Structure of the disaccharide repeating unit of O-specific polysaccharide isolated from Aeromonas veronii strain Bs8 pathogenic to common carp (Cyprinus carpio).

Structure of the disaccharide repeating unit of O-specific polysaccharide isolated from Aeromonas veronii strain Bs8 pathogenic to common carp (Cyprinus carpio). Carbohydr Res. 2020 Nov 25;:108210 Authors: Dworaczek K, Kurzylewska M, Laban M, Pękala-Safińska A, Marczak M, Turska-Szewczuk A Abstract The O-specific polysaccharide (OPS) was isolated from the lipopolysaccharide of Aeromonas veronii strain Bs8, which is pathogenic to common carp (Cyprinus carpio), after mild acid hydrolysis followed by gel-permeation chromatography. The high-molecular-mass OPS fraction was investigated using chemical methods, mass spectrometry, and 1H and 13C NMR spectroscopy techniques, including 2D homonuclear 1H,1H TOCSY, DQF COSY, NOESY, and heteronuclear 1H-detected 1H,13C HSQC, and HMBC experiments. The analysis revealed that the O-specific polysaccharide contains sugars with the galacto configuration of the ring and is composed of a disaccharide repeating unit with the following structure. PMID: 33298315 [PubMed - as supplied by publisher]
Source: Carbohydrate Research - Category: Genetics & Stem Cells Authors: Tags: Carbohydr Res Source Type: research