title: [Structures of O-polysaccharides from two Shigella dysenteriae type 8 strains].
abstract: The structure of the O-polysaccharide (O-antigen) from Shigella dysenteriae type 8 bacteria (strain 599) was corrected using modern NMR techniques (structure 1). The revisions concerned the position of the Glc residue (in the main, but not the side, chain), the site of its substitution, and the configuration of the O-glycoside linkage of the GlcNAc residue. The S. dysenteriae type 8 bacterium (strain G1221), the second investigated representative, was found to produce another structural variant of the O-polysaccharide. It contains GlcNAc instead of the Glc residue in the main chain (structure 2). This data may lead to approval of division of S. dysenteriae type 8 into two subtypes: [Formula: see text].
authors.affiliation: Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninskii pr. 47, Moscow, 119991 Russia. perepel@ioc.ac.ru
authors.forename: A V
authors.initials: AV
authors.lastname: Perepelov
authors.forename: S N
authors.initials: SN
authors.lastname: Senchenkova
authors.forename: A S
authors.initials: AS
authors.lastname: Shashkov
authors.forename: Iu A
authors.initials: IuA
authors.lastname: Knirel'
authors.forename: B
authors.initials: B
authors.lastname: Lu
authors.forename: L
authors.initials: L
authors.lastname: Feng
authors.forename: L
authors.initials: L
authors.lastname: Wang
mesh_terms: D002240:Carbohydrate Sequence; D011135:Polysaccharides, Bacterial / Q000737:chemistry*; D012762:Shigella dysenteriae / Q000737:chemistry*; D013045:Species Specificity
chemical_list: D011135:Polysaccharides, Bacterial