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자료유형
학술저널
저자정보
Kim Ye-Ri (Kyungpook National University) Kim Hye-Min (Kyungpook National University) Lee Byeonghyeon (Daegu-Gyeongbuk Medical Innovation Foundation) Baek Jeong-In (Deagu Haany University) Lee Kyu-Yup (Kyungpook National University) Park Hong-Joon (Soree Ear Clinics Seoul Republic of Korea) Kim Un-Kyung (Kyungpook National University)
저널정보
한국유전학회 Genes & Genomics Genes & Genomics Vol.45 No.2
발행연도
2023.2
수록면
225 - 230 (6page)
DOI
10.1007/s13258-022-01357-3

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Backgound Hereditary hearing loss is one of the most common genetically heterogeneous defects in human. About 70% of hereditary hearing loss is defined as non-syndromic hearing loss showing loss of hearing ability without any other symptoms. Up to date, the identified genes associated with non-syndromic hearing loss are 128, including 52 genes for DFNA and 76 genes for DFNB. Because of high levels of heterogeneity, it is difficult to identify the causative factors for hearing loss using Sanger sequencing. Objective Our aim was to detect causative factors and investigate pathogenic mutations, which co-segregates within the candidate family. Methods We used Next Generation Sequencing technique to investigate whole-exome sequences of a Korean family with non-syndromic hereditary hearing loss. The family showed autosomal dominant inheritance pattern. Results We identified a novel missense variation, c.1978G > A in MYO7A gene, in the family with the autosomal dominant inheritance pattern. c.1978G > A produced Gly660Arg in the motor head domain of Myosin VIIA disrupt the ATP- and actin-binding motif function. Conclusion This study is the first to report pathogenic mutations within MYO7A gene in Korean family and our data would facilitate diagnosing the primary cause of hereditary hearing loss in Korean.

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