Taxonomic group: bacteria / Proteobacteria
(Phylum: Proteobacteria)
Associated disease: infection due to Escherichia coli [ICD11:
XN6P4 
]
The structure was elucidated in this paperPublication DOI: 10.1002/mrc.1162Journal NLM ID: 9882600Publisher: Wiley Heyden
Correspondence: G. Widmalm <gw
organ.su.se>
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
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
Structure type: polymer chemical repeating unit
Compound class: O-polysaccharide, O-antigen
Contained glycoepitopes: IEDB_135813,IEDB_136105,IEDB_137340,IEDB_141806,IEDB_141807,IEDB_142488,IEDB_144998,IEDB_146664,IEDB_151531,IEDB_225177,IEDB_885823,IEDB_983931,SB_192
Methods: NMR
Comments, role: identical to the O-antigen structure of E. coli O25; published polymerization frame was shifted for conformity with other records.
NCBI Taxonomy refs (TaxIDs): 562Reference(s) to other database(s): GTC:G18223OD, GlycomeDB:
28106
Show glycosyltransferases
There is only one chemically distinct structure:
Found 
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