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  • Title: [Chemical characteristics and endotoxic activity of the lipopolysaccharide of Rahnella aquatilis 2-95].
    Author: Varbanets LD, Zdorovenko EL, Ostapchuk AN.
    Journal: Mikrobiologiia; 2008; 77(3):342-9. PubMed ID: 18683651.
    Abstract:
    The lipopolysaccharide (LPS) from a new Enterobacteriaceae species, Rahnella aquatilis 2-95, was isolated and investigated. The structural components of the LPS molecule, namely, lipid A, core oligosaccharide, and O-specific polysaccharide, were obtained by mild acid hydrolysis. In lipid A, 3-oxytetradecanoic and tetradecanoic acids were found to be the predominant fatty acids. The major monosaccharides of the core oligosaccharide were galactose, arabinose, fucose, rhamnose, and an unidentified component. The O-specific polysaccharide was found to be assembled of a repeated trisaccharide unit of the following structure: [structure: see text]. The R. aquatilis 2-95 LPS is less toxic and more pyrogenic as compared to the one from the R. aquatilis 1-95 strain studied earlier. Both acyl and phosphate groups are essential for toxic and pyrogenic activity of R. aquatilis 2-95 LPS.
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