RBP2 and gastric cancer: Interestingly, the signature EGC_NOR [12] significantly overlaps with GA_NOR [53] with FET P < 6.3E −15, and they share some important genes such as RBP2, FHL1, and NME1. RBP2 was found to be overexpressed in GC and plays some key roles in the process of gastric carcinogenesis [54,55].