ArticleAmerican journal of human genetics2014
Partitioning heritability of regulatory and cell-type-specific variants across 11 common diseases.
Article in American journal of human genetics, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 387 papers, 4 of them syntheses that pooled it.
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Who cites it
387 citing papers in PubMed, 4 syntheses or guidelines pooled it.
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- Biological insights from multi-omic analysis of 31 genomic risk loci for adult hearing difficulty.PLoS genetics · 2020Pooled it
- Identification of a 1p21 independent functional variant for abdominal obesity.International journal of obesity (2005) · 2019Pooled it
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327 more citing papers are in PubMed but not listed here.
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Authors and funding
25 authors.
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Abstract
Regulatory and coding variants are known to be enriched with associations identified by genome-wide association studies (GWASs) of complex disease, but their contributions to trait heritability are currently unknown. We applied variance-component methods to imputed genotype data for 11 common diseases to partition the heritability explained by genotyped SNPs (hg(2)) across functional categories (while accounting for shared variance due to linkage disequilibrium). Extensive simulations showed that in contrast to current estimates from GWAS summary statistics, the variance-component approach partitions heritability accurately under a wide range of complex-disease architectures. Across the 11 diseases DNaseI hypersensitivity sites (DHSs) from 217 cell types spanned 16% of imputed SNPs (and 24% of genotyped SNPs) but explained an average of 79% (SE = 8%) of hg(2) from imputed SNPs (5.1× enrichment; p = 3.7 × 10(-17)) and 38% (SE = 4%) of hg(2) from genotyped SNPs (1.6× enrichment, p = 1.0 × 10(-4)). Further enrichment was observed at enhancer DHSs and cell-type-specific DHSs. In contrast, coding variants, which span 1% of the genome, explained <10% of hg(2) despite having the highest enrichment. We replicated these findings but found no significant contribution from rare coding variants in independent schizophrenia cohorts genotyped on GWAS and exome chips. Our results highlight the value of analyzing components of heritability to unravel the functional architecture of common disease.
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