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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID 		a20H
nongouti 20 Harwell
MGI:5299228
Summary 2 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
 		a20H/a20H Not Specified MGI:5299237
ht2
 		a/a20H Not Specified MGI:5299236


Genotype
MGI:5299237
hm1
Allelic
Composition		 a20H/a20H
Genetic
Background		 Not Specified
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
a20H mutation (0 available); any a mutation (468 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
integument
abnormal coat/hair pigmentation ( J:90559 )
• black ears and tail; coat more agouti than a/a20H

pigmentation
abnormal coat/hair pigmentation ( J:90559 )
• black ears and tail; coat more agouti than a/a20H




Genotype
MGI:5299236
ht2
Allelic
Composition		 a/a20H
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)
a20H mutation (0 available); any a mutation (468 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
integument

pigmentation




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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Send questions and comments to User Support. 		last database update
09/30/2025
MGI 6.24 		The Jackson Laboratory