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Phenotypes Associated with This Genotype
Genotype
MGI:2445833
Allelic
Composition
Atrnmg/Atrnmg
Genetic
Background
C3H/HeJ.Cg-Atrnmg
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Atrnmg mutation (3 available); any Atrn mutation (88 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
pigmentation
• dark backs
• some yellow pigment in flank and ventral hairs
• reduced levels of pheomelanin and modest reductions in eumelanin

nervous system
• brain vacuoles appear between 2 and 4 months

growth/size/body
• both males and females weigh 10-15% less than controls by 3 months of age

adipose tissue
• 20-40% reduction in body fat

behavior/neurological
• nocturnal locomotor activity is elevated 55-70%

integument
• dark backs
• some yellow pigment in flank and ventral hairs
• reduced levels of pheomelanin and modest reductions in eumelanin


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
03/25/2025
MGI 6.24
The Jackson Laboratory