GP5 and brain cancer: Specifically, C10 shows various uncharacterized genes along with HCK (tyrosine-protein kinase HCK), DMBT1 (deleted in malignant brain tumors 1), ALS (insulin-like growth factor-binding protein complex acid labile subunit), GPV, and IRF8 (interferon regulatory factor 8), FER (tyrosine-protein kinase Fer).