Carbohydrate-Containing Cell Wall Polymers of Some Strains of the Bacillus subtilis Groupстатья
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Дата последнего поиска статьи во внешних источниках: 27 ноября 2016 г.
Аннотация:Abstract—A comparative study of the structures of carbohydratecontaining cell wall polymers isolated from the strains of the Bacillus subtilis group was performed by means of chemical and NMR spectroscopic methods. Polymers of different structure were revealed, namely, 1,3poly(glycerol phosphates) with β-glucopyranose in Bacillus subtilis strains VKM B520, VKM B723, and VKM B763 (= VKM B911); 1,5poly(ribitolphosphate) with αglucopyranose in B.subtilis strains VKM B722 and VKM B922 (the structure is reported for the first time); and simultaneously two polymers in B. subtilis VKM B761, 1,5poly(ribitol phosphate)with β-glucopyranose and the disaccharide 1-phosphate polymer with the following repeating unit: alpha-6)-DGalp-(1-P-4)-β-D-GlcpNAc-(1-, in which the hydroxyls at C3 and C6 of glucosamine residues are partially Oacetylated (the structure is reported for the first time). Heterogeneity of the B. subtilis group is confirmed by variations in the structure and composition of the cell wall polymers. The cell surface polymers are useful for discrimination of closely related bacilli strains and are cell wall marker components that may be an indispensable element of the Bacillus subtilis group taxonomy along with the genomosystematic methods.