The cell wall glycopolymers of three strains of Streptomyces albus and the type strain of Streptomyces pathocidini were investigated. The structures of the glycopolymers were established using a combination of chemical and NMR spectroscopic methods. The cell wall of S. albus subsp. albus VKM Ac-35(T) was found to be comprised of three glycopolymers, viz. unsubstituted 1,5-poly(ribitol phosphate), 1,3-poly(glycerol phosphate) substituted with β-D-glucopyranose, and the major polymer, a 3-deoxy-D-glycero-D-galacto-non-2-ulosonic acid (Kdn)-teichulosonic acid: β-D-Glcp-(1→8)-α-Kdnp-(2[(→6)-β-D-Glcp-(1→8)-α-Kdnp-(2→]n 6)-β-D-Glcp-(1→8)-β-Kdnp-(2-OH, where n >/= 3. The cell walls of 'S. albus' J1074 and 'S. albus' R1-100 were found to contain three glycopolymers of identical structures, viz. unsubstituted 1,3- and 2,3-poly(glycerol phosphates), and the major polymer, a Kdn-teichulosonic acid with an unusual structure that has not been previously described: β-D-Galp-(1→9)-α-Kdnp-(2[(→3)-β-D-Galp-(1→9)-α-Kdnp-(2→]n 3)-β-D-Galp-(1→9)-β-Kdnp-(2-OH, where n ~ 7-8. The cell wall of S. pathocidini (formerly S. albus subsp. pathocidicus) VKM Ac-598(T) was found to contain two glycopolymers, viz. 1,3-poly(glycerol phosphate) partially O-glycosylated with 2-acetamido-2-deoxy-α-D-glucopyranose and/or O-acylated with L-lysine, and a poly(diglycosyl 1-phosphate) of hitherto unknown structure: -6)-α-D-Glcp-(1→6)-α-D-GlcpNAc-(1-P-.
cell wall, teichoic acid, Streptomyces, teichulosonic acid, NMR-spectroscopy, Poly(glycosyl 1-phosphate)
NCBI PubMed ID: 27055525Publication DOI: 10.1007/s10482-016-0691-8Journal NLM ID: 0372625Publisher: Dordrecht: Kluwer Academic
Correspondence: streshinskaya@mail.ru
Institutions: All-Russian Collection of Microorganisms (VKM), G. K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences, Pushchino, Russia, ND Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect, 47, Moscow, Russia, 119991, School of Biology MV, Lomonosov Moscow State University, Vorob'evy gory 1 Stroenie 12, Moscow, Russia, 119991, Department of Genetics and Biotechnology, Ivan Franko National University of Lviv, Lviv, 79005, Ukraine
Methods: 13C NMR, 1H NMR, NMR-2D, sugar analysis, dephosphorylation, 31P NMR, acid hydrolysis, GLC, paper chromatography, NMR-1D, alkaline hydrolysis, paper electrophoresis