CD8A and type 1 diabetes mellitus: In T1D, we identified colocalization enrichment in CD8+ T-cells (enrichment = 6.15; p = 1.95E − 05) (Fig. 5B), while the heritability for this trait was also enriched in CD8+ T-cells (p = 4.77E − 02) (Additional file 7: Table S6B).