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1. (Article ID: 704)
Fundin J, Weintraub A, Xu J, Widmalm G
NMR analysis of the O-antigen polysaccharide from Escherichia coli strain F171
Magnetic Resonance in Chemistry 41(3) (2003)
202-205
The structure of the O‐antigen polysaccharide from Escherichia coli strain F171 has been determined. NMR analysis of the polysaccharide showed that it was composed of pentasaccharide repeating units. The 1H and 13C signals were assigned by 2D NMR techniques which revealed severe spectral overlap for key resonances at substitution positions. The structure of the repeating unit was deduced from 1H,13C HMBC and, in particular, by 1H,1H NOESY experiments as follows: [see text]. The structure is identical with that of the O‐antigen from Escherichia coli O25 previously determined by chemical degradation methods and the strain F171 should therefore belong to this serogroup. Copyright © 2003 John Wiley & Sons, Ltd.
Lipopolysaccharide, NMR, O-antigen, 13C NMR, 1H NMR, Escherichia coli strain F171, Escherichia coli O25
Publication DOI: 10.1002/mrc.1162Journal NLM ID: 9882600Publisher: Wiley Heyden
Correspondence: G. Widmalm
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Institutions: Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, Stockholm, Sweden, Karolinska Institute, Department of Microbiology, Pathology and Immunology, Division of Clinical Bacteriology, Huddinge University Hospital, S-14186 Stockholm, Sweden, Department of Diarrheal Diseases, National Institute of Communicable Diseases Prevention andControl, China Center for Diseases Control andPrevention, P.O. Box 5, Changping, Beijing 102206, China
Methods: NMR
The publication contains the following compound(s):
- Compound ID: 2186
|
a-L-Rhap-(1-3)-+
|
-4)-a-D-Glcp-(1-3)-a-L-FucpNAc-(1-3)-b-D-GlcpNAc-(1-
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b-D-Glcp-(1-6)-+ |
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Structure type: polymer chemical repeating unit
Compound class: O-polysaccharide, O-antigen
Reference(s) to other database(s): GTC:G18223OD, GlycomeDB:
28106
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