Abstract:
:The spontaneous mutant, Wriggle Mouse Sagami (wri), is thought to be a model of hereditary hearing losses in humans. Here we report that the plasma membrane Ca(2+)-ATPase type 2 (PMCA2) gene is mutated in the wri mouse. A G-to-A transition was detected in wri, changing Glu-to-Lys within a conserved transmembrane domain. Mutation of PMCA2 was previously reported in deafwaddler (dfw) mutants; however, the sites of the wri and dfw mutations differ. Immunohistochemical analysis demonstrated that PMCA2 labeling in stereocilia of the cochlea was absent in the wri mutant, suggesting that PMCA2 is crucially involved in the physiology of the auditory system.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Takahashi K,Kitamura Kdoi
10.1006/bbrc.1999.1102subject
Has Abstractpub_date
1999-08-11 00:00:00pages
773-8issue
3eissn
0006-291Xissn
1090-2104pii
S0006-291X(99)91102-6journal_volume
261pub_type
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