Figure 3D shows that 13 DE prognostic genes were shared between LGG and GBM (HTR5A, HTR3B, HTR1E, GRM7, GRIN1, GABRG2, GABRB2, GABRA4, GABRA2, GABRA1, DRD1, CHRM3, and ADRA1B). This evidence concerns the gene GABRA1 and glioblastoma.