5,7-Diamino-5,7,9-trideoxynon-2-ulosonic acid: a novel sugar from a phytopathogenic Pseudomonas lipopolysaccharide.
Preliminary results on the structure of a novel sugar from a lipopolysaccharide from Pseudomonas corrugata, a plant pathogenic bacterium whose several aspects of phytopathogenic mechanism are under investigation, are described. This is a 5,7-diamino-5,7,9-trideoxynon-2-ulosonic acid, isolated as an O-glycoside from the Smith degradation of the O-chain. The structure was obtained both with NMR and MS methodologies. To the best of our knowledge, this is the first example of 3-hydroxylated non-2-ulosonic acid.
Corsaro
Maria Michela
MM
Dipartimento di Chimica Organica e Biochimica, Università Federico II, Complesso Universitario Monte S. Angelo, Via Cintia, 4, I-80126, Naples, Italy. corsaro@unina.it
Evidente
Antonio
A
Lanzetta
Rosa
R
Lavermicocca
Paola
P
Parrilli
Michelangelo
M
Ummarino
Salvatore
S
D008070:Lipopolysaccharides / Q000737:chemistry* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D008958:Models, Molecular; D015394:Molecular Structure; D010935:Plant Diseases / Q000382:microbiology*; D011549:Pseudomonas / Q000737:chemistry*; D013400:Sugar Acids / Q000737:chemistry* / Q000302:isolation & purification*
C468553:5,7-diamino-5,7,9-trideoxynon-2-ulosonic acid; D008070:Lipopolysaccharides; D013400:Sugar Acids