title: [Structure of an acylated exopolysaccharide synthesized by Acinetobacter sp].
abstract: The complex preparation ethapolan synthesized by Acinetobacter sp. consists of neutral (minor component) and two acidic exopolysaccharides (EPS) one of which is acylated. On the basis of chemical modification of EPS, solvolysis with anhydrous hydrogen fluoride resulting in a penta- and octasaccharide fragments, Smith degradation, 1H- and 13C NMR analysis the following structure of the acylated polysaccharide repeating unit has been established (scheme): It is suggested that in the acylated EPS at least one glucose residue and the galactose residue are O-acylated.
authors.affiliation: Zabolotny Institute of Microbiology and Virology, NAS of Ukraine, Kiyv. tapirog@yahoo.com
authors.forename: T P
authors.initials: TP
authors.lastname: Pyroh
authors.forename: S M
authors.initials: SM
authors.lastname: Senchenkova
authors.forename: T A
authors.initials: TA
authors.lastname: Hrinberh
authors.forename: Iu R
authors.initials: IuR
authors.lastname: Malashenko
mesh_terms: D000150:Acinetobacter / Q000378:metabolism*; D000215:Acylation; D002240:Carbohydrate Sequence; D008969:Molecular Sequence Data; D019906:Nuclear Magnetic Resonance, Biomolecular; D011134:Polysaccharides / Q000096:biosynthesis / Q000737:chemistry / Q000378:metabolism*
chemical_list: D011134:Polysaccharides