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1. (Article ID: 4605)
 
Potekhina NV, Shashkov AS, Streshinskaia GM, Tul'skaya EM, Senchenkova SN, Kudryashova EB, Dmitrenok AS
Disaccharide 1-phosphate polymers of some representatives of the Bacillus subtilis group
Biochemistry (Moscow) 78(10) (2013) 1146-1154
 

Disaccharide 1-phosphate polymers as well as teichoic acids of various structures have been found in the cell walls of the representatives of the Bacillus subtilis group, namely Bacillus subtilis subsp. spizizenii VKM B-720 and VKM B-916, B. subtilis VKM B-517, and Bacillus vallismortis VKM B-2653(T). Disaccharide 1-phosphate polymers are composed of repeating units of the following structure: -P-4)-β-D-GlcpNAc-(1→6)-α-D-Galp-(1-, the N-acetylglucosamine residues are partially acetylated at positions O3 and O6 (VKM B-720 and VKM B-916); -P-4)-β-D-Glcp-(1→6)-α-D-GlcpNAc-(1-, the glucopyranose residues are partially acetylated at positions O2 or O3 (VKM B-517); -P-6)-α-D-GlcpNH3(+)/α-D-GlcpNAc-(1→2)-α-D-Glcp-(1-, the N-acetylglucosamine residues are partially deacetylated (VKM B-2653(T)). The structures of the two last disaccharide 1-phosphate polymers have not been reported so far for Gram-positive bacteria. The teichoic acids in the studied strains are O-D-alanyl-1,5-poly(ribitol phosphates) substituted with β-D-glucopyranose (VKM B-517, VKM B-720, VKM B-916) or 2-acetamido-2-deoxy-β-D-glucopyranose (VKM B-2653(T)). The structures of the phosphate-containing polymers have been studied by chemical methods and by NMR spectroscopy.

NMR spectroscopy, teichoic acids, Bacillus subtilis, glycosyl 1-phosphate polymers, Bacillus subtilis subsp. spizizenii, Bacillus vallismortis

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