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  • Title: Structural studies of the O-antigenic polysaccharide from Escherichia coli O139.
    Author: Marie C, Weintraub A, Widmalm G.
    Journal: Eur J Biochem; 1998 Jun 01; 254(2):378-81. PubMed ID: 9660194.
    Abstract:
    The structure of the O-antigenic polysaccharide from Escherichia coli O139 has been investigated with the aid of NMR spectroscopy, and sugar and methylation analyses. The sequence of the sugar residues was determined by NOESY and heteronuclear-multiple-bond-connectivity NMR experiments. The polysaccharide is composed of heptasaccharide repeating units containing 0.6 mol O-acetyl groups/repeating unit. The following structure is concluded, where Rha represents rhamnose. [structure in text]
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