Figure 5.

Known and predicted capsule polysaccharide structures of wciE capsule-type variants. Symbol Nomenclature for Glycan diagrams of the capsule PS repeat units of wciE-positive (top row) and wciE-negative (bottom row) capsule types. Structures predicted according to cps locus sequence analysis (see text) are denoted by an “X” in their names. cps-encoded glycosyl transferases (red), Wzy polymerases (green, left), initial transferases (green, right), and O-acetyltransferases (blue) are listed next to the structures they putatively synthesize, with brackets denoting enzymes whose presence is inferred according to analyses. The symbol key is found in Fig. 1A. cps, capsule synthesis; PS, polysaccharide.