title: Somatic antigens of Shigella: the structure of the polysaccharide chain of Shigella boydii type 2 lipopolysaccharide.
abstract: The structure of the polysaccharide chain of Shigella boydii type 2 lipopolysaccharide was established using mainly 13C-n.m.r. spectroscopy, partial hydrolysis, Smith degradation, and methylation analysis. The repeating unit of the polysaccharide was concluded to be a branched hexasaccharide, as follows: (formula in text). Acetaldehyde was detected in the hyrolysate of the lipopolysaccharide, but no evidence was obtained to indicate that acetaldehyde is located in the polysaccharide moiety.
mesh_terms: D002236:Carbohydrate Conformation; D002240:Carbohydrate Sequence; D008070:Lipopolysaccharides / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D008745:Methylation; D009844:Oligosaccharides / Q000032:analysis; D012760:Shigella / Q000276:immunology*; D012761:Shigella boydii / Q000276:immunology*
chemical_list: D008070:Lipopolysaccharides; D009844:Oligosaccharides