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Biochem Cell Biol. 1987 Nov;65(11):968-77.

Analysis of the lipopolysaccharide of Pseudomonas maltophilia 555.

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Division of Biological Sciences, National Research Council, Ottawa, Ont., Canada.


The phenol phase soluble lipopolysaccharide of Pseudomonas maltophilia strain 555, obtained from cells by the hot aqueous phenol method, was of the smooth type. Sodium dodecyl sulfate-polyacrylamide gel electrophoresis, hydrolysis, methylation, and 13C and 1H nuclear magnetic resonance analyses showed that this lipopolysaccharide has an O-chain polysaccharide composed of a repeating pentasaccharide unit, containing D-rhamnose (D-Rha, one part), 3-acetamido-3,6-dideoxy-D-galactose (D-Fuc3NAc, one part), and 4-acetamido-4,6-dideoxy-D-mannose (D-Rha4NAc, three parts) and having the structure (formula; see text) The serological cross-reactions between P. maltophilia 555 and Brucella species can now be related to the occurrence of N-acyl derivatives of 4-amino-4,6-dideoxy-D-mannopyranosyl residues in the O-chains of their respective lipopolysaccharide components.

[Indexed for MEDLINE]

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