A polysaccharide derivative composed of a backbone of repeating beta-D-galactosyl-(1->4)-N-acetyl-beta-D-glucosaminyl-(1->3)-beta-D-galactosyl-(1->4)-beta-D-glucosyl that are joined via (1->6)-linkages between the glucosyl and N-acetylglucosaminyl residues.
\{6)-[beta-D-GlcpA-(1->3)]-beta-D-GalpNAc-(1->\}n
A. baumannii strain 54149 exopolysaccharide
A. haemolyticus strain 57 O-specific polysaccharide
A. haemolyticus strain 61 O-specific polysaccharide