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MUTANT LINE   009TNP Contact TMGC for ordering information
Synopsis:

Wide frequency hearing loss with circling behavior

Detailed Phenotype Description:

This autosomal recessive mutation (tmgc44), linked to mid Chr7, was detected in the progeny of non-inbred D7R75M males given one dose of 125 mg/kg ENU. This Mutant displayed circling behavior, suggesting vestibular defects, but the vestibular involvement is unconfirmed as yet. We have tested a total of 15-17 mice in only 2 generations of the 9TNP pedigree. This pedigree shows significant hearing loss at all frequencies. To compare to all other TNP pedigrees (n=28-53 at each stimulus), ABR thresholds of 9TNP are elevated significantly at click (3.9 x SD), 8 kHz (3.7 x SD), 16 kHz (6.7 x SD) and 32 kHz (1.9 x SD). Wide-range frequency hearing loss is characteristic of congenital deafness in humans. Thus this mutant could provide a model for such a common disorder. Due to breeding problems this mutant is not available live and must be recovered from frozen sperm upon request.

Detailed data sheet

Abnormal Assays:Domain(s):
Auditory brain stem response (ABR) (view protocol) Auditory/Vestibular
Overt movement/posture (view protocol) Visible Mutants, Movement/Neuromuscular Function


MUTANT LINE INFORMATION
Mutant Line Name
009TNP (view more detail at Mutagenesis Center)
Gene Symbol tmgc44 (view more info on gene)
Gene Name Tennessee Mouse Genome Consortium 44
Allele Symbol tmgc44
Allele Name Tennessee Mouse Genome Consortium 44
MGI ID MGI:3589238 (view MGI record)
Originating Mutagenesis Center Tennessee Mouse Genome Consortium (contact for ordering information)
Mutation Type chemically induced mutation (CI)
Strain Designation STOCK 009TNP
Data Sheet view data sheet


HERITABILITY AND MAPPING INFORMATION
Background Strain Mixed, noninbred
Mode of Inheritance Recessive
Heritability Proven (Segregation In Progress, view detail)
Chromosome Location 7
Mapping Interval
Identified Mutation


STATUS INFORMATION
Availability
  • Cryopreserved sperm (SP)
Confirmation Date 18-Jan-2005
Availability Date 22-Aug-2005
Off-Shelf Date
Line History Comments