一个鳃耳综合征家系EYA1基因新的无义突变的鉴定及遗传学分析

Identification and genetic analysis of a novel nonsense variant in EYA1 gene in a family with branchio-otic syndrome

李琼;梁鹏飞;王淑娟;李薇;王剑;邱建华;查定军

1:中国人民解放军空军军医大学第一附属医院耳鼻咽喉头颈外科

摘要
目的 为一个鳃耳综合征家系明确其致病基因及变异位点。方法 收集该家系临床资料,采集外周静脉血,进行耳聋基因捕获测序,通过Sanger测序验证该变异的致病性。结果 该家系共3代17人,3人表现为听力下降、耳前瘘管和鳃裂瘘管,符合鳃耳综合征临床诊断,呈常染色体显性遗传模式。基因检测结果显示,所有患病成员均携带EYA1基因c.963dupT(p.E322X)杂合变异,该变异为无义突变,导致终止密码子提前出现,既往文献无相关报导。家系内该变异与鳃耳综合征表型共分离,根据美国医学遗传学与基因组学学会指南判定为致病性变异。结论 本研究在一个鳃耳综合征家系中鉴定了一个新的致病性变异位点EYA1基因c.963dupT(p.E322X)。
关键词
鳃耳综合征;EYA1基因;无义突变;遗传性聋
基金项目(Foundation):
国家重点研发计划(2020YFC2005200);; 国家自然科学基金面上项目(82171161);; 陕西省一般项目(2022SF-534);; 陕西省创新团队(2023-CX-TD-70);; 陕西省重点产业链(2022ZDLSF02-10);; 西京助推-自由探索项目(XJZT19MJ02)
作者
李琼;梁鹏飞;王淑娟;李薇;王剑;邱建华;查定军
参考文献

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