title: Structural studies of the O-antigenic polysaccharide of an enteroaggregative Escherichia coli strain.
abstract: The polysaccharide part of the lipopolysaccharide obtained from an enteroaggregative Escherichia coli strain isolated from a young child with diarrhoea in Santiago, Chile (strain 73-1) was investigated. Sugar and methylation analyses of native and partially degraded polysaccharide together with 1H-NMR and 13C-NMR spectroscopy revealed that the polysaccharide is built of pentasaccharide repeating units. The structure of the repeating unit of E. coli strain 73-1 O-polysaccharide is (formula: see text)
authors.affiliation: Department of Clinical Bacteriology, Karolinska Institute, Huddinge Hospital, Sweden.
authors.forename: A
authors.initials: A
authors.lastname: Weintraub
authors.forename: K
authors.initials: K
authors.lastname: Leontein
authors.forename: G
authors.initials: G
authors.lastname: Widmalm
authors.forename: P A
authors.initials: PA
authors.lastname: Vial
authors.forename: M M
authors.initials: MM
authors.lastname: Levine
authors.forename: A A
authors.initials: AA
authors.lastname: Lindberg
mesh_terms: D002236:Carbohydrate Conformation; D002240:Carbohydrate Sequence; D002648:Child; D002677:Chile; D003967:Diarrhea / Q000382:microbiology; D004926:Escherichia coli / Q000737:chemistry* / Q000302:isolation & purification; D006801:Humans; D009682:Magnetic Resonance Spectroscopy / Q000379:methods; D008969:Molecular Sequence Data; D019081:O Antigens; D009844:Oligosaccharides / Q000737:chemistry / Q000302:isolation & purification; D011134:Polysaccharides / Q000737:chemistry; D011135:Polysaccharides, Bacterial / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: D019081:O Antigens; D009844:Oligosaccharides; D011134:Polysaccharides; D011135:Polysaccharides, Bacterial