Structure and gene cluster of the O-antigen of Escherichia coli O41

Hongfei Zhu,Andrei V Perepelov,Sof’Ya N Senchenkova,Alexander S Shashkov,Lei Wang,Yuriy A Knirel

doi:10.1016/j.carres.2011.12.009

Structure and gene cluster of the O-antigen of Escherichia coli O41

Hongfei Zhu, Andrei V Perepelov + Show 4 more

https://doi.org/10.1016/j.carres.2011.12.009

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Journal: Carbohydrate research	Publication Date: Dec 17, 2011
Citations: 4

Affiliation: Nankai University, N.D. Zelinsky Institute of Organic Chemistry

#Structures Of Bacterial Polysaccharides #1D 1H NMR Spectroscopy + Show 8 more

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Abstract

The acidic O-polysaccharide (O-antigen) of Escherichia coli O41 was studied by sugar analysis along with 1D and 2D 1H and 13C NMR spectroscopy, and the following structure of the branched hexasaccharide repeating unit was established:▪This structure is unique among the known structures of bacterial polysaccharides. The O-antigen gene cluster of E. coli O41 was sequenced. The gene functions were tentatively assigned by a comparison with sequences in the available databases and found to be in full agreement with the E. coli O41 O-polysaccharide structure.

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