Novel compound heterozygous TMC1 mutations associated with autosomal recessive hearing loss in a Chinese family.

Hereditary nonsyndromic hearing loss is highly heterogeneous and most patients with a presumed genetic etiology lack a specific diagnosis. It has been estimated that several hundred genes may be associated with this sensory deficit in humans. Here, we identified compound heterozygous mutations in th...

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Main Authors: Xue Gao, Yu Su, Li-Ping Guan, Yong-Yi Yuan, Sha-Sha Huang, Yu Lu, Guo-Jian Wang, Ming-Yu Han, Fei Yu, Yue-Shuai Song, Qing-Yan Zhu, Jing Wu, Pu Dai
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2013-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC3653921?pdf=render
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author Xue Gao
Yu Su
Li-Ping Guan
Yong-Yi Yuan
Sha-Sha Huang
Yu Lu
Guo-Jian Wang
Ming-Yu Han
Fei Yu
Yue-Shuai Song
Qing-Yan Zhu
Jing Wu
Pu Dai
author_facet Xue Gao
Yu Su
Li-Ping Guan
Yong-Yi Yuan
Sha-Sha Huang
Yu Lu
Guo-Jian Wang
Ming-Yu Han
Fei Yu
Yue-Shuai Song
Qing-Yan Zhu
Jing Wu
Pu Dai
author_sort Xue Gao
collection DOAJ
description Hereditary nonsyndromic hearing loss is highly heterogeneous and most patients with a presumed genetic etiology lack a specific diagnosis. It has been estimated that several hundred genes may be associated with this sensory deficit in humans. Here, we identified compound heterozygous mutations in the TMC1 gene as the cause of recessively inherited sensorineural hearing loss by using whole-exome sequencing in a family with two deaf siblings. Sanger sequencing confirmed that both siblings inherited a missense mutation, c.589G>A p.G197R (maternal allele), and a nonsense mutation, c.1171C>T p.Q391X (paternal allele), in TMC1. We also used DNA from 50 Chinese familial patients with ARNSHL and 208 ethnicity-matched negative samples to perform extended variants analysis. Both variants co-segregated in family 1953, which had the hearing loss phenotype, but were absent in 50 patients and 208 ethnicity-matched controls. Therefore, we concluded that the hearing loss in this family was caused by novel compound heterozygous mutations in TMC1.
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spelling doaj.art-b363c0c99a7d486aa80c0df1b918c4172022-12-21T19:40:43ZengPublic Library of Science (PLoS)PLoS ONE1932-62032013-01-0185e6302610.1371/journal.pone.0063026Novel compound heterozygous TMC1 mutations associated with autosomal recessive hearing loss in a Chinese family.Xue GaoYu SuLi-Ping GuanYong-Yi YuanSha-Sha HuangYu LuGuo-Jian WangMing-Yu HanFei YuYue-Shuai SongQing-Yan ZhuJing WuPu DaiHereditary nonsyndromic hearing loss is highly heterogeneous and most patients with a presumed genetic etiology lack a specific diagnosis. It has been estimated that several hundred genes may be associated with this sensory deficit in humans. Here, we identified compound heterozygous mutations in the TMC1 gene as the cause of recessively inherited sensorineural hearing loss by using whole-exome sequencing in a family with two deaf siblings. Sanger sequencing confirmed that both siblings inherited a missense mutation, c.589G>A p.G197R (maternal allele), and a nonsense mutation, c.1171C>T p.Q391X (paternal allele), in TMC1. We also used DNA from 50 Chinese familial patients with ARNSHL and 208 ethnicity-matched negative samples to perform extended variants analysis. Both variants co-segregated in family 1953, which had the hearing loss phenotype, but were absent in 50 patients and 208 ethnicity-matched controls. Therefore, we concluded that the hearing loss in this family was caused by novel compound heterozygous mutations in TMC1.http://europepmc.org/articles/PMC3653921?pdf=render
spellingShingle Xue Gao
Yu Su
Li-Ping Guan
Yong-Yi Yuan
Sha-Sha Huang
Yu Lu
Guo-Jian Wang
Ming-Yu Han
Fei Yu
Yue-Shuai Song
Qing-Yan Zhu
Jing Wu
Pu Dai
Novel compound heterozygous TMC1 mutations associated with autosomal recessive hearing loss in a Chinese family.
PLoS ONE
title Novel compound heterozygous TMC1 mutations associated with autosomal recessive hearing loss in a Chinese family.
title_full Novel compound heterozygous TMC1 mutations associated with autosomal recessive hearing loss in a Chinese family.
title_fullStr Novel compound heterozygous TMC1 mutations associated with autosomal recessive hearing loss in a Chinese family.
title_full_unstemmed Novel compound heterozygous TMC1 mutations associated with autosomal recessive hearing loss in a Chinese family.
title_short Novel compound heterozygous TMC1 mutations associated with autosomal recessive hearing loss in a Chinese family.
title_sort novel compound heterozygous tmc1 mutations associated with autosomal recessive hearing loss in a chinese family
url http://europepmc.org/articles/PMC3653921?pdf=render
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