Abstract:
:To further resolve the genetic architecture of the inflammatory bowel diseases ulcerative colitis and Crohn's disease, we sequenced the whole genomes of 4,280 patients at low coverage and compared them to 3,652 previously sequenced population controls across 73.5 million variants. We then imputed from these sequences into new and existing genome-wide association study cohorts and tested for association at ∼12 million variants in a total of 16,432 cases and 18,843 controls. We discovered a 0.6% frequency missense variant in ADCY7 that doubles the risk of ulcerative colitis. Despite good statistical power, we did not identify any other new low-frequency risk variants and found that such variants explained little heritability. We detected a burden of very rare, damaging missense variants in known Crohn's disease risk genes, suggesting that more comprehensive sequencing studies will continue to improve understanding of the biology of complex diseases.
journal_name
Nat Genetjournal_title
Nature geneticsauthors
Luo Y,de Lange KM,Jostins L,Moutsianas L,Randall J,Kennedy NA,Lamb CA,McCarthy S,Ahmad T,Edwards C,Serra EG,Hart A,Hawkey C,Mansfield JC,Mowat C,Newman WG,Nichols S,Pollard M,Satsangi J,Simmons A,Tremelling M,Uhdoi
10.1038/ng.3761subject
Has Abstractpub_date
2017-02-01 00:00:00pages
186-192issue
2eissn
1061-4036issn
1546-1718journal_volume
49pub_type
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