Journal
NATURE GENETICS
Volume 50, Issue 8, Pages 1180-+Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/s41588-018-0159-z
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Funding
- Arthritis National Research Foundation
- National Multiple Sclerosis Society [NIH R21 NS096443, NIH R21 AR070378]
- Rheumatology Research Foundation [NIH R01 AR065538, NIH P30 AR070253]
- Fundacion Bechara
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Genome-wide association studies (GWAS) have identified many disease-associated noncoding variants, but cannot distinguish functional single-nucleotide polymorphisms (fSNPs) from others that reside incidentally within risk loci. To address this challenge, we developed an unbiased high-throughput screen that employs type IIS enzymatic restriction to identify fSNPs that allelically modulate the binding of regulatory proteins. We coupled this approach, termed SNP-seq, with flanking restriction enhanced pulldown (FREP) to identify regulation of CD40 by three disease-associated fSNPs via four regulatory proteins, RBPJ, RSRC2 and FUBP-1/TRAP150. Applying this approach across 27 loci associated with juvenile idiopathic arthritis, we identified 148 candidate fSNPs, including two that regulate STAT4 via the regulatory proteins SATB2 and H1.2. Together, these findings establish the utility of tandem SNP-seq/FREP to bridge the gap between GWAS and disease mechanism.
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