Lewis-b tetrasaccharide (CAS 80081-06-7)

Lewis-b tetrasaccharide is a complex carbohydrate that plays a significant role in glycobiology research. Structurally, it is composed of four monosaccharide units forming a branched oligosaccharide. This tetrasaccharide motif is recognized for its involvement in cell recognition and adhesion processes due to its prevalence in cell surface glycoconjugates. It serves as a ligand for selectins, particularly E-selectin and P-selectin, which are involved in mediating leukocyte-endothelial cell interactions. This characteristic makes Lewis-b tetrasaccharide crucial in studies exploring the mechanisms of inflammation, metastasis, and immune response. In research, this carbohydrate is often synthesized or isolated for use in probing carbohydrate-protein interactions, allowing scientists to dissect the specific binding affinities and signaling pathways associated with leukocyte recruitment and pathogen recognition. Investigations also focus on its role in facilitating microbial adherence to host cells, as many pathogens exploit Lewis-b structures to gain a foothold on mucosal surfaces. Additionally, it is leveraged in developing synthetic glycoconjugates and carbohydrate arrays that mimic naturally occurring glycans, providing deeper insights into glycan-binding proteins and their implications in cellular communication and disease progression. This makes it indispensable in studying glycosylation patterns and their biological consequences.