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KMID : 1132720200180010011
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Genomics & Informatics
2020 Volume.18 No. 1 p.11 ~ p.11
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HisCoM-PCA: software for hierarchical structural component analysis for pathway analysis based using principal component analysis
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Jiang Nan
Lee Sung-Young
Park Tae-Sung
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Abstract
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In genome-wide association studies, pathway-based analysis has been widely performed to enhance interpretation of single-nucleotide polymorphism association results. We proposed a novel method of hierarchical structural component model (HisCoM) for pathway analysis of common variants (HisCoM for pathway analysis of common variants [HisCoM-PCA]) which was used to identify pathways associated with traits. HisCoM-PCA is based on principal component analysis (PCA) for dimensional reduction of single nucleotide polymorphisms in each gene, and the HisCoM for pathway analysis. In this study, we developed a HisCoM-PCA software for the hierarchical pathway analysis of common variants. HisCoM-PCA software has several features. Various principle component scores selection criteria in PCA step can be specified by users who want to summarize common variants at each gene-level by different threshold values. In addition, multiple public pathway databases and customized pathway information can be used to perform pathway analysis. We expect that HisCoM-PCA software will be useful for users to perform powerful pathway analysis.
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KEYWORD
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genome-wide association study, hierarchical structural component model, pathway analysis, principal component analysis
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