Journal
CARBOHYDRATE RESEARCH
Volume 344, Issue 4, Pages 531-534Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carres.2008.12.010
Keywords
Yersinia pseudoatuberculosis; O-Antigen; Bacterial polysaccharide structure; Tyvelose
Funding
- Russian Foundation for Basic Research [08-04-00403]
- Council on Grants at the President of the Russian Federation [MK-5304.2007.4]
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The O-specific polysaccharide was isolated by mild acid degradation of the lipopolysaccharide of Yersinia pseudotuberculosis O:4a and studied by NMR spectroscopy, including 2D ROESY and H-1, C-13 HMBC experiments. The following structure of the pentasaccharide repeating unit of the polysaccharide was established, which differs from the structure reported earlier [Gorshkova, R. P. et al., Bioorg. Khim. 1983, 9, 1401-1407] in the linkage modes between the monosacchar des: [GRAPHICS] Yersinia pseudotuberculosh O:4a O-polysaccharide repeating unit where Tyv stands for 3,6-dideoxy-D-arabino-hexose (tyvelose). The structure of the Y. pseudotuberculosis O:4a antigen resembles that of Y. pseudotuberculosis O:2c, which differs in the presence of abequose (3,6-dideoxy-D-xylo-hexose) in place of tyvelose only. (C) 2008 Elsevier Ltd. All rights reserved.
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