title: Hydrolytic release, and identification by g.l.c.-m.s., of 3-deoxy-D-manno-2-octulosonic acid in the lipopolysaccharides isolated from bacteria of the Vibrionaceae.
abstract: The identification of the peracetylated methyl glycosides of 3-deoxy-D-manno-2-octulosonic acid (KDO) methyl esters was achieved by g.l.c.-m.s. These peracetylated methyl glycoside methyl esters were obtained from fully acetylated lipopolysaccharides and core oligosaccharides of representative strains of the Vibrionaceae family by the following sequence of mild reactions: acetolysis, methanolysis, and acetylation. KDO was shown to be present in all of the lipopolysaccharides (LPS), a result in direct contrast to the generally accepted view of the absence of this compound in LPS from this family of bacteria.
mesh_terms: D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods; D008070:Lipopolysaccharides / Q000302:isolation & purification; D013045:Species Specificity; D013400:Sugar Acids / Q000032:analysis*; D014737:Vibrionaceae / Q000276:immunology*
chemical_list: D008070:Lipopolysaccharides; D013400:Sugar Acids; C002532:2-keto-3-deoxyoctonate