The analysis of UBR7 expression level and survival time in PDAC patients and normal patients showed that UBR7 was significantly reduced in PDAC (Fig. 4A, B), and low UBR7 expression was associated with poor prognosis in patients with multiple tumors (PDAC, kidney renal clear cell carcinoma, kidney renal papillary cell carcinoma and ovarian cancer) (Fig. 4C). The gene discussed is UBR7; the disease is ovarian cancer.