Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2009-3-26
pubmed:abstractText
Two different missense mutations, p.D572N and p.D572H, affecting the same nucleotide and codon of the TMC1 gene were earlier reported to cause autosomal dominant hearing impairment at locus DFNA36 in two North American families. No other dominant mutations of human TMC1 have been published. We ascertained a third North American family segregating autosomal dominant nonsyndromic hearing impairment at the DFNA36 locus. We identified the p.D572N mutation of TMC1 co-segregating with hearing loss in our study family. A comparative haplotype analysis of linked single nucleotide polymorphisms and short tandem repeats in the two families segregating p.D572N was not consistent with a founder effect. These findings can be explained in two ways. Either nucleotide 1714 is a hot spot for mutations or, alternatively, missense mutations at this site confer a specific pathogenic gain-of-function or dominant-negative effect.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
1435-232X
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
54
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
188-90
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Amino acid 572 in TMC1: hot spot or critical functional residue for dominant mutations causing hearing impairment.
pubmed:affiliation
Department of Medical Genetics, University of Antwerp (UA), Antwerp, Belgium.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't, Research Support, N.I.H., Intramural