D-rhamnan and teichuronic acid from the cell wall of Rathayibacter caricis VKM Ac-1799T.

D-rhamnan and teichuronic acid from the cell wall of Rathayibacter caricis VKM Ac-1799T. Carbohydr Res. 2021 Jan 08;499:108233 Authors: Shashkov AS, Potekhina NV, Tul'skaya EM, Dmitrenok AS, Senchenkova SN, Dorofeeva LV, Zaychikov VA, Evtushenko LI Abstract The cell wall of Rathayibacter caricis VKM Ac-1799T (family Microbacteriaceae, class Actinobacteria) was found to contain both neutral and acidic glycopolymers. The first one is D-rhamnopyranan with main chain →2)-α-D-Rhap-(1 → 3)-α-D-Rhap-(1→, where a part of 2-substituted residues bears as a side-chain at position 3 α-D-Manp residues or disaccharides α-D-Araf-(1→2)-α-D-Manp-(1 → . The second polymer is a teichuronic acid with a branched repeating units composed of seven monosaccharides →4)-α-[β-D-Manp-(1 → 3)]-D-Glcp-(1 → 4)-β-D-GlcpA-(1 → 2)-β-[4,6Pyr]-D-Manp-(1 → 4)-β-L-Rhap-(1 → 4)-β-D-Glcp-(1 → 4)-β-D-Glcp-(1 → . The structures of the polymers were determined by chemical and NMR spectroscopic methods. PMID: 33476839 [PubMed - as supplied by publisher]
Source: Carbohydrate Research - Category: Genetics & Stem Cells Authors: Tags: Carbohydr Res Source Type: research