DDX56 and cancer: Compared with the diploid, other types (deep deletion and shallow deletion gain amplification) of CNV were significantly correlated with gene expressions of DDX56 (Figure 3E), ZC3H12D (Figure 3G), and PSMC5 (Figure 3H) (p < 0.05), except for CTSL (Figure 3F) (p > 0.05), indicating that CNV might regulate the expression of these genes in cancer.