S. flexneri serotype 5b O-specific polysaccharide
s. flexneri serotype 5b o-specific polysaccharide
A polysaccharide derivative antigen composed of a backbone of repeating α-<small>D</small>-Glc-(1→3)-α-<small>L</small>-Rha-(1→2)-[α-<small>D</small>-Glc-(1→3)]-α-<small>L</small>-Rha-(1→3)-α-<small>L</small>-Rha-(1→3)-β-<small>D</small>-GlcNAc units that are connected via β-(1→2)-linkages between the GlcNAc and the Rha residue adjacent to the first Glc.