However, worth pointing out is that GSAPS is not synonymous with the GBM subtypes gene sets, but instead the GPC‐like and GM‐like protein sets describe two phenotypic GSC conditions that are mutually exclusive, reflecting the proneural‐to‐mesenchymal axis, and having an inverse association with necrosis, recurrence, and OS in GBM. This evidence concerns the gene PPP1R3A and glioblastoma.