SLC68A1 and leprosy: In skin and peripheral nervous tissue, however, there is evidence for colocalisation between the leprosy risk locus and an eQTL for TMEM180 expression (Fig 3B, PP4 = 0.92 and PP4 = 0.95 respectively), with the leprosy protective allele being associated with reduced expression of TMEM180 in both cell types (skin—sun unexposed, p = 1.84 × 10−10, β = −0.174; tibial nerve, p = 1.07 × 10−59, β = −0.596).