Fig. 2.

Expression of ASIP in full, dermal, and epidermal layers of skin. a Plot of eQTL analysis on ASIP, where expression of ASIP is strongly associated with pigmentation variants rs17305573, rs910873 and rs1885120 in skin full-layer biopsy samples. b ASIP is exclusively expressed in the dermal layer of skin, and not in the epidermal layer of skin (nd not detected). Samples derived from the dermal layer are denoted with ‘D’, samples derived from the epidermal layer are denoted with ‘E’. Sample 1 has the rs1885120-CC genotype, with a dark skin phenotype, sample 2 has the rs1885120-CC genotype, with a light skin phenotype, sample 3 has the rs1885120-CT genotype, with a light skin phenotype