Blood group H pentasaccharide type 2

Blood group H pentaose type II

The Blood group H pentasaccharide type 2 is a specific carbohydrate epitope found on the surface of red blood cells. It consists of a pentasaccharide structure with a terminal fucose unit that serves as the basis for the H antigen. This compound is the precursor from which the A and B antigens are synthesized, and it is the defining marker for the Type O blood group.