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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
HrN
near naked
MGI:1856060
Summary 3 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
HrN/HrN involves: ORNL:STOCK Aw/a Oca2p MGI:4414798
ht2
HrN/Hr+ involves: ORNL:STOCK Aw/a Oca2p MGI:4414800
ht3
HrN/Hrhr involves: ORNL:STOCK Aw/a Oca2p MGI:4414846


Genotype
MGI:4414798
hm1
Allelic
Composition
HrN/HrN
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 (87 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
endocrine/exocrine glands
• impaired ability to suckle young

integument
• impaired ability to suckle young
• completely naked throughout life span
• precludes female's ability to suckle young
• extremely short compared with whiskers of the heterozygous mouse
• skin of adults are deeply wrinkled but not folded
• extremely thin skin and skin of females is subject to laceration during mating




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 (87 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:4414846
ht3
Allelic
Composition
HrN/Hrhr
Genetic
Background
involves: ORNL:STOCK Aw/a Oca2p
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Hrhr mutation (18 available); any Hr mutation (87 available)
HrN mutation (2 available); any Hr mutation (87 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
integument
• this genotype looks like heterozygous, Hr/+, mice
• this genotype looks like heterozygous Hr/+ mice





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last database update
11/12/2024
MGI 6.24
The Jackson Laboratory