A novel hearing loss-related mutation occurring in the GJB2 basal promoter

被引:39
作者
Matos, T. D.
Caria, H.
Simoes-Teixeira, H.
Aasen, T.
Nickel, R.
Jagger, D. J.
O'Neill, A.
Kelsell, D. P.
Fialho, G.
机构
[1] Queen Mary Univ London, Ctr Cutaneous Res, Inst Cell & Mol Sci, London E1 2AT, England
[2] Univ Nova Lisboa, Inst Ciencia Aplicada & Tecnol, Ctr Genet & Biol Mol, P-1200 Lisbon, Portugal
[3] Inst Politecn Setubal, Escuela Super Saude, Setubal, Portugal
[4] Hosp Egas Moniz, Serv ORL, Lisbon, Portugal
[5] UCL, Ctr Auditory Res, UCL Ear Inst, London, England
关键词
D O I
10.1136/jmg.2007.050682
中图分类号
Q3 [遗传学];
学科分类号
071007 ; 090102 ;
摘要
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.
引用
收藏
页码:721 / 725
页数:5
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