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[Identification of a novel SOD1 variant in a Chinese patient with amyotrophic lateral sclerosis]
Yuan Bai1, Yong'an Zhou, Jianwei Li
1Graduate School of Shanxi Medical University, Taiyuan, Shanxi 030001, China. zya655903@163.com.
Objective:
To explore the genetic basis for a Chinese patient with amyotrophic lateral sclerosis (ALS).
Methods:
Peripheral blood samples were collected from the patient and his parents for the extraction of genomic DNA. Genetic variant was identified by whole exome sequencing. Candidate variant was verified by Sanger sequencing of his parents and healthy controls.
Results:
The patient was found to harbor a heterozygous c.420C>G (p.Asn140Lys) variant of the SOD1 gene. The same variant was not detected in his parents and 100 healthy controls. The variant has not been included in HGMD, dbSNP and other databases.
Conclusion:
The c.420C>G variant of the SOD1 gene may underlie the ALS in this patient. Above finding has enriched the spectrum of SOD1 gene variants.
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