Original Article
Analysis of SACS mutation in a family affected with autosomal recessive spastic ataxia of Charlevoix-Saguenay
Zhang Qian, Li Huanzheng, Chen Chong, Luan Zhaotang, Xu Xueqin, Tang Shaohua
Published 2019-03-10
Cite as Chin J Med Genet, 2019, 36(3): 217-220. DOI: 10.3760/cma.j.issn.1003-9406.2019.03.006
Abstract
ObjectiveTo carry out mutation analysis for a Chinese family affected with autosomal recessive spastic ataxia of Charlevoix-Saguenay (ARSACS).
MethodsWhole exome sequencing (WES) was used to screen potential mutations within genomic DNA extracted from the proband. Suspected mutation was validated by combining clinical data and results of Sanger sequencing.
ResultsA homozygous deletional mutation c. 3665_3675delGTGCTGTCTTA (p.S1222fs) was found in the proband, for which her parents were both heterozygous carriers.
ConclusionWES is capable of detecting mutation underlying this disorder and facilitating genetic counseling and prenatal diagnosis for the affected family. A novel pathogenic mutation of the SACS gene was discovered.
Key words:
Autosomal recessive spastic ataxia of Charlevoix-Saguenay; SACS gene; Mutation; Whole exome sequencing
Contributor Information
Zhang Qian
School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
Li Huanzheng
Central Laboratory, Wenzhou Central Hospital, Wenzhou, Zhejiang 325000, China
Chen Chong
Central Laboratory, Wenzhou Central Hospital, Wenzhou, Zhejiang 325000, China
Luan Zhaotang
School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
Xu Xueqin
Central Laboratory, Wenzhou Central Hospital, Wenzhou, Zhejiang 325000, China
Tang Shaohua
School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
Central Laboratory, Wenzhou Central Hospital, Wenzhou, Zhejiang 325000, China