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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Crem+
wild type
MGI:2430291
Summary 1 genotype
Jump to Allelic Composition Genetic Background Genotype ID
ht1
Cremtm1Saco/Crem+ involves: 129/Sv * C57BL/6 MGI:3040663


Genotype
MGI:3040663
ht1
Allelic
Composition
Cremtm1Saco/Crem+
Genetic
Background
involves: 129/Sv * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Cremtm1Saco mutation (0 available); any Crem mutation (40 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
reproductive system
• seminal fluid from heterozygous males shows a 46% reduction in spermatozoa compared to wild-type males
• seminal fluid from heterozygous males shows a 35% decrease in the ratio of motile spermatozoa and a 2 fold increase in abnormal spermatozoa
• average litter size from heterozygous crosses is significantly smaller than heterozygous/homozygous crosses

cellular
• seminal fluid from heterozygous males shows a 46% reduction in spermatozoa compared to wild-type males
• seminal fluid from heterozygous males shows a 35% decrease in the ratio of motile spermatozoa and a 2 fold increase in abnormal spermatozoa





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
12/30/2025
MGI 6.24
The Jackson Laboratory