For example, Carcinoembryonic antigen‐related Cell Adhesion Molecule 5 (CEACAM5), a known prognostic marker for CRC,[24] contains up to 319 N‐glycosylation forms with 9 N‐linked glycosylation sites and 99 N‐glycans in our N‐glycoproteomics data (Figure 1G). This evidence concerns the gene CEACAM5 and colorectal carcinoma.