title: Structure of the O-antigen of the lipopolysaccharide isolated from Pantoea ananatis AEP17, a rhizobacterium associated with rice.
abstract: The lipopolysaccharide of a Gram-negative bacterium having a putative plant-growth promoting activity (Pantoea ananatis AEP17) has been isolated and subjected to partial hydrolysis. The O-antigen has been studied by mass spectrometry and NMR experiments. On the basis of these experiments it is concluded that the following repeating unit is present in the polysaccharide: →3)-β-d-GlcpNAc-(1→3)[α-d-GalpAN-(1→2)]-α-l-Rhap-(1→2)-α-l-Rhap-(1→3)-α-l-Rhap-(1→2)-α-l-Rhap-(1→ The occurrence of d-galacturonamide (GalAN) is unusual in bacterial O-polysaccharides. It has only been reported in Escherichia coli O65 [Perry, M. B.; MacLean, L. L. Carbohydr. Res.1999, 322, 57-66].
authors: Departamento de Química Orgánica, Facultad de Química, Universidad de Sevilla, c/Profesor García González, 1, 41012 Sevilla, Spain.
authors: Rocío
authors: R
authors: Contreras Sánchez-Matamoros
authors: Antonio M
authors: AM
authors: Gil Serrano
authors: Pilar
authors: P
authors: Tejero-Mateo
authors: Javier
authors: J
authors: Ollero
authors: Esaú
authors: E
authors: Megías Saavedra
authors: Miguel A
authors: MA
authors: Rodríguez-Carvajal
mesh_terms: D002240:Carbohydrate Sequence; D008070:Lipopolysaccharides / Q000737:chemistry*; D019081:O Antigens / Q000737:chemistry*; D012275:Oryza / Q000382:microbiology*; D020636:Pantoea / Q000737:chemistry*; D012230:Rhizobiaceae / Q000737:chemistry
chemical_list: D008070:Lipopolysaccharides; D019081:O Antigens