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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Cry2+
wild type
MGI:2435589
Summary 1 genotype
Jump to Allelic Composition Genetic Background Genotype ID
cx1
Cry1tm1Jhjh/Cry1tm1Jhjh
Cry2tm1Jhjh/Cry2+
involves: 129P2/OlaHsd * C57BL/6 MGI:4943718


Genotype
MGI:4943718
cx1
Allelic
Composition
Cry1tm1Jhjh/Cry1tm1Jhjh
Cry2tm1Jhjh/Cry2+
Genetic
Background
involves: 129P2/OlaHsd * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Cry1tm1Jhjh mutation (0 available); any Cry1 mutation (40 available)
Cry2tm1Jhjh mutation (0 available); any Cry2 mutation (43 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
behavior/neurological
• under dark:dark conditions, mice exhibit a shorter free-running rhythm that gradually progresses into arrhythmicity unlike in wild-type mice





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
01/28/2026
MGI 6.24
The Jackson Laboratory