In the TCGA project, a comprehensive genomic characterization study for GBM, some significant mutations, and somatic genome alterations were detected, including TP53, EGFR, PTEN, NF1, PIK3CA PIK3R1, RB1, SPTA1, ATRX, IDH1, KEL, PDGFRA, and GABRA6. Here, RB1 is linked to glioblastoma.