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Phenotypes Associated with This Genotype
Genotype
MGI:5496709
Allelic
Composition		 Play44/Play44+
Genetic
Background		 involves: BALB/c * C3H/HeH
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Play44 mutation (2 available); any Play44 mutation (2 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
behavior/neurological
abnormal circardian behavior entrainment ( J:169366 )
• shows a large entrainment response to light and phase advancement in a 12:12 light:dark cycle

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
01/28/2026
MGI 6.24 		The Jackson Laboratory