Glycosylation, the process of attaching glycans to proteins or other organic molecules, is one of the most common post-translational modifications (PTMs). Glycans are highly branched carbohydrate structures, consisting of monosaccharide sugars, such as fucose, galactose, manose, sialic acid, and N-acetylglucosamine. Due to the complexity and diversity of composition and structure of glycans, and the site of glycan attachment, glycosylation may affect product stability, immunogenicity, serum clearance, pharmacokinetics, and anti-inflammatory activity. Therefore, glycosylation is a Critical Quality Attribute (CQA) that must be presented. Glycosylation analysis is critical step to ensure safety and potency of biopharmaceutical products during the process of drug discovery. glycosylation analysis https://www.creative-proteomics.com/pronalyse/glycosylation-sites-and-oligosaccharides-analysis-service.html