X-CNV: genome-wide prediction of the pathogenicity of copy number variations

Abstract Background Gene copy number variations (CNVs) contribute to genetic diversity and disease prevalence across populations. Substantial efforts have been made to decipher the relationship between CNVs and pathogenesis but with limited success. Results We have developed a novel computational fr...

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Main Authors: Li Zhang, Jingru Shi, Jian Ouyang, Riquan Zhang, Yiran Tao, Dongsheng Yuan, Chengkai Lv, Ruiyuan Wang, Baitang Ning, Ruth Roberts, Weida Tong, Zhichao Liu, Tieliu Shi
Format: Article
Language:English
Published: BMC 2021-08-01
Series:Genome Medicine
Subjects:
Online Access:https://doi.org/10.1186/s13073-021-00945-4
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author Li Zhang
Jingru Shi
Jian Ouyang
Riquan Zhang
Yiran Tao
Dongsheng Yuan
Chengkai Lv
Ruiyuan Wang
Baitang Ning
Ruth Roberts
Weida Tong
Zhichao Liu
Tieliu Shi
author_facet Li Zhang
Jingru Shi
Jian Ouyang
Riquan Zhang
Yiran Tao
Dongsheng Yuan
Chengkai Lv
Ruiyuan Wang
Baitang Ning
Ruth Roberts
Weida Tong
Zhichao Liu
Tieliu Shi
author_sort Li Zhang
collection DOAJ
description Abstract Background Gene copy number variations (CNVs) contribute to genetic diversity and disease prevalence across populations. Substantial efforts have been made to decipher the relationship between CNVs and pathogenesis but with limited success. Results We have developed a novel computational framework X-CNV ( www.unimd.org/XCNV ), to predict the pathogenicity of CNVs by integrating more than 30 informative features such as allele frequency (AF), CNV length, CNV type, and some deleterious scores. Notably, over 14 million CNVs across various ethnic groups, covering nearly 93% of the human genome, were unified to calculate the AF. X-CNV, which yielded area under curve (AUC) values of 0.96 and 0.94 in training and validation sets, was demonstrated to outperform other available tools in terms of CNV pathogenicity prediction. A meta-voting prediction (MVP) score was developed to quantitively measure the pathogenic effect, which is based on the probabilistic value generated from the XGBoost algorithm. The proposed MVP score demonstrated a high discriminative power in determining pathogenetic CNVs for inherited traits/diseases in different ethnic groups. Conclusions The ability of the X-CNV framework to quantitatively prioritize functional, deleterious, and disease-causing CNV on a genome-wide basis outperformed current CNV-annotation tools and will have broad utility in population genetics, disease-association studies, and diagnostic screening.
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spelling doaj.art-59773080cff24d2787f4d094c6cf1ccc2022-12-21T18:33:59ZengBMCGenome Medicine1756-994X2021-08-0113111510.1186/s13073-021-00945-4X-CNV: genome-wide prediction of the pathogenicity of copy number variationsLi Zhang0Jingru Shi1Jian Ouyang2Riquan Zhang3Yiran Tao4Dongsheng Yuan5Chengkai Lv6Ruiyuan Wang7Baitang Ning8Ruth Roberts9Weida Tong10Zhichao Liu11Tieliu Shi12Center for Bioinformatics and Computational Biology, and the Institute of Biomedical Sciences, School of Life Sciences, East China Normal UniversityCenter for Bioinformatics and Computational Biology, and the Institute of Biomedical Sciences, School of Life Sciences, East China Normal UniversityCenter for Bioinformatics and Computational Biology, and the Institute of Biomedical Sciences, School of Life Sciences, East China Normal UniversitySchool of Statistics, Key Laboratory of Advanced Theory and Application in Statistics and Data Science-MOE, East China Normal UniversityCenter for Bioinformatics and Computational Biology, and the Institute of Biomedical Sciences, School of Life Sciences, East China Normal UniversityCenter for Bioinformatics and Computational Biology, and the Institute of Biomedical Sciences, School of Life Sciences, East China Normal UniversityCenter for Bioinformatics and Computational Biology, and the Institute of Biomedical Sciences, School of Life Sciences, East China Normal UniversityCenter for Bioinformatics and Computational Biology, and the Institute of Biomedical Sciences, School of Life Sciences, East China Normal UniversityNational Center for Toxicological Research, Food and Drug AdministrationApconiX Ltd, Alderley ParkNational Center for Toxicological Research, Food and Drug AdministrationNational Center for Toxicological Research, Food and Drug AdministrationCenter for Bioinformatics and Computational Biology, and the Institute of Biomedical Sciences, School of Life Sciences, East China Normal UniversityAbstract Background Gene copy number variations (CNVs) contribute to genetic diversity and disease prevalence across populations. Substantial efforts have been made to decipher the relationship between CNVs and pathogenesis but with limited success. Results We have developed a novel computational framework X-CNV ( www.unimd.org/XCNV ), to predict the pathogenicity of CNVs by integrating more than 30 informative features such as allele frequency (AF), CNV length, CNV type, and some deleterious scores. Notably, over 14 million CNVs across various ethnic groups, covering nearly 93% of the human genome, were unified to calculate the AF. X-CNV, which yielded area under curve (AUC) values of 0.96 and 0.94 in training and validation sets, was demonstrated to outperform other available tools in terms of CNV pathogenicity prediction. A meta-voting prediction (MVP) score was developed to quantitively measure the pathogenic effect, which is based on the probabilistic value generated from the XGBoost algorithm. The proposed MVP score demonstrated a high discriminative power in determining pathogenetic CNVs for inherited traits/diseases in different ethnic groups. Conclusions The ability of the X-CNV framework to quantitatively prioritize functional, deleterious, and disease-causing CNV on a genome-wide basis outperformed current CNV-annotation tools and will have broad utility in population genetics, disease-association studies, and diagnostic screening.https://doi.org/10.1186/s13073-021-00945-4XGBoostCopy number variationPathogenicityNext-generation sequencingMachine learning
spellingShingle Li Zhang
Jingru Shi
Jian Ouyang
Riquan Zhang
Yiran Tao
Dongsheng Yuan
Chengkai Lv
Ruiyuan Wang
Baitang Ning
Ruth Roberts
Weida Tong
Zhichao Liu
Tieliu Shi
X-CNV: genome-wide prediction of the pathogenicity of copy number variations
Genome Medicine
XGBoost
Copy number variation
Pathogenicity
Next-generation sequencing
Machine learning
title X-CNV: genome-wide prediction of the pathogenicity of copy number variations
title_full X-CNV: genome-wide prediction of the pathogenicity of copy number variations
title_fullStr X-CNV: genome-wide prediction of the pathogenicity of copy number variations
title_full_unstemmed X-CNV: genome-wide prediction of the pathogenicity of copy number variations
title_short X-CNV: genome-wide prediction of the pathogenicity of copy number variations
title_sort x cnv genome wide prediction of the pathogenicity of copy number variations
topic XGBoost
Copy number variation
Pathogenicity
Next-generation sequencing
Machine learning
url https://doi.org/10.1186/s13073-021-00945-4
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