The structure of the exocellular polysaccharide from the cyanobacterium Cyanospira capsulata.
The exocellular polysaccharide produced by the cyanobacterium Cyanospira capsulata has been subjected to partial acid hydrolysis and N-deacetylation-nitrous acid deamination. The oligosaccharides released have been isolated by weak anion exchange and aqueous size exclusion chromatography, and characterized by a combination of 1D and 2D nuclear magnetic resonance spectroscopy, mass spectrometry, sugar composition and linkage analyses. The polysaccharide has an octasaccharide repeating unit with the following structure: [formula: see text]
Garozzo
D
D
Istituto per la Chimica e la Tecnologia dei Materiali Polimerici, Consiglio Nazionale delle Ricerche, Catania, Italy.
Impallomeni
G
G
Spina
E
E
Sturiale
L
L
D002236:Carbohydrate Conformation; D002240:Carbohydrate Sequence; D002852:Chromatography, Ion Exchange; D000458:Cyanobacteria / Q000737:chemistry* / Q000276:immunology; D008401:Gas Chromatography-Mass Spectrometry; D008969:Molecular Sequence Data; D019906:Nuclear Magnetic Resonance, Biomolecular; D009844:Oligosaccharides / Q000737:chemistry* / Q000302:isolation & purification; D011135:Polysaccharides, Bacterial / Q000737:chemistry*
D009844:Oligosaccharides; D011135:Polysaccharides, Bacterial