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1. (Article ID: 4055)
 
Komandrova NA, Gorshkova RP, Isakov VV, Tomshich SV, Shevchenko LS, Romanenko LA, Nedashkovskaia OI
Structure of teichoic acids from marine microorganisms Bacillus subtilis and Bacillus licheniformis
Bioorganic Chemistry 24(6) (1998) 446-448
 

Teichoic acids from the cell walls of marine bacilli Bacillus subtilis CMM (Collection of Marine Microorganisms) 234 (R-1) and B. licheniformis CMM 454 (1-1G-2) were isolated and characterized. These teichoic acids were found to have identical structures and are composed of the glucose, ribitol, and phosphoric acid residues. On the basis of 13C NMR and 31P NMR spectra of the teichoic acids and the products of their dephosphorylation, we established the following structure for the biopolymer: poly[→5)-4-O-β-D-glucopyranosylribitol-(1-phospho].

cell wall, teichoic acids, Bacillus subtilis, Bacillus licheniformis, biopolymer

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2. (Article ID: 4099)
 
Potekhina NV, Streshinskaia GM, Tul'skaya EM, Kozlova YI, Senchenkova SN, Shashkov AS
Phosphate-containing polymers of cell wall of bacilli
Biochemistry (Moscow) 76(7) (2011) 745-754
 

Anionic phosphate-containing cell wall polymers of bacilli are represented by teichoic acids and poly(glycosyl 1-phosphates). Different locations of phosphodiester bonds in the main chain of teichoic acids as well as the nature and combination of the constituent structural elements underlie their structural diversity. Currently, the structures of teichoic acids of bacilli can be classified into three types, viz. poly(polyol phosphates) with glycerol or ribitol as the polyol; poly(glycosylpolyol phosphates), mainly glycerol-containing polymers; and poly(acylglycosylglycerol phosphate), in which the components are covalently linked through glycosidic, phosphodiester, and amide bonds. In addition to teichoic acids, poly(glycosyl 1-phosphates) with mono- and disaccharide residues in the repeating units have been detected in cell walls of several Bacillus subtilis and Bacillus pumilus strains. The known structures of teichoic acids and poly(glycosyl 1-phosphates) of B. subtilis, B. atrophaeus, B. licheniformis, B. pumilus, B. stearothermophilus, B. coagulans, B. cereus as well as oligomers that link the polymers to peptidoglycan are surveyed. The reported data on the structures of phosphate-containing polymers of different strains of B. subtilis suggest heterogeneity of the species and may be of interest for the taxonomy of bacilli to allow differentiation of closely related organisms according to the 'structures and composition of cell wall polymers' criterion.

cell wall, teichoic acids, Bacillus, poly(glycosyl 1-phosphates)

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