CDC6 and neoplasm: In the HPA data, compared with normal tissues, the expression of PKMYT1, ETF1, RECQL4, TUBB2B, and CDC6 in tumor tissues was remarkably upregulated, while the expression of TFRC and PITX1 was significantly downregulated (,ECT2, BUBB1B, and COCH were not included) (Figure 7B).