Structural studies of the O-antigenic polysaccharide from an Aeromonas caviae strain.
The structure of the O-antigenic polysaccharide from a strain of Aeromonas caviae, isolated from the stools of a patient with diarrhoea, has been investigated. Sugar analysis, methylation analyses, and a uronic acid degradation together with NMR spectroscopy were the principal methods used. The sequence of the sugar residues could be determined by NOESY and HMBC experiments. It is concluded that the polysaccharide is composed of pentasaccharide repeating units with the following structure: [sequence: see text]
Linnerborg
M
M
Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, Sweden.
Widmalm
G
G
Rahman
M M
MM
Jansson
P E
PE
Holme
T
T
Qadri
F
F
Albert
M J
MJ
D000333:Aeromonas / Q000737:chemistry* / Q000276:immunology; D002236:Carbohydrate Conformation; D002240:Carbohydrate Sequence; D002473:Cell Wall / Q000276:immunology; D002850:Chromatography, Gel; D002852:Chromatography, Ion Exchange; D009682:Magnetic Resonance Spectroscopy; D008745:Methylation; D008969:Molecular Sequence Data; D009005:Monosaccharides / Q000032:analysis; D019081:O Antigens / Q000737:chemistry* / Q000302:isolation & purification; D009844:Oligosaccharides / Q000032:analysis
D009005:Monosaccharides; D019081:O Antigens; D009844:Oligosaccharides