Structural determination of the O-specific chain of the lipopolysaccharide from the mushrooms pathogenic bacterium Pseudomonas tolaasii.
The complete structure of the O-specific polysaccharide of the lipopolysaccharide isolated from the cultivated mushrooms pathogen Pseudomonas tolaasii is described. The structural determination, achieved by chemical and spectroscopical analyses, indicates a novel tetrasaccharide repeating unit built up of two units of 2-acetamido-2,6-di-deoxy-glucopyranose (Quinovosamine, QuipNAc) and two units of 2-acetamido-2-deoxy-gulopyranuronamide (GulpNAcAN), one of which is acetylated at C-3 position:
Molinaro
Antonio
A
Dipartimento di Chimica Organica e Biochimica, Università di Napoli Federico II, Complesso Universitario Monte Sant' Angelo, Via Cintia 4, 80126, Napoli, Italy. molinaro@unina.it
Bedini
Emiliano
E
Ferrara
Renata
R
Lanzetta
Rosa
R
Parrilli
Michelangelo
M
Evidente
Antonio
A
Lo Cantore
Pietro
P
Iacobellis
Nicola Sante
NS
D000363:Agaricales; D008070:Lipopolysaccharides / Q000737:chemistry* / Q000302:isolation & purification; D019906:Nuclear Magnetic Resonance, Biomolecular / Q000379:methods; D019081:O Antigens / Q000737:chemistry* / Q000302:isolation & purification; D011549:Pseudomonas / Q000737:chemistry*
D008070:Lipopolysaccharides; D019081:O Antigens