A Bayesian framework for efficient and accurate variant prediction

PloS One
Dajun QianMary Helen Black

Abstract

There is a growing need to develop variant prediction tools capable of assessing a wide spectrum of evidence. We present a Bayesian framework that involves aggregating pathogenicity data across multiple in silico scores on a gene-by-gene basis and multiple evidence statistics in both quantitative and qualitative forms, and performs 5-tiered variant classification based on the resulting probability credible interval. When evaluated in 1,161 missense variants, our gene-specific in silico model-based meta-predictor yielded an area under the curve (AUC) of 96.0% and outperformed all other in silico predictors. Multifactorial model analysis incorporating all available evidence yielded 99.7% AUC, with 22.8% predicted as variants of uncertain significance (VUS). Use of only 3 auto-computed evidence statistics yielded 98.6% AUC with 56.0% predicted as VUS, which represented sufficient accuracy to rapidly assign a significant portion of VUS to clinically meaningful classifications. Collectively, our findings support the use of this framework to conduct large-scale variant prioritization using in silico predictors followed by variant prediction and classification with a high degree of predictive accuracy.

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Citations

Mar 7, 2019·Human Mutation·Peter B McGarveyUNKNOWN UniProt Consortium
Aug 9, 2019·Journal of Medical Genetics·Shuwei LiMaryHelen Black
Feb 6, 2020·Database : the Journal of Biological Databases and Curation·Anasua SarkarMauno Vihinen
Jul 2, 2021·Scientific Reports·Jia-Jun LiuChih-Hao Lu

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Software Mentioned

LRT
MutationAssessor
GERP
REVEL
CADD
LOOCV
MutPred
phastCons
AGVGD
R for Statistical Computing

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