Structure of a teichoic acid-like O-polysaccharide of Escherichia coli O29

  • Perepelov A
  • Wang Q
  • Senchenkova S
 et al. 
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Abstract

A teichoic acid-like O-polysaccharide was isolated by mild acid degradation of the lipopolysaccharide (LPS) of Escherichia coli O29. The O-polysaccharide and an oligosaccharide obtained by dephosphorylation of the O-polysaccharide were studied by sugar analysis along with1H and13C NMR spectroscopy. The following structure of the branched oligosaccharide repeating unit, containing five monosaccharide residues and glycerol 1-phosphate (d-Gro-1-P), was established:{A figure is presented}. © 2006 Elsevier Ltd. All rights reserved.

Author-supplied keywords

  • Bacterial polysaccharide structure
  • Escherichia coli
  • Glycerol phosphate
  • NMR
  • O-Antigen
  • O-Polysaccharide

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