L2g

The “locus-to-gene” (L2G) model derives features to prioritize likely causal genes at each GWAS locus based on genetic and functional genomics features. The main categories of predictive features are:

  • Distance: (from credible set variants to gene)
  • Molecular QTL Colocalization
  • Chromatin Interaction: (e.g., promoter-capture Hi-C)
  • Variant Pathogenicity: (from VEP)

Some of the predictive features weight variant-to-gene (or genomic region-to-gene) evidence based on the posterior probability that the variant is causal, determined through fine-mapping of the GWAS association.

For a more detailed description of how each feature is computed, see the L2G Feature documentation.

Details of the L2G model are provided in our Nature Genetics publication (ref - Nature Genetics Publication):

  • Title: An open approach to systematically prioritize causal variants and genes at all published human GWAS trait-associated loci.
  • Authors: Mountjoy, E., Schmidt, E.M., Carmona, M. et al.
  • Journal: Nat Genet 53, 1527–1533 (2021).
  • DOI: 10.1038/s41588-021-00945-5