Structure of the O-polysaccharide of Escherichia coli O87

The following structure of the O-polysaccharide of Escherichia coli HS1/2 serving as a primary receptor for bacteriophage DT57-12 was elucidated by sugar analysis along with 1D and 2D 1H and 13C NMR spectroscopy: [Display omitted] This structure is shared by E. coli O87 type strain. Putatively assig...

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Bibliographic Details
Published in:Carbohydrate research 2015-08, Vol.412, p.15-18
Main Authors: Zdorovenko, Evelina L., Golomidova, Alla K., Prokhorov, Nikolai S., Shashkov, Alexander S., Wang, Lei, Letarov, Andrei V., Knirel, Yuriy A.
Format: Article
Language:English
Subjects:
Bacterial polysaccharide structure
Escherichia coli - chemistry
Escherichia coli - genetics
Escherichia coli O87
Lipopolysaccharide
Magnetic Resonance Imaging
O Antigens - chemistry
O-Antigen gene cluster
O-Specific polysaccharide
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Summary:The following structure of the O-polysaccharide of Escherichia coli HS1/2 serving as a primary receptor for bacteriophage DT57-12 was elucidated by sugar analysis along with 1D and 2D 1H and 13C NMR spectroscopy: [Display omitted] This structure is shared by E. coli O87 type strain. Putatively assigned functions of genes in the O-antigen gene cluster of E. coli O87 are consistent with the O-polysaccharide structure established. [Display omitted] •The O-specific polysaccharide was isolated from the lipopolysaccharide of Escherichia coli O87.•The structure of the tetrasaccharide repeat of the O-polysaccharide was established.•The structure is consistent with putatively assigned functions of the O-antigen biosynthesis genes.
ISSN:0008-6215
1873-426X
DOI:10.1016/j.carres.2015.04.014