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Systematic evaluation of gene variants linked to hearing loss based on allele frequency threshold and filtering allele frequency

Authors
 John Hoon Rim  ;  Joon Suk Lee  ;  Jinsei Jung  ;  Ji Hyun Lee  ;  Seung-Tae Lee  ;  Jong Rak Choi  ;  Jae Young Choi  ;  Min Goo Lee  ;  Heon Yung Gee 
Citation
 Scientific Reports, Vol.9(1) : 4583, 2019 
Journal Title
 Scientific Reports 
Issue Date
2019
Abstract
As the number of genes identified for linkage to hearing loss has been increasing and more public databases have become available, we aimed to systematically evaluate all variants reported for nonsyndromic hearing loss (NSHL) based on their allele frequencies (AFs) in the general population. Among the 3,549 variants in 97 NSHL genes reported as pathogenic/likely pathogenic in ClinVar and HGMD, 1,618 were found in public databases (gnomAD, ExAC, EVS, and 1000G). To evaluate the pathogenicity of these variants, we employed AF thresholds and NSHL-optimized ACMG guidelines. AF thresholds were determined using a high-resolution variant frequency framework and Hardy-Weinberg equilibrium calculation: 0.6% and 0.1% for recessive and dominant genes, respectively. Filtering AFs of variants linked to NSHL were obtained based on AFs reported in gnomAD and ExAC. We found that 48 variants in 23 genes had filtering AFs above the suggested thresholds and assumed that these variants might be benign based on their filtering AFs. 47 variants, except for one notorious high-frequency GJB2 mutation (c.109G > A; p.Val37Ile), were confirmed to be benign/likely benign by the NSHL-optimized ACMG guidelines. The proposed systematic approach will aid in precise evaluation of NSHL variant pathogenicity in the context of filtering AFs, AF thresholds, and NSHL-specific ACMG guidelines, thus improving NSHL diagnostics.
Files in This Item:
T201900971.pdf Download
DOI
10.1038/s41598-019-41068-6
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Pharmacology (약리학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Otorhinolaryngology (이비인후과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Laboratory Medicine (진단검사의학교실) > 1. Journal Papers
Yonsei Authors
Lee, Min Goo(이민구) ORCID logo https://orcid.org/0000-0001-7436-012X
Lee, Seung-Tae(이승태) ORCID logo https://orcid.org/0000-0003-1047-1415
Jung, Jinsei(정진세) ORCID logo https://orcid.org/0000-0003-1906-6969
Gee, Heon Yung(지헌영) ORCID logo https://orcid.org/0000-0002-8741-6177
Choi, Jae Young(최재영) ORCID logo https://orcid.org/0000-0001-9493-3458
Choi, Jong Rak(최종락) ORCID logo https://orcid.org/0000-0002-0608-2989
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/171225
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