The heterozygous EDNRB mutation in a Chinese family with Waardenburg syndrome type Ⅰ

• 作者: Huan-Huan Cheng Juan Deng Pei-Zhen Zhao Shi-Qi Ling Wei-Li Li
• 来源期刊: 国际眼科杂志:英文版
• 学科: 医学
• 关键词: EDNRB Chinese family WAARDENBURG SYNDROME TYPE I gene MUTATION
• 年，卷（期）: 2019,（9）
• 页码范围: 1507-1509
• 页数: 3页
• 分类号: R596

摘要

The genovariation of endothelin receptor type B(EDNRB) was identified in a Chinese family with Waardenburg syndrome type I(WS1) in the present study. WS1 was diagnosed in a 19-year-old young man, his older sister and aunt according to WS consortium criteria. After extracting genomic DNA from the peripheral blood samples, the coding exons and intronic regions of EDNRB were sequenced. A missense heterozygous mutation was found in the coding region of exon 2 in the EDNRB gene on chormosome 13 q22.3 of the proband. The same mutation was detected in the proband’s afflicted paternal aunt and first older sister. Subsequent polyphen analysis and three-dimensional modeling confirmed that the c.469 A>G heterozygous mutation in EDNRB was possibly pathogenic. This is the first report of EDNRB mutation as a potential disease-causing mutation in Chinese patients with WS1.