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Structural elucidation of the capsular polysaccharide produced by Escherichia coli O20 : K84 : H26

✍ Scribed by Darryl V. Whittaker; Lesley A.S. Parolis; Haralambos Parolis

Publisher: Elsevier Science
Year: 1994
Tongue: English
Weight: 752 KB
Volume: 262
Category: Article
ISSN: 0008-6215
DOI: 10.1016/0008-6215(94)84188-8

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✦ Synopsis

The primary structure of the acidic capsular antigen produced by E. coli K84 was shown by glycose and methylation analysis, and by 1D and 2D 1H and 13C NMR studies of the polysaccharide and an oligosaccharide produced by lithium-ethylenediamine degradation of the polysaccharide, to be comprised of linear hexasaccharide repeating units of the following structure: -->4)alpha-D-GaI pA-(1-->3)-alpha-D-Man p-(1-->4)-beta-D-GIc p-(1-->3)-alpha- D-Glc pNAc-(1-->2)-beta-D-Man p-(1-->3)-beta-D-Man pNAc-(1-->.

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