Cell Wall Glycopolymers of Type Strains from Three Species of the Genus Actinoplanesстатья

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Дата последнего поиска статьи во внешних источниках: 28 октября 2016 г.

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[1] Cell wall glycopolymers of type strains from three species of the genus actinoplanes / G. Streshinskaya, A. Sashkov, E. Tul’skaya et al. // Biochemistry (Moscow). — 2016. — Vol. 81, no. 9. — P. 999–1012. The structures of cell wall glycopolymers from the type strains of three Actinoplanes species were investigated using chemical methods, NMR spectroscopy, and mass spectrometry. Actinoplanes digitatis VKM Ac649T contains two phos phatecontaining glycopolymers: poly(diglycosyl1phosphate) →6)αDGlcpNAc(1P6)αDGlcpN(1→ and teichoic acid →1)snGro(3P3)β[βDGlcpNAc(1→2]DGalp(1→. Two glycopolymers were identified in A. auranticolor VKM Ac648T and A. cyaneus VKM Ac1095T: minor polymer – unsubstituted 2,3poly(glycerol phosphate), widely abundant in actinobacteria (Ac648T), and mannan with trisaccharide repeating unit →2)αDManp(1→2)αDManp(1→6)αDManp(1→(Ac1095T). In addition, both microorganisms contain a teichuronic acid of unique structure containing a pentasaccharide repeating unit with two residues of glucopyranose and three residues of diaminouronic acids in D-manno and/or D-glucoconfiguration. Each of the strains demonstrates peculiarities in the structure of teichuronic acid with respect to the ratio of diaminouronic acids and availability and location of Omethyl groups in glucopyranose residues. All investigated strains contain a unique set of glycopolymers in their cell walls with structures not described earlier for prokaryotes. [ DOI ]

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