STRUCTURE OF THE O-POLYSACCHARIDE OF PROVIDENCIA STUARTII O49

Ivan S. Bushmarinov a, Olga G. Ovchinnikova a, Nina A. Kocharova a, Aleksandra Blaszczyk b, Filipp V. Toukach a, Agnieszka Torzewska b, Alexander S. Shashkov a, Yuriy A. Knirel a and Antoni Rozalski b

aN. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia
bDepartment of Immunobiology of Bacteria, Institute of Microbiology and Immunology, University of Lodz, Poland

KEYWORDS: lipopolysaccharide, O-polysaccharide, bacterial polysaccharide structure, Providencia stuartii

Carbohydrate Research, 2004, v. 339, pp. 1557-1560

DOI: 10.1016/j.carres.2004.03.021


The O-specific polysaccharide chain (O-antigen) of the lipopolysaccharide (LPS) of Providencia stuartii 049 was studied using sugar and methylation analyses along with 1H and 13C NMR spectroscopy, including two-dimensional COSY, TOCSY, ROESY, H-detected 1H,13C HSQC and HMBC experiments. The polysaccharide was found to have the trisaccharide repeating unit with the following structure:

>6)bDGalp(l->3)bDGalpNAc(1->4)aDGalp(1->

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