About   Help   FAQ
Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID 		Bmal1+
wild type
MGI:2434674
Summary 2 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
ht1
 		Bmal1tm1Bra/Bmal1+ involves: 129 * C57BL/6 MGI:5302034
cx2
 		Bmal1tm1Bra/Bmal1+
Usp2tm1.1Bjc/Usp2+ 		involves: 129 * C57BL/6 MGI:5302035


Genotype
MGI:5302034
ht1
Allelic
Composition		 Bmal1tm1Bra/Bmal1+
Genetic
Background		 involves: 129 * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Bmal1tm1Bra mutation (1 available); any Bmal1 mutation (139 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
behavior/neurological
delayed circadian behavior phase ( J:177916 )
• significantly enhanced phase delays to light exposure beginning at expected dark (ZT12) with modest enhancements at low irradiance levels and more pronounced delays at higher irradiance levels




Genotype
MGI:5302035
cx2
Allelic
Composition		 Bmal1tm1Bra/Bmal1+
Usp2tm1.1Bjc/Usp2+
Genetic
Background		 involves: 129 * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Bmal1tm1Bra mutation (1 available); any Bmal1 mutation (139 available)
Usp2tm1.1Bjc mutation (1 available); any Usp2 mutation (36 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
behavior/neurological
delayed circadian behavior phase ( J:177916 )
• significantly enhanced phase delays to light exposure beginning at expected dark (ZT12) at low irradiance levels but not at higher irradiance levels




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)
Citing These Resources
Funding Information
Warranty Disclaimer, Privacy Notice, Licensing, & Copyright
Send questions and comments to User Support. 		last database update
01/20/2026
MGI 6.24 		The Jackson Laboratory