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Structure of a new acidic O-antigen of Proteus vulgaris O22 containing O-acetylated 3-acetamido-3,6-dideoxy-D-glucose

Authors :
Alexander S. Shashkov
Sof'ya N. Senchenkova
Beata Bartodziejska
Yuriy A. Knirel
Filip V. Toukach
Antoni Rozalski
Marianna Wykrota
Source :
Carbohydrate research. 318(1-4)
Publication Year :
1999

Abstract

The acidic O-specific polysaccharide of Proteusvulgaris O22 was studied using 1H and 13C NMR spectroscopy, including 2D COSY, TOCSY, NOESY, and H-detected 1H,13C heteronuclear multiple-quantum coherence (HMQC) experiments, and the following structure for the branched pentasaccharide repeating unit was established: Download : Download full-size image where Qui3NAc is 3-acetamido-3,6-dideoxyglucose, O-acetylation of QuiNAc at position 4 is stoichiometric and at position 2 nonstoichiometric. Serological relationships of P. vulgaris O22 with some other Proteus strains were substantiated on the level of the O-antigen structures.

Details

ISSN :
00086215
Volume :
318
Issue :
1-4
Database :
OpenAIRE
Journal :
Carbohydrate research
Accession number :
edsair.doi.dedup.....1761b7928ce6a6cb22aca517162d203c