Systematic evaluation of a targeted gene capture sequencing panel for molecular diagnosis of retinitis pigmentosa

Hui Huang, Yanhua Chen, Huishuang Chen, Yuanyuan Ma, Pei Wen Chiang, Jing Zhong, Xuyang Liu, Asan, Jing Wu, Yan Su, Xin Li, Jianlian Deng, Yingping Huang, Xinxin Zhang, Yang Li, Ning Fan, Ying Wang, Lihui Tang, Jinting Shen, Meiyan ChenXiuqing Zhang, Deng Te, Santasree Banerjee, Hui Liu, Ming Qi, Xin Yi

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17 Scopus citations


Background Inherited eye diseases are major causes of vision loss in both children and adults. Inherited eye diseases are characterized by clinical variability and pronounced genetic heterogeneity. Genetic testing may provide an accurate diagnosis for ophthalmic genetic disorders and allow gene therapy for specific diseases. Methods A targeted gene capture panel was designed to capture exons of 283 inherited eye disease genes including 58 known causative retinitis pigmentosa (RP) genes. 180 samples were tested with this panel, 68 were previously tested by Sanger sequencing. Systematic evaluation of our method and comprehensive molecular diagnosis were carried on 99 RP patients. Results 96.85% targeted regions were covered by at least 20 folds, the accuracy of variants detection was 99.994%. In 4 of the 68 samples previously tested by Sanger sequencing, mutations of other diseases not consisting with the clinical diagnosis were detected by next-generation sequencing (NGS) not Sanger. Among the 99 RP patients, 64 (64.6%) were detected with pathogenic mutations, while in 3 patients, it was inconsistent between molecular diagnosis and their initial clinical diagnosis. After revisiting, one patient’s clinical diagnosis was reclassified. In addition, 3 patients were found carrying large deletions.

Original languageEnglish (US)
Article numbere0185237
JournalPloS one
Issue number4
StatePublished - Apr 2018

ASJC Scopus subject areas

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