Survival analysis of MCM4 expression showed that high expression of MCM4 was significantly associated with poor GBM prognosis (Log‐rank test, P = 0.036 for TCGA, P = 6.4e‐5 for GSE4271, P = 0.048 for GSE4412, and P = 0.0019 for GSE13041, Fig. 6E). The gene discussed is MCM4; the disease is glioblastoma.