Structure of the O-specific polysaccharides of Pseudomonas chlororaphis subsp. chlororaphis UCM B-106
Evelina L Zdorovenko1, Alexandra A Kadykova1, Liudmyla D Varbanets2
1N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 47, 119991, Moscow, Russia.
Abstract:
O-specific polysaccharide was obtained from the lipopolysaccharide of Pseudomonas chlororaphis subsp. chlororaphis UCM B-106 and studied by composition analysis along with 1D and 2D (1)H and (13)C NMR spectroscopy. The polysaccharide was found to contain a derivative of pseudaminic acid (Pse) and the following structure of the trisaccharide repeating unit was established: →4)-β-Psep5Ac7Hb-(2 → 6)-β-d-Galf-(1 → 3)-β-d-Galp-(1→ where Pse5Ac7Hb indicates 5-acetamido-3,5,7,9-tetradeoxy-7-[(R)-3-hydroxybutanoylamino]-l-glycero-l-manno-non-2-ulosonic acid.
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