UBA6 and colorectal cancer: From the HPA database, we indicated that the protein expression level of UBA1 in colorectal cancer and renal cancer tissues was greater than that in matched normal tissues (Figure 3C), but there was no significant difference in the protein expression of UBA6 (Supplementary Figure S1), which may reveal that UBA1 was more likely to be a promising prognostic factor in these tumors.