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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Hr+
wild type
MGI:2430932
Summary 3 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
ht1
HrHp/Hr+ BALB/cJ-HrHp MGI:3851928
ht2
HrN/Hr+ involves: ORNL:STOCK Aw/a Oca2p MGI:4414800
cx3
Adam10Pied/Adam10+
Hrhr/Hr+
HRA/SkhKcl-Adam10Pied HrHr MGI:6163712


Genotype
MGI:3851928
ht1
Allelic
Composition
HrHp/Hr+
Genetic
Background
BALB/cJ-HrHp
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
HrHp mutation (0 available); any Hr mutation (86 available)
phenotype observed in females
phenotype observed in males
N normal phenotype

Hair coat abnormalities in HrHp/Hr+ and HrHp/HrHp mice

integument
• mice lose their hair as they age and are bald by 40 weeks
• vibrissa hair follicles exhibit an intermediate phenotype
• mice exhibit an intermediate vibrissa phenotype
• vibrissa are shorter than in wild-type mice
• slightly
• epidermal epithelial cell growth is reduced and cavernous sinus is expanded compared to in wild-type mice
• at P210, mice develop cysts in the skin
• very mild

growth/size/body
• at P210, mice develop cysts in the skin




Genotype
MGI:4414800
ht2
Allelic
Composition
HrN/Hr+
Genetic
Background
involves: ORNL:STOCK Aw/a Oca2p
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
HrN mutation (2 available); any Hr mutation (86 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
integument
• a fuzzy and thin coat is seen at 10 days of age and persists
• adults undergo repeated hair loss and regrowth but are never entirely bare
• fuzzy, thin coat develops at about 10 days of age and persists
• easily distinguished at 5 days of age
• noticed as early as 5 days of age




Genotype
MGI:6163712
cx3
Allelic
Composition
Adam10Pied/Adam10+
Hrhr/Hr+
Genetic
Background
HRA/SkhKcl-Adam10Pied HrHr
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Adam10Pied mutation (0 available); any Adam10 mutation (39 available)
Hrhr mutation (17 available); any Hr mutation (86 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
pigmentation
N
• no macules are observed in trunk hair





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
01/13/2026
MGI 6.24
The Jackson Laboratory