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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID 		a19H
nonagouti 19 Harwell
MGI:5299225
Summary 2 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
 		a19H/a19H involves: C3H/HeH MGI:5299234
ht2
 		a/a19H involves: C3H/HeH MGI:5299235


Genotype
MGI:5299234
hm1
Allelic
Composition		 a19H/a19H
Genetic
Background		 involves: C3H/HeH
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
a19H 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 )
• nonagouti with dark ears
abnormal pinna hair pigmentation ( J:90559 , J:181531 )
• black (J:90559)
• black (J:181531)

pigmentation
abnormal coat/hair pigmentation ( J:90559 )
• nonagouti with dark ears
abnormal pinna hair pigmentation ( J:90559 , J:181531 )
• black (J:90559)
• black (J:181531)




Genotype
MGI:5299235
ht2
Allelic
Composition		 a/a19H
Genetic
Background		 involves: C3H/HeH
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
a mutation (166 available); any a mutation (468 available)
a19H mutation (0 available); any a mutation (468 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
integument

pigmentation




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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
01/06/2026
MGI 6.24 		The Jackson Laboratory