Revision of the O-polysaccharide structure of Yersinia pseudotuberculosis O:1b.
The O-polysaccharide of Yersinia pseudotuberculosis O:1b was reinvestigated using (1)H and (13)C NMR spectroscopy, and the anomeric configuration of the mannose residue at the branching point was revised. The following is the revised structure of the O-polysaccharide: [structure: see the text] where Par stands for 3,6-dideoxy-D-ribo-hexose (paratose). The revised structure of the main chain is shared by the O-polysaccharide of Y. pseudotuberculosis O:11, which differs in the presence of a lateral alpha-L-6-deoxyaltrofuranose residue in place of the beta-paratofuranose residue [Cunneen, M. M.; de Castro, C.; Kenyon, J.; Parrilli, M.; Reeves, P. R.; Molinaro, A.; Holst, O.; Skurnik, M. Carbohydr. Res.2009, 344, 1533-1540].
N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia. annakond@gmail.com
Anna N
AN
Kondakova
Rima Z
RZ
Shaikhutdinova
Sergey A
SA
Ivanov
Svetlana V
SV
Dentovskaya
Alexander S
AS
Shashkov
Andrey P
AP
Anisimov
Yuriy A
YA
Knirel
D002240:Carbohydrate Sequence; D008969:Molecular Sequence Data; D019906:Nuclear Magnetic Resonance, Biomolecular; D019081:O Antigens / Q000737:chemistry* / Q000276:immunology; D015011:Yersinia pseudotuberculosis / Q000737:chemistry* / Q000276:immunology
D019081:O Antigens