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  • Title: Structural elucidation of the O-antigenic polysaccharide from Escherichia coli O44:H18.
    Author: Staaf M, Widmalm G, Weintraub A, Nataro JP.
    Journal: Eur J Biochem; 1995 Oct 15; 233(2):473-7. PubMed ID: 7588790.
    Abstract:
    The O-antigen polysaccharide of the lipopolysaccharide from the enteroaggregative Escherichia coli O44:H18 has been investigated. Sugar and methylation analysis, 1H- and 13C-NMR spectroscopy revealed that the polysaccharide is composed of pentasaccharide repeating units. The sequence of sugar residues was determined by use of two-dimensional nuclear Overhauser effect spectroscopy and heteronuclear multiple bond correlation experiments. The structure of the repeating unit of the O-antigen from Escherichia coli O44:H18 is as follows. [formula: see text]
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