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Mitfmi-sp
Spontaneous Allele Detail
Nomenclature
Symbol: Mitfmi-sp
Name: microphthalmia-associated transcription factor; microphthalmia spotted
MGI ID: MGI:1856092
Synonyms: MITFsp, sp
Gene: Mitf  Location: Chr6:97807058-98021349 bp, + strand  Genetic Position: Chr6, 45.05 cM
MitfMi-wh/Mitfmi-sp

Show the 1 phenotype image(s) involving this allele.

Mutation
origin
Strain of Origin:  C57BL/6J
Mutation
description
Allele Type:    Spontaneous
Mutation:    Insertion
 
Mutation details
Inheritance:    Recessive
Phenotypes
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View phenotypes for all genotypes (concatenated display).
Find Mice (IMSR)
Mouse strains and cell lines available from the International Mouse Strain Resource (IMSR)
Carrying this Mutation:  Mouse Strains: 10 strains available      Cell Lines: 0 lines available
Carrying any Mitf Mutation:  41 strains or lines available
Notes
Homozygotes and Mitfmi-sp/+ mice are not detectably different from wild-type mice in color but have slightly less tyrosinase activity in the skin. MitfMi-wh/Mitfmi-sp mice are light yellow with dorsal and ventral white spots and pigmented eyes. Medullary pigment granules in the hair show much clumping and are yellowish brown. Mitfmi/Mitfmi-sp mice are white with some pigmentation in the eyes and some flecks of pigmented hair on the back. All these combinations are viable and fertile (J:12946). Homozygotes and Mitfmi-sp/+ mice are not detectably different from wild-type mice in color but have slightly less tyrosinase activity in the skin. MitfMi-wh/Mitfmi-sp mice are light yellow with dorsal and ventral white spots and pigmented eyes. Medullary pigment granules in the hair show much clumping and are yellowish brown. Mitfmi/Mitfmi-sp mice are white with some pigmentation in the eyes and some flecks of pigmented hair on the back. All these combinations are viable and fertile (J:12946).

References
Original:  J:35685 Wolfe HG, New allele at the mi locus (mi). Mouse News Lett. 1962;26:35
All:  8 reference(s)

Contributing Projects:
Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Tumor Biology (MTB), Gene Ontology (GO), MouseCyc
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last database update
09/09/2014
MGI 5.19
The Jackson Laboratory