In contrast, the molecules involved in GABA receptor signaling (GABBR1, GABRA1, GABRA5, GABRB1, GABRB3, GABRG2, GAD1, GPR51) and glutamate receptor signaling (GLS, GRIA2, GRIA4, GRM1, GRM5, GRM7, SLC17A6, SLC17A7, SLC1A1) were downregulated in the TGFβ strong response glial tumors. Here, GABRG2 is linked to glioma.