Five of the common predicted proteins interacting with A5 or C1 (namely ABCB1, CYP2B6, CYP2C9, DRD1 and DRD5) had their mRNA level assessed in the patient-derived GBM cells by RT-qPCR (Fig. 5A–E, respectively). This evidence concerns the gene CYP2C9 and glioblastoma.