and cell subtypes. If an eGene was present in more than one tissue, it was counted only once. To exclude the possibility of eQTL enrichment overestimation due to the gene-rich MHC region, we performed eQTL enrichment analysis both including and excluding SNPs in the HLA region. The enrichment was considered significant if the empirical p-value exceeded Bonferroni multiple testing correction threshold p<0.0036 (i.e. 0.05/14 tissues).
