title: Structure of the O-polysaccharide of the lipopolysaccharide of Azospirillum irakense KBC1.
abstract: The O-polysaccharide was isolated from the lipopolysaccharide of the plant-growth-promoting bacterium Azospirillum irakense KBC1 and studied by sugar and methylation analyses, Smith degradation and 1H and 13C NMR spectroscopy, including 1H, 13C HSQC and NOESY experiments for linkage and sequence analysis. The following structure of the branched hexasaccharide repeating unit of the O-polysaccharide with an unusually long side chain was established: [carbohydrate structure: see text].
authors.affiliation: Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, Prospekt Entuziastov 13, 410049 Saratov, Russia.
authors.forename: Yuliya P
authors.initials: YP
authors.lastname: Fedonenko
authors.forename: Olga N
authors.initials: ON
authors.lastname: Konnova
authors.forename: George V
authors.initials: GV
authors.lastname: Zatonsky
authors.forename: Alexander S
authors.initials: AS
authors.lastname: Shashkov
authors.forename: Svetlana A
authors.initials: SA
authors.lastname: Konnova
authors.forename: Evelina L
authors.initials: EL
authors.lastname: Zdorovenko
authors.forename: Vladimir V
authors.initials: VV
authors.lastname: Ignatov
authors.forename: Yuriy A
authors.initials: YA
authors.lastname: Knirel
mesh_terms: D000941:Antigens / Q000737:chemistry; D016949:Azospirillum / Q000737:chemistry*; D002236:Carbohydrate Conformation; D002240:Carbohydrate Sequence; D002241:Carbohydrates / Q000737:chemistry; D006859:Hydrogen; D008070:Lipopolysaccharides / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D008745:Methylation; D008956:Models, Chemical; D008969:Molecular Sequence Data; D019081:O Antigens / Q000737:chemistry; D011134:Polysaccharides / Q000737:chemistry
chemical_list: D000941:Antigens; D002241:Carbohydrates; D008070:Lipopolysaccharides; D019081:O Antigens; D011134:Polysaccharides; D006859:Hydrogen