Using a Vα3S1/Vβ13S1 T-cell receptor (TCR) from a lesional psoriatic CD8+ T-cell clone, we recently demonstrated that in psoriasis, the major psoriasis risk allele HLA-C*06:02 mediates an autoimmune response of CD8+ T-cells against melanocytes by presenting a melanocyte autoantigen. The gene discussed is HLA-C; the disease is psoriasis.