Structure of the O-specific polysaccharide from a marine bacterium Oceanisphaera litoralis KMM 3654T containing ManNAcA

The O-specific polysaccharide was isolated from the lipopolysaccharide of a marine bacterium Oceanisphaera litoralis KMM 3654T and studied by chemical methods along with 1H and 13C NMR spectroscopy. The following new structure of the O-specific polysaccharide of O. litoralis containing d-glucose and two residues of 2-acetamido-2-deoxy-d-mannuronic acid was established: