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  • Title: [The structure of O-specific polysaccharide from Pseudomonas aeruginosa 013 containing 5,7-diacetoamido-3,5,7,9-tetradeoxy-D- glycero-L-galacto-nonulosonic acid and 2-acetamidino-2,6-dideoxy-L-galactose].
    Author: Knirel' IuA, Vinogradov EV, Shashkov AS, Dmitriev BA, Kochetkov NK.
    Journal: Bioorg Khim; 1986 Jun; 12(6):848-51. PubMed ID: 2430578.
    Abstract:
    O-Specific polysaccharide chain of P. aeruginosa 013 (Lányi) lipopolysaccharide is composed of N-acetyl-D-quinovosamine (QuiNAc), acetamidino derivative of L-fucosamine (FucNAm), and 5,7-diacetamido-3,5,7,9-tetradeoxy-D-glycero-L-galacto-nonuloso nic acid (Sug). On solvolysis with HF in methanol, the polysaccharide afforded methylglycosides of a disaccharide and a trisaccharide both containing fucosamine and ulosonic acid derivatives. Chemical transformations (alkaline hydrolysis, reductive deamination, acetylation accompanied by intramolecular acylation of acetamidino group by ulosonic acid), 1H and 13C NMR analysis and mass spectral data proved the following structure of the trisaccharide unit of the polysaccharide: -8)-beta-Sug-(1-3)-alpha-L-FucNAm-(1-3)-alpha-D-QuiNAc -(1-
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