composition Genetic Background Genotype ID
hm1
 		Saysd1em1Yogo/Saysd1em1Yogo C57BL/6N-Saysd1em1Yogo MGI:7580964


Genotype
MGI:7580964
hm1
Allelic
Composition		 Saysd1em1Yogo/Saysd1em1Yogo
Genetic
Background		 C57BL/6N-Saysd1em1Yogo
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Saysd1em1Yogo mutation (0 available); any Saysd1 mutation (16 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
cellular
oligozoospermia ( J:340694 )
• cauda epididymis of homozygous mice contained slightly less sperm, suggesting a role in sperm production

normal phenotype
no abnormal phenotype detected ( J:340694 )
• homozygous knockout mice are viable and fertile

reproductive system
oligozoospermia ( J:340694 )
• cauda epididymis of homozygous mice contained slightly less sperm, suggesting a role in sperm production




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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Send questions and comments to User Support. 		last database update
09/30/2025
MGI 6.24 		The Jackson Laboratory