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1: J Med Genet. 2007 Nov;44(11):721-5. Epub 2007 Jul 27.
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Comment in:
A novel hearing-loss-related mutation occurring in the GJB2 basal promoter.

Matos TD, Caria H, Simões-Teixeira H, Aasen T, Nickel R, Jagger DJ, O'Neill A, Kelsell DP, Fialho G.

Mutations in the GJB2 gene are a major cause of non-syndromic recessive hearing loss in many countries. In a significant fraction of patients, only monoallelic GJB2 mutations known to be either recessive or of unclear pathogenicity are identified. This paper reports a novel GJB2 mutation, -3438C-->T, found in the basal promoter of the gene, in trans with V84M, in a patient with profound hearing impairment. This novel mutation can abolish the basal promoter activity of GJB2. These results highlight the importance of extending the mutational screening to regions outside the coding region of GJB2.

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PMID: 17660464 [PubMed - indexed for MEDLINE]