S. flexneri serotype 1a O-polysaccharide (O factor 9-negative)
S. flexneri serotype 1a O-polysaccharide (O factor 9-positive)
S. flexneri serotype 1b O-polysaccharide (O factor 9-positive)
S. flexneri serotype 2a O-polysaccharide (O factor 9-negative)
S. flexneri serotype 2a O-polysaccharide (O factor 9-positive)
S. flexneri serotype 2a O-specific polysaccharide
S. flexneri serotype 2b O-specific polysaccharide
S. flexneri serotype 3a O-specific polysaccharide
S. flexneri serotype 5a O-polysaccharide (O factor 9-negative)
S. flexneri serotype 5a O-polysaccharide (O factor 9-positive)
S. flexneri serotype 5a O-specific polysaccharide
S. flexneri serotype 5b O-specific polysaccharide
S. flexneri serotype 6 O-polysaccharide (O factor 9-positive)
S. flexneri serotype X O-specific polysaccharide
S. flexneri serotype Y O-polysaccharide (O factor 9-negative)
S. flexneri serotype Y O-polysaccharide (O factor 9-positive)
A polysaccharide derivative comprised of a [2)-alpha-L-Rhap(III)-(1->2)-alpha-L-Rhap(II)-(1->3)-alpha-L-Rhap(I)-(1->3)-beta-D-GlcpNAc-(1->] tetrasaccharide repeat modified by addition of acetyl groups to 40% of the O-6 positions of the GlcNAc residue and to either O-3 or O-4 of many of the Rha(III) residues (30% to O-3; 20% to O-4). The structure provided is representative of that in Shigella flexneri serotype Y and shows the most common repeating unit.
S. flexneri Y polysaccharide
succinoglucan
teichoic acid +
tetraoleyl cardiolipin
tumour antigen +
type Ib group B Streptococcus capsular polysaccharide