Structural Analysis of the O‐antigenic Polysaccharide from Vibrio cholerae O10

The structure of the O-antigenic polysaccharide part of the lipopolysaccharide isolated from Vibrio cholerae O10 has been determined. The main method used has been 1H- and 13C-NMR spectroscopy. Sugar and methylation analyses were also applied to the polysaccharide. The tetrasaccharide repeating unit of the polysaccharide was found to have the following structure: