The structure of the O-specific polysaccharide from Escherichia coli O113 lipopolysaccharide.
The O-specific polysaccharide from Escherichia coli O113 lipopolysaccharide was separated from the core and lipid A by mild acid hydrolysis and purified by GPC. Methylation analysis and 1H and 13C NMR spectroscopic studies of the O-deacetylated polysaccharide allowed the determination of the structure of the pentasaccharide repeating unit of the polysaccharide which can be written as [equation: see text] The position of the O-acetyl groups was not determined.
Parolis
H
H
School of Pharmaceutical Sciences, Rhodes University, Grahamstown, South Africa.
Parolis
L A
LA
D002240:Carbohydrate Sequence; D004926:Escherichia coli / Q000737:chemistry*; D008070:Lipopolysaccharides / Q000737:chemistry* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D008745:Methylation; D008969:Molecular Sequence Data; D019081:O Antigens; D009844:Oligosaccharides / Q000737:chemistry; D011135:Polysaccharides, Bacterial / Q000737:chemistry* / Q000276:immunology
D008070:Lipopolysaccharides; D019081:O Antigens; D009844:Oligosaccharides; D011135:Polysaccharides, Bacterial