학술논문

NCBoost classifies pathogenic non-coding variants in Mendelian diseases through supervised learning on purifying selection signals in humans
Document Type
article
Source
Genome Biology, Vol 20, Iss 1, Pp 1-22 (2019)
Subject
Mendelian diseases
Whole genome sequencing
Rare variant analysis
Non-coding genetic variants
Pathogenicity score
Biology (General)
QH301-705.5
Genetics
QH426-470
Language
English
ISSN
1474-760X
Abstract
Abstract State-of-the-art methods assessing pathogenic non-coding variants have mostly been characterized on common disease-associated polymorphisms, yet with modest accuracy and strong positional biases. In this study, we curated 737 high-confidence pathogenic non-coding variants associated with monogenic Mendelian diseases. In addition to interspecies conservation, a comprehensive set of recent and ongoing purifying selection signals in humans is explored, accounting for lineage-specific regulatory elements. Supervised learning using gradient tree boosting on such features achieves a high predictive performance and overcomes positional bias. NCBoost performs consistently across diverse learning and independent testing data sets and outperforms other existing reference methods.