SK‐MEL‐5, Malme‐3M, A375, and U‐266 tumor cell lines were all previously shown to display HLA‐A*02 and express MART‐1 protein (SK‐MEL‐5 and Malme‐3M), and was confirmed using flow cytometry and western blot analysis (Supporting Information: Figure S3). Here, MLANA is linked to neoplasm.