Abstract
It has been shown by13C NMR spectroscopy that the O-specific polysaccharide fromYersinia pseudotuberculosis serovar VB (strain R2) consists of regularly repeating pentasaccharide units. D-Galactose, D-mannose, and L-fucose residues have been identified in the polysaccharide. The presence of 6-deoxy-L-altrose has been shown by paper, gas-liquid, and thin-layer chromatographies, mass spectrometry, and1H and13C NMR spectroscopy, and the L configuration of the monosaccharide has been determined polarimetrically. It has been shown that the repeating unit of the polysaccharide contains two L-fucose residues and one residue each of 6-deoxy-L-altrose, D-mannose, and D-galactosamine.
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