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Structure of the O-specific polysaccharide of Providencia alcalifaciens O16 containing N-acetylmuramic acid.

The O-specific polysaccharide of Providencia alcalifaciens O16 was obtained by mild-acid degradation of the lipopolysaccharide and studied by chemical methods and NMR spectroscopy, including 2D 1H,(1)H COSY, TOCSY, NOESY, and 1H,(13)C HSQC experiments. It was found that the polysaccharide contains N-acetylmuramic acid, which was isolated by solvolysis with trifluoromethanesulfonic acid and identified by the specific optical rotation and NMR spectroscopy. The following structure of the trisaccharide repeating-unit of the polysaccharide was established:[1]

References

  1. Structure of the O-specific polysaccharide of Providencia alcalifaciens O16 containing N-acetylmuramic acid. Kocharova, N.A., Zatonsky, G.V., Bystrova, O.V., Ziolkowski, A., Wykrota, M., Shashkov, A.S., Knirel, Y.A., Rozalski, A. Carbohydr. Res. (2002) [Pubmed]
 
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