Shadrina MI, Shulskaya MV, Klyushnikov SA, Nikopensius T, Nelis M, Kivistik PA, Komar AA, Limborska SA, Illarioshkin SN, Slominsky PA. ITPR1 gene p.Val1553Met mutation in Russian family with mild Spinocerebellar ataxia.
Cerebellum Ataxias 2016;
3:2. [PMID:
26770814 PMCID:
PMC4712497 DOI:
10.1186/s40673-016-0040-8]
[Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Accepted: 12/06/2015] [Indexed: 12/29/2022]
Abstract
Background
Spinocerebellar ataxias (SСAs) are a highly heterogeneous group of inherited neurological disorders. The symptoms of ataxia vary in individual patients and even within the same SCA subtype. A study of a four-generation family with autosomal dominant (AD) non-progressive SCA with mild symptoms was conducted. The genotyping of this family revealed no frequent pathogenic mutations. So the objective of this study was to identify the genetic causes of the disease in this family with the technology of whole-exome sequencing (WES).
Methods and results
WES, candidate variant analysis with further Sanger sequencing, mRNA secondary structure prediction, and RSCU analysis were performed; a heterozygous missense mutation in ITPR1 was identified.
Conclusion
Our study confirms the fact that ITPR1 gene plays a certain role in the pathogenesis of SCAs, and, therefore, we suggest that c.4657G>A p.Val1553Met) is a disease-causing mutation in the family studied.
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