These tumors were also tested for the presence of the major histocompatibility complex (MHC) class I molecule H2Kb and PD-1 ligand 1 (PD-L1), which represented 75.2 ± 9.8% and 21.33 ± 4.45% of the tumor cells, respectively (Figure 1e and Figure S2). The gene discussed is CD274; the disease is neoplasm.