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Phenotypes Associated with This Genotype
Genotype
MGI:3522463
Allelic
Composition
Cry2tm1Jhjh/Cry2tm1Jhjh
Per2tm1Brd/Per2tm1Brd
Genetic
Background
involves: 129P2/OlaHsd * 129S7/SvEvBrd * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Cry2tm1Jhjh mutation (0 available); any Cry2 mutation (43 available)
Per2tm1Brd mutation (1 available); any Per2 mutation (73 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
skeleton
• mice exhibit decreased bone formation rate compared with wild-type mice

behavior/neurological
N
• double homozygotes entrain to the LD cycle, displaying locomotor activity patterns similar to those of wild-type
• unexpectedly, double homozygotes are able to maintain a circadian rhythm in DD (rescue of circadian rhythmicity)
• profiles of cycling clock genes in the SCN indicate normal circadian behavior and core oscillator performance


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
03/31/2026
MGI 6.24
The Jackson Laboratory