PTK2B and glioblastoma: This correlated with PTK2 (FAK) and PTK2B (Pyk2) gene-expression analysis of 540 GBM cases from the glioblastoma tumor RNA-Sequence dataset (R2 Genomic Analysis Visualization Platform), indicating no significant difference in Pyk2 and FAK gene expression between newly diagnosed and recurrent GBM tumors (Supplementary Figure S1).