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Prioritizing disease and trait causal variants at the TNFAIP3 locus using functional and genomic features

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Item Type:Article
Title:Prioritizing disease and trait causal variants at the TNFAIP3 locus using functional and genomic features
Creators Name:Ray, J.P., de Boer, C.G., Fulco, C.P., Lareau, C.A., Kanai, M., Ulirsch, J.C., Tewhey, R., Ludwig, L.S., Reilly, S.K., Bergman, D.T., Engreitz, J.M., Issner, R., Finucane, H.K., Lander, E.S., Regev, A. and Hacohen, N.
Abstract:Genome-wide association studies have associated thousands of genetic variants with complex traits and diseases, but pinpointing the causal variant(s) among those in tight linkage disequilibrium with each associated variant remains a major challenge. Here, we use seven experimental assays to characterize all common variants at the multiple disease-associated TNFAIP3 locus in five disease-relevant immune cell lines, based on a set of features related to regulatory potential. Trait/disease-associated variants are enriched among SNPs prioritized based on either: (1) residing within CRISPRi-sensitive regulatory regions, or (2) localizing in a chromatin accessible region while displaying allele-specific reporter activity. Of the 15 trait/disease-associated haplotypes at TNFAIP3, 9 have at least one variant meeting one or both of these criteria, 5 of which are further supported by genetic fine-mapping. Our work provides a comprehensive strategy to characterize genetic variation at important disease-associated loci, and aids in the effort to identify trait causal genetic variants.
Keywords:Autoimmune Diseases, Genetic Loci, Genetic Predisposition to Disease, Genetic Variation, Genome-Wide Association Study, Haplotypes, Linkage Disequilibrium, Multifactorial Inheritance, Proof of Concept Study, Tumor Cell Line, Tumor Necrosis Factor alpha-Induced Protein 3
Source:Nature Communications
ISSN:2041-1723
Publisher:Nature Publishing Group
Volume:11
Number:1
Page Range:1237
Date:6 March 2020
Official Publication:https://doi.org/10.1038/s41467-020-15022-4
PubMed:View item in PubMed

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