Abstract

The structure of the core-lipid A region of the lipopolysaccharides from Bordetella hinzii and Bordetella bronchiseptica has been analyzed. Lipopolysaccharides were deacylated using strong alkaline hydrolysis, the products were separated by high performance anion-exchange chromatography and analyzed by NMR and mass spectrometry. The following structure of the products can be deduced from the experimental results: where for the product from Bordetella hinzii N = H, R = H, beta-FucN4N- or partially N-acetylated Sug-(1-3)-beta-FucN4N and for the product from Bordetella bronchiseptica N = alpha-Hep, R = H, beta-FucN4N, beta-FucN4NMe or partially N-acetylated Sug-(1-3)-beta-FucN4N or Sug-(1-3)-beta-FucN4NMe; Sug = 2,3-diamino-2,3, 4-trideoxy-hex-4-enuronopyranosyl.

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