USP13 and neoplasm: Protein expression of USP13 was found to be downregulated in tumor tissues compared with normal tissue samples in pancreatic adenocarcinoma (PAAD) (C), head and neck squamous carcinoma (HNSC) (D), clear cell renal carcinoma (ccRCC) (E) and uterine corpus endometrial carcinoma (UCEC) (F) by UALCAN.