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  • Title: Structure of the O-polysaccharide of Escherichia coli O132.
    Author: Shashkov AS, Zhang W, Perepelov AV, Weintraub A, Liu B, Widmalm G, Knirel YA.
    Journal: Carbohydr Res; 2016 Jun 02; 427():44-7. PubMed ID: 27101383.
    Abstract:
    Mild acid degradation of the lipopolysaccharide of Escherichia coli O132 released its O-polysaccharide. Analysis by 1D and 2D (1)H and (13)C NMR spectroscopy prior and subsequent to O-deacetylation, in conjunction with sugar analysis, revealed a linear pentasaccharide repeating unit of the O-polysaccharide having the following structure: →2)-α-d-Galf-(1→3)-α-l-Rhap2Ac-(1→4)-α-d-Glcp-(1→2)-α-l-Rhap-(1→3)-β-d-GlcpNAc-(1→ Putative functions of genes in the O-antigen gene cluster of E. coli O132 are consistent with the O-polysaccharide structure.
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