Structure of the capsular polysaccharide (K98 antigen) of E. coli O7:K98:H6.
The capsular polysaccharide (K98 antigen) of E. coli O7:K98:H6 contains rhamnose, glucuronic acid, and acetate in the molar ratios 3:1:0.6. Methylation analysis, oligosaccharide analysis, and 1D- and 2D-n.m.r. spectroscopy revealed the polysaccharide to be a glucuronic acid-substituted rhamnan with the structure [formula; see text] Of the 3-linked rhamnose residues, approximately 60% are O-acetylated at position 2.
Hahne
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Max-Planck-Institut für Immunobiologie, Freiburg-Zähringen, Germany.
Jann
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B
Jann
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D016667:Bacterial Capsules; D002236:Carbohydrate Conformation; D002240:Carbohydrate Sequence; D002241:Carbohydrates / Q000032:analysis; D004926:Escherichia coli / Q000276:immunology*; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D008969:Molecular Sequence Data; D011135:Polysaccharides, Bacterial / Q000737:chemistry* / Q000302:isolation & purification
D002241:Carbohydrates; D011135:Polysaccharides, Bacterial; C074482:capsular polysaccharide K98