A novel mutation in PAX3 associated with Waardenburg syndrome type I in a Chinese family

被引:4
作者
Xiao, Yun [1 ,2 ]
Luo, Jianfen [1 ,2 ]
Zhang, Fengguo [1 ,2 ]
Li, Jianfeng [1 ,2 ]
Han, Yuechen [1 ,2 ]
Zhang, Daogong [1 ,2 ]
Wang, Mingming [1 ,2 ]
Ma, Yalin [1 ,2 ]
Xu, Lei [1 ,2 ]
Bai, Xiaohui [1 ,2 ]
Wang, Haibo [1 ,2 ]
机构
[1] Shandong Univ, Shandong Prov Hosp, Dept Otorhinolaryngol Head & Neck Surg, Jinan 250021, Peoples R China
[2] Shandong Prov Key Lab Otol, Jinan, Peoples R China
基金
中国国家自然科学基金;
关键词
PAX3; WS1; targeted next-generation sequencing; Novel mutation; GENE;
D O I
10.3109/00016489.2015.1132846
中图分类号
R76 [耳鼻咽喉科学];
学科分类号
100213 ;
摘要
Conclusion The novel compound heterozygous mutation in PAX3 was the key genetic reason for WS1 in this family, which was useful to the molecular diagnosis of WS1. Purpose Screening the pathogenic mutations in a four generation Chinese family with Waardenburg syndrome type I (WS1). Methods WS1 was diagnosed in a 4-year-old boy according to the Waardenburg syndrome Consortium criteria. The detailed family history revealed four affected members in the family. Routine clinical, audiological examination, and ophthalmologic evaluation were performed on four affected and 10 healthy members in this family. The genetic analysis was conducted, including the targeted next-generation sequencing of 127 known deafness genes combined with Sanger sequencing, TA clone and bioinformatic analysis. Results A novel compound heterozygous mutation c.[169_170insC;172_174delAAG] (p.His57ProfsX55) was identified in PAX3, which was co-segregated with WS1 in the Chinese family. This mutation was absent in the unaffected family members and 200 ethnicity-matched controls. The phylogenetic analysis and three-dimensional (3D) modeling of Pax3 protein further confirmed that the novel compound heterozygous mutation was pathogenic.
引用
收藏
页码:439 / 445
页数:7
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