Cell surface carbohydrate moiety

Cell surface carbohydrate moieties are diverse sugar chains covalently attached to glycoproteins and glycolipids present on the outer leaflet of the plasma membrane. These structures play crucial roles in cell-cell recognition, adhesion, and signaling by serving as binding sites for lectins (carbohydrate-binding proteins) and other cell-surface receptors. They are involved in physiological processes such as immune surveillance, inflammation, fertilization, and pathogen attachment. The composition and spatial organization of these carbohydrates contribute to the creation of functional cell surface microdomains, influence interactions with extracellular matrix proteins, and modulate cellular responses in health and disease. Aberrant expression or modification of cell surface carbohydrates is associated with pathological processes, including tumor progression and immune evasion[4][3][1][5]. There is no single canonical receptor or gene product defined by the term "carbohydrate moiety on cell surface"; instead, it designates a structural motif found in many molecular families. For therapeutic targeting or drug discovery, identification of a specific glycoprotein, glycolipid, or carbohydrate epitope is necessary.

Other names

Cell surface carbohydratesSurface glycansCell surface glycanCarbohydrate chain on plasma membrane