Core trisaccharide type 1

Galβ1-3GlcNAcβ1-3Gal

Core trisaccharide type 1 is a specific carbohydrate epitope that serves as a foundational structure for many blood group antigens and other complex glycans on cell surfaces. Its structure is a trisaccharide of Gal(β1-3)GlcNAc(β1-3)Gal. This compound is a precursor for the synthesis of a variety of complex sugar chains and is crucial in defining the structural diversity of surface carbohydrates.