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Phenotypes Associated with This Genotype
Genotype
MGI:3813820
Allelic
Composition		 KitW-37J/Kit+
Genetic
Background		 involves: C57BL/6 * C57BL/6J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
KitW-37J mutation (2 available); any Kit mutation (175 available)
♀ phenotype observed in females
♂ phenotype observed in males
N normal phenotype
immune system
decreased mast cell number ( J:27513 )
• mice exhibit slightly fewer mast cells in the skin than wild-type mice

hematopoietic system
decreased mast cell number ( J:27513 )
• mice exhibit slightly fewer mast cells in the skin than wild-type mice

pigmentation
diluted coat color ( J:27513 )
• slightly

integument
diluted coat color ( J:27513 )
• slightly

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
01/28/2026
MGI 6.24 		The Jackson Laboratory