title: Structure of the O-specific polysaccharide of a serologically separate Proteus penneri strain 22.
abstract: The O-specific polysaccharide chain (O-antigen) of Proteus penneri strain 22 lipopolysaccharide was studied using chemical methods, including partial acid hydrolysis and Smith degradation, as well as one- and two-dimensional 1H and 13C NMR spectroscopy. The following structure of the pentasaccharide repeating unit was established: [sequence: see text] The O-specific polysaccharide contains a GalNAc residue in the furanose form which has not been hitherto found in bacterial polysaccharides. The O-antigen studied is serologically and structurally unique among Proteus strains and, therefore, a new Proteus serogroup O63 is proposed for P. penneri strain 22.
authors.affiliation: N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russian Federation.
authors.forename: N P
authors.initials: NP
authors.lastname: Arbatsky
authors.forename: A S
authors.initials: AS
authors.lastname: Shashkov
authors.forename: S S
authors.initials: SS
authors.lastname: Mamyan
authors.forename: Y A
authors.initials: YA
authors.lastname: Knirel
authors.forename: K
authors.initials: K
authors.lastname: Zych
authors.forename: Z
authors.initials: Z
authors.lastname: Sidorczyk
mesh_terms: D002236:Carbohydrate Conformation; D002240:Carbohydrate Sequence; D008969:Molecular Sequence Data; D019906:Nuclear Magnetic Resonance, Biomolecular; D019081:O Antigens / Q000737:chemistry* / Q000302:isolation & purification; D009844:Oligosaccharides / Q000737:chemistry*; D011511:Proteus / Q000737:chemistry* / Q000145:classification / Q000276:immunology; D012703:Serotyping
chemical_list: D019081:O Antigens; D009844:Oligosaccharides