期刊
HUMAN MUTATION
卷 33, 期 4, 页码 609-613出版社
WILEY
DOI: 10.1002/humu.22033
关键词
Exome sequencing; inherited disease; false positives; next generation sequencing; genomics; Illumina; sequencing errors; alignment errors; WES; SureSelect Human All Exon
资金
- NHGRI
- UDP through the office of the Director NIH
Disease gene discovery has been transformed by affordable sequencing of exomes and genomes. Identification of disease-causing mutations requires sifting through a large number of sequence variants. A subset of the variants are unlikely to be good candidates for disease causation based on one or more of the following criteria: (1) being located in genomic regions known to be highly polymorphic, (2) having characteristics suggesting assembly misalignment, and/or (3) being labeled as variants based on misleading reference genome information. We analyzed exome sequence data from 118 individuals in 29 families seen in the NIH Undiagnosed Diseases Program (UDP) to create lists of variants and genes with these characteristics. Specifically, we identified several groups of genes that are candidates for provisional exclusion during exome analysis: 23,389 positions with excess heterozygosity suggestive of alignment errors and 1,009 positions in which the hg18 human genome reference sequence appeared to contain a minor allele. Exclusion of such variants, which we provide in supplemental lists, will likely enhance identification of disease-causing mutations using exome sequence data. Hum Mutat 33:609613, 2012. (c) 2012 Wiley Periodicals, Inc.
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