Abstract
It remains challenging to predict regulatory variants in particular tissues or cell types due to highly context-specific gene regulation. By connecting large-scale epigenomic profiles to expression quantitative trait loci (eQTLs) in a wide range of human tissues/cell types, we identify critical chromatin features that predict variant regulatory potential. We present cepip, a joint likelihood framework, for estimating a variant's regulatory probability in a context-dependent manner. Our method exhibits significant GWAS signal enrichment and is superior to existing cell type-specific methods. Furthermore, using phenotypically relevant epigenomes to weight the GWAS single-nucleotide polymorphisms, we improve the statistical power of the gene-based association test.
Original language | English (US) |
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Article number | 52 |
Journal | Genome biology |
Volume | 18 |
Issue number | 1 |
DOIs | |
State | Published - Mar 16 2017 |
Keywords
- Cell type-specific
- Disease-susceptible gene
- Epigenome
- Regulatory variant
- Variant prioritization
ASJC Scopus subject areas
- Ecology, Evolution, Behavior and Systematics
- Genetics
- Cell Biology