[Experimental and theoretical conformation analysis of the O-antigenic polysaccharide from Pseudomonas cepacia strain 3181. II. The polysaccharide].
The spatial structure of Pseudomonas cepacia 3181 polysaccharide in aqueous solution is discussed basing on the data of nuclear Overhauser effect, observed with preirradiation of anomeric protons of all 3 D-rhamnose residues in the repeat unit, and theoretical conformational analysis. It is shown that conformational states of the free disaccharides and corresponding disaccharide units of the polysaccharide are similar. All conformations of the polysaccharide may be described by one shape representing an extended structure with characteristic turns in the D-Rha alpha 1-2-D-Rha beta 1-3-D-Rha units.
D000942:Antigens, Bacterial / Q000032:analysis*; D002236:Carbohydrate Conformation; D002240:Carbohydrate Sequence; D008070:Lipopolysaccharides / Q000032:analysis*; D009682:Magnetic Resonance Spectroscopy; D008962:Models, Theoretical; D019081:O Antigens; D011549:Pseudomonas / Q000276:immunology*
D000942:Antigens, Bacterial; D008070:Lipopolysaccharides; D019081:O Antigens
Eksperimental'nyĭ i teoreticheskiĭ konformatsionnyĭ analiz O-antigennogo polisakharida Pseudomonas cepacia shtamma 3181. II. Polisakharid.