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Structure of a teichoic acid-like O-polysaccharide of Escherichia coli O29 |
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| Authors: | Perepelov Andrei V Wang Quan Senchenkova Sof'ya N Shevelev Sergei D Zhao Guang Shashkov Alexander S Feng Lu Knirel Yuriy A Wang Lei |
| Affiliation: | N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russian Federation. perepel@ioc.ac.ru |
| 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 with 1H and 13C 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: [carbohydrate structure: see text]. |
| Keywords: | Escherichia coli O-Polysaccharide O-Antigen Bacterial polysaccharide structure Glycerol phosphate NMR |
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