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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Public Library of Science (PLoS)
2013-01-01
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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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issn | 1932-6203 |
language | English |
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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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