Smith degradation of the O-antigenic polysaccharide of Salmonella Dakar: structural studies of the products.
Two different oligosaccharides were obtained from the Smith degradation of the O-polysaccharide isolated from the lipopolysaccharide of Salmonella Dakar. The structures of these oligosaccharides were investigated by chemical analysis, NMR spectroscopy and MALDI-TOF mass spectrometry. The following structures of these products were determined: alpha-D-GalpNAc-(1-->4)-alpha-D-Quip3NAc-(1-->3)-alpha-L-Rhap-(1-->2)-threitol and [Formula: see text] where Quip3NAc is 3-acetamido-3,6-dideoxyglucose. The reaction products confirmed the structure of the repeating unit of the Salmonella Dakar O-polysaccharide reported previously [Kumirska, J.; Szafranek, J.; Czerwicka, M.; Paszkiewicz, M.; Dziadziuszko, H.; Kunikowska, D.; Stepnowski, P. Carbohydr. Res. 2007,342, 2138-2143].
Kumirska
Jolanta
J
Faculty of Chemistry, University of Gdańsk, Sobieskiego 18, 80-952 Gdańsk, Poland. kumirska@chem.univ.gda.pl
Szafranek
Janusz
J
Czerwicka
Małgorzata
M
Gołebiowski
Marek
M
Paszkiewicz
Monika
M
Dziadziuszko
Halina
H
Kunikowska
Danuta
D
Stepnowski
Piotr
P
D002240:Carbohydrate Sequence; D009682:Magnetic Resonance Spectroscopy; D008969:Molecular Sequence Data; D019081:O Antigens / Q000737:chemistry*; D012475:Salmonella / Q000737:chemistry*; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization
D019081:O Antigens