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Phenotypes Associated with This Genotype
Genotype
MGI:2654822
Allelic
Composition
A/?
Lystbg/Lystbg
Tyrp1b/Tyrp1b
Genetic
Background
Not Specified
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
A mutation (80 available); any a mutation (468 available)
Lystbg mutation (6 available); any Lyst mutation (227 available)
Tyrp1b mutation (28 available); any Tyrp1 mutation (160 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
pigmentation
• on an agouti brown (A-bb) background, beige mice exhibit an overall cafe-au-lait coat color
• Background Sensitivity: the relatively greater dilution effect noted on basal hair is not as pronounced in brown beige as in black beige mice
• Background Sensitivity: on an agouti brown (A-bb) background, newborn beige mice exhibit lighter eyes than on an agouti black (A-B-) background

vision/eye
• Background Sensitivity: on an agouti brown (A-bb) background, newborn beige mice exhibit lighter eyes than on an agouti black (A-B-) background

integument
• on an agouti brown (A-bb) background, beige mice exhibit an overall cafe-au-lait coat color
• Background Sensitivity: the relatively greater dilution effect noted on basal hair is not as pronounced in brown beige as in black beige mice


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
12/30/2025
MGI 6.24
The Jackson Laboratory