About   Help   FAQ
Phenotypes Associated with This Genotype
Genotype
MGI:5460860
Allelic
Composition
a/a
Genetic
Background
Not Specified
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
a mutation (166 available); any a mutation (468 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
integument
• hairs lack the yellow pigment band found in the wild-type agouti black coat
• hairs are black except for yellow hairs around ears, mammae, and perineum

pigmentation
• hairs lack the yellow pigment band found in the wild-type agouti black coat
• hairs are black except for yellow hairs around ears, mammae, and perineum


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
01/06/2026
MGI 6.24
The Jackson Laboratory