The primary source of FA3G3S3 glycan is vitronectin [42], a glycoprotein involved in cell adhesion, extracellular matrix binding, and blood coagulation [65], and its glycosylation pattern mainly includes non-fucosylated N-glycans, with the site-specific core-fucosylation being a possible indicator of malignant changes, such as hepatocellular carcinoma [66]. This evidence concerns the gene VTN and hepatocellular carcinoma.