title: The structure of the O-polysaccharide of the Pseudoalteromonas rubra ATCC 29570T lipopolysaccharide containing a keto sugar.
abstract: The structure of the phenol-soluble polysaccharide from Pseudoalteromonas rubra type strain ATCC 29570T has been elucidated using 1H and 13C NMR spectroscopy, including 2D COSY, TOCSY, gNOESY, ROESY, 1H,13C gHMQC and gHMBC experiments. It is concluded that the trisaccharide repeating unit of the polysaccharide has the following structure: [carbohydrate structure: see text] where Sug is 2-acetamido-2,6-dideoxy-D-xylo-hexos-4-ulose, Am is acetimidoyl and Acyl is a malic acid residue, which is O-acetylated in approximately 70% of the units.
authors.affiliation: Department of Chemistry, National University of Ireland, Galway, Ireland.
authors.forename: Michelle
authors.initials: M
authors.lastname: Kilcoyne
authors.forename: Alexander S
authors.initials: AS
authors.lastname: Shashkov
authors.forename: Yuriy A
authors.initials: YA
authors.lastname: Knirel
authors.forename: Raisa P
authors.initials: RP
authors.lastname: Gorshkova
authors.forename: Evgeny L
authors.initials: EL
authors.lastname: Nazarenko
authors.forename: Elena P
authors.initials: EP
authors.lastname: Ivanova
authors.forename: Natalya M
authors.initials: NM
authors.lastname: Gorshkova
authors.forename: Sof'ya N
authors.initials: SN
authors.lastname: Senchenkova
authors.forename: Angela V
authors.initials: AV
authors.lastname: Savage
mesh_terms: D002240:Carbohydrate Sequence; D002247:Carbon Isotopes; D006859:Hydrogen; D008969:Molecular Sequence Data; D019906:Nuclear Magnetic Resonance, Biomolecular; D019081:O Antigens / Q000737:chemistry*; D031161:Pseudoalteromonas / Q000737:chemistry*
chemical_list: D002247:Carbon Isotopes; D019081:O Antigens; D006859:Hydrogen