tooluniverse-gwas-finemapping

Installation
SKILL.md

GWAS Fine-Mapping & Causal Variant Prioritization

Identify and prioritize causal variants at GWAS loci using statistical fine-mapping and locus-to-gene predictions.

Overview

Genome-wide association studies (GWAS) identify genomic regions associated with traits, but linkage disequilibrium (LD) makes it difficult to pinpoint the causal variant. Fine-mapping uses Bayesian statistical methods to compute the posterior probability that each variant is causal, given the GWAS summary statistics.

This skill provides tools to:

  • Prioritize causal variants using fine-mapping posterior probabilities
  • Link variants to genes using locus-to-gene (L2G) predictions
  • Annotate variants with functional consequences
  • Suggest validation strategies based on fine-mapping results

Key Concepts

Credible Sets

A credible set is a minimal set of variants that contains the causal variant with high confidence (typically 95% or 99%). Each variant in the set has a posterior probability of being causal, computed using methods like:

  • SuSiE (Sum of Single Effects)
Related skills

More from wu-yc/labclaw

Installs
15
Repository
wu-yc/labclaw
GitHub Stars
993
First Seen
Mar 15, 2026