Ush1c^dfcr
Spontaneous Allele Detail

Summary

• Symbol: Ush1c^dfcr
• Name: USH1 protein network component harmonin; deaf circler
• MGI ID: MGI:2651858
• Synonyms: dfcr
• Gene: Ush1c Location: Chr7:45844774-45887927 bp, - strand Genetic Position: Chr7, 29.66 cM, cytoband B3
• Alliance: Ush1c^dfcr page

Mutation origin

• Strain of Origin: CBySmn.Cg-Prkdc^scid/J

Mutation description

• Allele Type: Spontaneous
• Mutation: Intragenic deletion
• Mutation details: The dfcr mutation is 12.7kb deletion of the 28-exon Ush1c gene. The deletion includes the last 118 nucleotides of exon 12, all of exons 13 - 15 and of alternatively spliced, inner ear-specific exons A, B, C and D, and 110 base pairs of the intron following exon D. The transcription product is spliced in all tissues examined so that exon 11 is joined, in frame, to exon 16 to produce an mRNA lacking exons 12, 13, 14 and 15 of the wild-type message, encoding 132 of the 548 amino acids comprising the ubiquitously expressed harmonin isoform a1. In the inner ear, an additional, minor splice product of the mutant transcript results from in-frame splicing of exon 11 to inner ear-specific exon E; this mRNA lacks 1137 nucleotides derived from exons 12, 13, 14, 15, A, B, C and D, encoding 379 amino acids of the wild-type inner ear-specific harmonin isoform b.Whole mount analysis revealed that the mutant protein is mislocalized to the very tips of cochlear stereocilia. (J:85400, J:157359)

Disease models

Expression

In Structures Affected by this Mutation:

4 anatomical structure(s)

Find Mice (IMSR)

• Mouse strains and cell lines available from the International Mouse Strain Resource (IMSR)
• Carrying this Mutation: Mouse Strains: 1 strain available Cell Lines: 0 lines available
• Carrying any Ush1c Mutation: 50 strains or lines available

References

• Original: J:85400 Johnson KR, et al., Mouse models of USH1C and DFNB18: phenotypic and molecular analyses of two new spontaneous mutations of the Ush1c gene. Hum Mol Genet. 2003 Dec 1;12(23):3075-86
• All: 9 reference(s)