EGFR and glioblastoma: Clustered EGFR mutations are likewise associated with higher EGFR protein and EGFR p.Y1068 expression in LGG, GBM, and LUAD, cancer types largely affected by activating mutations of EGFR. We also found clustered KIT mutations to be associated with higher c-Kit in TGCT and SKCM (Fig. 5b).