HLA-DOA and neoplasm: The MHCs affect cancer types among different clusters, including BLCA, BRCA, CESC, HNSC, KIRP, KIRC, LIHC, PRAD, STAD, and THCA; B2M, HLA-DOA, TAP1, TAP2, and TAPBP are affected in most tumor types (Figure 7A).