[Antigenic polysaccharides of bacteria. 25. Structure of the O-specific polysaccharide chain of Pseudomonas cepacia 673/2 lipopolysaccharide containing L-glycero-D-manno-heptose].
O-Specific polysaccharide, consisting of D-rhamnose and L-glycero-D-manno-heptose (LD-Hep) in a 2 : 1 ratio, was obtained on the mild acid degradation of the Pseudomonas cepacia IMV 673/2 lipopolysaccharide; monosaccharide LD-Hep has not previously been found in O-specific chains of lipopolysaccharides. On the basis of methylation and 13C-NMR data, it was concluded that the polysaccharide is composed of trisaccharide repeating units having the following structure: ----3)-alpha-D-Rha-(1----3)-alpha-D-Rha-(1----2)-alpha-LD-Hep-(1----
Knirel'
Iu A
IuA
Tanatar
N V
NV
Soldatkina
M A
MA
Shashkov
A S
AS
Zakharova
I Ia
IIa
D000942:Antigens, Bacterial / Q000032:analysis*; D002240:Carbohydrate Sequence; D008070:Lipopolysaccharides / Q000032:analysis* / Q000276:immunology; D009682:Magnetic Resonance Spectroscopy; D008356:Mannoheptulose / Q000032:analysis / Q000276:immunology; D019081:O Antigens; D011549:Pseudomonas / Q000276:immunology*; D014312:Trisaccharides / Q000032:analysis*
D000942:Antigens, Bacterial; D008070:Lipopolysaccharides; D019081:O Antigens; D014312:Trisaccharides; D008356:Mannoheptulose
Antigennye polisakharidy bakteriĭ. 25. Struktura O-spetsificheskoĭ polisakharidnoĭ tsepi lipopolisakharida Pseudomonas cepacia 673/2, soderzhashcheĭ L-glitsero-D-manno-geptozu.