VSEAMS: a pipeline for variant set enrichment analysis using summary GWAS data identifies IKZF3, BATF and ESRRA as key transcription factors in type 1 diabetes

Bioinformatics. 2014 Dec 1;30(23):3342-8. doi: 10.1093/bioinformatics/btu571. Epub 2014 Aug 27.

Abstract

Motivation: Genome-wide association studies (GWAS) have identified many loci implicated in disease susceptibility. Integration of GWAS summary statistics (P-values) and functional genomic datasets should help to elucidate mechanisms.

Results: We extended a non-parametric SNP set enrichment method to test for enrichment of GWAS signals in functionally defined loci to a situation where only GWAS P-values are available. The approach is implemented in VSEAMS, a freely available software pipeline. We use VSEAMS to identify enrichment of type 1 diabetes (T1D) GWAS associations near genes that are targets for the transcription factors IKZF3, BATF and ESRRA. IKZF3 lies in a known T1D susceptibility region, while BATF and ESRRA overlap other immune disease susceptibility regions, validating our approach and suggesting novel avenues of research for T1D.

Availability and implementation: VSEAMS is available for download (http://github.com/ollyburren/vseams).

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Basic-Leucine Zipper Transcription Factors / genetics
  • Diabetes Mellitus, Type 1 / genetics*
  • ERRalpha Estrogen-Related Receptor
  • Genome-Wide Association Study*
  • Humans
  • Ikaros Transcription Factor / genetics
  • Polymorphism, Single Nucleotide
  • Receptors, Estrogen / genetics
  • Sample Size
  • Software*
  • Transcription Factors / genetics*

Substances

  • BATF protein, human
  • Basic-Leucine Zipper Transcription Factors
  • IKZF3 protein, human
  • Receptors, Estrogen
  • Transcription Factors
  • Ikaros Transcription Factor