Mutation spectrum of six genes in Chinese phenylketonuria patients obtained through next-generation sequencing.

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ID: 18207
2014
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Abstract
The identification of gene variants plays an important role in the diagnosis of genetic diseases.To develop a rapid method for the diagnosis of phenylketonuria (PKU) and tetrahydrobiopterin (BH4) deficiency, we designed a multiplex, PCR-based primer panel to amplify all the exons and flanking regions (50 bp average) of six PKU-associated genes (PAH, PTS, GCH1, QDPR, PCBD1 and GFRP). The Ion Torrent Personal Genome Machine (PGM) System was used to detect mutations in all the exons of these six genes. We tested 93 DNA samples from blood specimens from 35 patients and their parents (32 families) and 26 healthy adults. Using strict bioinformatic criteria, this sequencing data provided, on average, 99.14% coverage of the 39 exons at more than 70-fold mean depth of coverage. We found 23 previously documented variants in the PAH gene and six novel mutations in the PAH and PTS genes. A detailed analysis of the mutation spectrum of these patients is described in this study.These results were confirmed by Sanger sequencing. In conclusion, benchtop next-generation sequencing technology can be used to detect mutations in monogenic diseases and can detect both point mutations and indels with high sensitivity, fidelity and throughput at a lower cost than conventional methods in clinical applications.
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gu2014mutationplos Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Gu, Ying;Lu, Kangmo;Yang, Guanghui;Cen, Zhong;Yu, Li;Lin, Lin;Hao, Jing;Yang, Zhigang;Peng, Jiabao;Cui, Shujian;Huang, Jian;
Journal PloS one
Year 2014
DOI
10.1371/journal.pone.0094100
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