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MitfMi
Allele Detail

Nomenclature
Symbol: MitfMi
Name: microphthalmia-associated transcription factor; microphthalmia
MGI ID: MGI:1856085
Synonyms: m, mi
Gene: Mitf   Location: Chr6:97757052-97971343 bp, + strand    Genetic Position: Chr6, 40.0 cM
MitfMi/MitfMi and control

Show the 2 image(s) involving this allele.

Mutation
origin
Strain of Origin: Not Specified
Mutation
description
Allele Type: Not Specified
Mutation: Intragenic deletion
  This mutation was identified during an irradiation experiment, but it is not known whether it was induced in the treated male or spontaneously arose in an untreated mate. RT-PCR analysis identified a 3 nucleotide deletion in the transcript that results in a loss of one of four conserved arginine residues in the basic domain of the encoded protein. This mutation is predicted to affect the ability of the protein to bind DNA. (J:13562)
Inheritance: Semidominant
Find Mice (IMSR) Mouse strains and cell lines available from the International Mouse Strain Resource (IMSR)
Carrying this Mutation: Mouse Strains: 3 strains available      Cell Lines: 0 lines available
Carrying any Mitf Mutation: 39 strains or lines available
Expression
In Mice Carrying this Mutation: 6 assay results
Phenotype
summary
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Phenotype Summary by Mammalian Phenotype terms

(show or hide all annotated terms)

Genotypes are listed in the next section.

      Key:  
hm homozygous ht heterozygous
cn conditional genotype  cx complex: > 1 genome feature
tg involves transgenes ot other: hemizygous, indeterminate,...
N normal phenotype expected model not found
Affected SystemsGenotypes:
 
hm1
 
hm2
 
ht3
 
ht4
 
ht5
 
ht6
  
craniofacial          
     
  
hematopoietic system          
     
  
homeostasis/metabolism          
     
  
immune system          
    
  
lethality/postnatal          
     
  
nervous system          
     
  
pigmentation          
 
  
skeleton          
     
  
skin/coat/nails          
  
  
vision/eye          
 N
 
  
Disease Models          
     
Phenotypic
data by
genotype
Phenotypic Data by Genotype

(show or hide all phenotypic details)

GenotypeAllelic CompositionGenetic Background
  
 hm1   
MitfMi/MitfMi B6.Cg-MitfMi
  
 hm2   Disease Model  images  
MitfMi/MitfMi Not Specified
  
 ht3   
MitfMi/Mitf+ Not Specified
  
 ht4   
MitfMi/Mitfmi-sp B6.Cg-MitfMi/Mitfmi-sp
  
 ht5   
MitfMi/Mitftm1Arnh involves: 129S1/Sv * C57BL/6
  
 ht6   
MitfMi/Mitfmi-sp involves: C57BL/6J
Disease
models
Mouse Models
of Human Disease
NoteGenotypeRef(s)
 
Allelic Composition
Genetic Background
Models with phenotypic similarity to human diseases associated with human MITF.
Albinism, Ocular, with Sensorineural Deafness
OMIM ID: 103470
 
 
hm2
MitfMi/MitfMiNot SpecifiedJ:30758
Tietz Syndrome
OMIM ID: 103500
 
 
hm2
MitfMi/MitfMiNot SpecifiedJ:30758
Waardenburg Syndrome, Type IIA; WS2A
OMIM ID: 193510
 
 
hm2
MitfMi/MitfMiNot SpecifiedJ:30758
Notes This mutation produces an osteopetrosis that resembles human osteopetrosis more than that produced by Ctsfop. MitfMi mutant mice have normal levels of M-CSF and its receptor. Osteoplasts are produced, but are unable to function normally in bone resorption (J:22788).

Combination heterozygotes of MitfMi-wh/MitfMi show some interallelic complementation in that the heterozygote of the two alleles is more nearly normal than either homozygote (J:12967). MitfMi-Or/MitfMi mice resemble homozygous MitfMi-Or (J:15060).

References
Original: J:208 Hertwig P, "Neue Mutationen und Koppelungsgruppen bei der Hausmaus" Z Indukt Abstamm Vererbungsl 1942;80():220-246
All: 62 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
11/20/2009
MGI_4.31
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