title: The O-chain polysaccharide of the lipopolysaccharide of Xanthomonas campestris pv. begoniae GSPB 525 is a partially L-xylosylated L-rhamnan.
abstract: The O-chain polysaccharide (OPS) of the lipopolysaccharide of Xanthomonas campestris pv. begoniae GSPB 525 was found to contain L-rhamnose and L-xylose in the ratio 1:0.6. The OPS lacked strict regularity because of nonstoichiometric xylosylation of the main rhamnan chain. Based on methylation analysis, Smith degradation, and 1H and 13C NMR spectroscopy, including COSY, TOCSY, NOESY, and H-detected 1H,13C heteronuclear multiple-quantum coherence (HMQC) experiments, the following structure of the OPS was established: [formula: see text].
authors.affiliation: N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia.
authors.forename: S N
authors.initials: SN
authors.lastname: Senchenkova
authors.forename: A S
authors.initials: AS
authors.lastname: Shashkov
authors.forename: P
authors.initials: P
authors.lastname: Laux
authors.forename: Y A
authors.initials: YA
authors.lastname: Knirel
authors.forename: K
authors.initials: K
authors.lastname: Rudolph
mesh_terms: D002240:Carbohydrate Sequence; D003837:Deoxy Sugars / Q000737:chemistry*; D008070:Lipopolysaccharides / Q000276:immunology*; D009682:Magnetic Resonance Spectroscopy; D008351:Mannans / Q000737:chemistry*; D008969:Molecular Sequence Data; D019081:O Antigens / Q000737:chemistry*; D016959:Xanthomonas campestris / Q000276:immunology*; D014994:Xylose / Q000737:chemistry*
chemical_list: D003837:Deoxy Sugars; D008070:Lipopolysaccharides; D008351:Mannans; D019081:O Antigens; C065836:rhamnan; D014994:Xylose