Terms and categories such as “calcium signaling pathway,” “CAMs,” “extracellular matrix receptor interaction,” “focal adhesion,” “gap junction,” “collagen-containing extracellular matrix,” “contractile fiber,” “glycosaminoglycan binding,” “hormone binding,” and “muscle system processes” were highly enriched in the high-risk group, indicating that the seven CDGs are involved in these signaling pathways in GC. This evidence concerns the gene PMM2 and gastric cancer.