Identify mutation in amyotrophic lateral sclerosis cases using HaloPlex target enrichment system
- PMID: 25109764
- DOI: 10.1016/j.neurobiolaging.2014.07.003
Identify mutation in amyotrophic lateral sclerosis cases using HaloPlex target enrichment system
Abstract
To date, at least 18 causative genes have been identified in amyotrophic lateral sclerosis (ALS). Because of the clinical and genetic heterogeneity, molecular diagnosis for ALS faces great challenges. HaloPlex target enrichment system is a new targeted sequencing approach, which can detect already known mutations or candidate genes. We performed this approach to screen 18 causative genes of ALS, including SOD1, SETX, FUS, ANG, TARDBP, ALS2, FIG4, VAPB, OPTN, DAO, VCP, UBQLN2, SPG11, SIGMAR1, DCTN1, SQSTM1, PFN1, and CHMP2B in 8 ALS probands. Using this approach, we got an average of 9.5 synonymous or missense mutations per sample. After validation by Sanger sequencing, we identified 3 documented SOD1 mutations (p.F21C, p.G148D, and p.C147R) and 1 novel DCTN1 p.G59R mutation in 4 probands. The novel DCTN1 mutation appeared to segregate with the disease in the pedigree and was absent in 200 control subjects. The high throughput and efficiency of this approach indicated that it could be applied to diagnose ALS and other inherited diseases with multiple causative genes in clinical practice.
Keywords: Amyotrophic lateral sclerosis; DCTN1; HaloPlex target enrichment system; SOD1.
Copyright © 2014 Elsevier Inc. All rights reserved.
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