{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,13]],"date-time":"2026-05-13T08:42:19Z","timestamp":1778661739306,"version":"3.51.4"},"reference-count":21,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2022,12,9]],"date-time":"2022-12-09T00:00:00Z","timestamp":1670544000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Pediatr."],"abstract":"<jats:sec><jats:title>Background<\/jats:title><jats:p>Deafness is the most common sensory defect in humans worldwide. Approximately 50% of cases are attributed to genetic factors, and about 70% are non-syndromic hearing loss (NSHL).<\/jats:p><\/jats:sec><jats:sec><jats:title>Objectives<\/jats:title><jats:p>To identify clinically relevant gene variants associated with NSHL in a Chinese family using trio-based whole-exome sequencing (WES).<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and methods<\/jats:title><jats:p>WES was performed on the 18-month-old female proband, and her parents. Gene variants specific to the family were identified by bioinformatics analysis and evaluated for their relevance to NSHL. We verified the novel variant in this family by the next-generation sequencing.In order to elucidate the frameshift mutation of <jats:italic>TMPRSS3<\/jats:italic> in a Chinese family, we used the Mass spectrometry to detect the gene from 1,010 healthy subjects.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>We identified a novel homozygous deletion (c.51delA) in exon 2 of the type II transmembrane serine protease 3 gene <jats:italic>TMPRSS3<\/jats:italic>, which resulted in a frameshift mutation just before the protein transmembrane domain (<jats:italic>p<\/jats:italic>.Q17fs). The deletion was present in the proband and her father, but not in her mother and the healthy controls. We also found mutations with potential relevance to hearing loss in <jats:italic>DCAF17<\/jats:italic>, which encodes a protein of unknown function (c. T555A: <jats:italic>p<\/jats:italic>.H185Q), and <jats:italic>ZNF276<\/jats:italic>, which encodes zinc finger protein 276 (c.1350\u20132A\u2009&amp;gt;\u2009G).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions and significance<\/jats:title><jats:p>We shown a novel frameshift mutation in <jats:italic>TMPRSS3<\/jats:italic> associated with autosomal recessive NSHL in a Han Chinese family.<\/jats:p><\/jats:sec>","DOI":"10.3389\/fped.2022.1032659","type":"journal-article","created":{"date-parts":[[2022,12,9]],"date-time":"2022-12-09T08:49:16Z","timestamp":1670575756000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":2,"title":["A frameshift mutation of TMPRSS3 in a Chinese family with non-syndromic hearing 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