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Phenotypes Associated with This Genotype
Genotype
MGI:3719285
Allelic
Composition		 Tyrp1b/Tyrp1b-3CHLe
Genetic
Background		 involves: 101/Rl * C3H/Rl
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tyrp1b mutation (28 available); any Tyrp1 mutation (160 available)
Tyrp1b-3CHLe mutation (0 available); any Tyrp1 mutation (160 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
pigmentation
abnormal coat/hair pigmentation ( J:100221 )
• hair eumelanin pigment is brown

growth/size/body
decreased body weight ( J:100221 )
• weight is 45% that of same-sexed littermates

reproductive system

vision/eye

integument
abnormal coat/hair pigmentation ( J:100221 )
• hair eumelanin pigment is brown

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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Funding Information
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Send questions and comments to User Support. 		last database update
01/28/2026
MGI 6.24 		The Jackson Laboratory