UBQLN4 and glioblastoma: Furthermore, DSS curves in Supplementary Figures 1A–1J suggested that high expression level of UBQLN4 mRNA was associated with poor prognosis in ACC, KICH, MESO, PCPG, PRAD, SARC, SKCM, and UVM, and low expression level of UBQLN4 mRNA was associated with poor prognosis in GBM and LGG.