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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID 		Crm
cream
MGI:1856000
Summary 3 genotypes
Jump to Allelic Composition Genetic Background Genotype ID
hm1
 		Crm/Crm TO MGI:3759888
ht2
 		Crm/Crm+ TO MGI:3759875
ot3
 		Crm/Y TO MGI:3759874


Genotype
MGI:3759888
hm1
Allelic
Composition		 Crm/Crm
Genetic
Background		 TO
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Crm mutation (2 available); any Crm mutation (4 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
pigmentation
yellow coat color ( J:15080 )
• pale yellow color
abnormal skin pigmentation ( J:15080 )
• skin has a yellow cast

integument
yellow coat color ( J:15080 )
• pale yellow color
abnormal skin pigmentation ( J:15080 )
• skin has a yellow cast




Genotype
MGI:3759875
ht2
Allelic
Composition		 Crm/Crm+
Genetic
Background		 TO
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Crm mutation (2 available); any Crm mutation (4 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
pigmentation
yellow coat color ( J:15080 )
• pale yellow in color
variegated coat color ( J:13812 , J:15080 )
• mutation causes fluoresence of the coat by long-wave UV light; no fluorescent areas where there is normal albino hair (J:13812)
(J:15080)
abnormal skin pigmentation ( J:13812 )
• mosaic of yellow is seen in the skin even in areas that have albino hair suggesting the mutation is not related to pigment cell activity

integument
yellow coat color ( J:15080 )
• pale yellow in color
variegated coat color ( J:13812 , J:15080 )
• mutation causes fluoresence of the coat by long-wave UV light; no fluorescent areas where there is normal albino hair (J:13812)
(J:15080)
abnormal skin pigmentation ( J:13812 )
• mosaic of yellow is seen in the skin even in areas that have albino hair suggesting the mutation is not related to pigment cell activity




Genotype
MGI:3759874
ot3
Allelic
Composition		 Crm/Y
Genetic
Background		 TO
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Crm mutation (2 available); any Crm mutation (4 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
pigmentation
yellow coat color ( J:15080 )
• pale yellow
abnormal skin pigmentation ( J:15080 )
• skin has a yellow cast

integument
yellow coat color ( J:15080 )
• pale yellow
abnormal skin pigmentation ( J:15080 )
• skin has a yellow cast




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