Structural and serological studies on a new acidic O-specific polysaccharide of Proteus vulgaris O32.
The following structure of the O-specific polysaccharide chain (O-antigen) of the Proteus vulgaris 032 lipopolysaccharide (LPS) was established by 1H-NMR and 13C-NMR spectroscopy, including two-dimensional NOESY and H-detected 1H,13C heteronuclear multiple-quantum coherence (HMQC) experiments: -->2)-alpha-L-RhapI-(1-->2)-alpha-L-RhapII-(1-->4)-beta-D-++ +GalpA(I)-(1-->3)-beta-D-GlcpNAc-(1-->4)-alpha-D-GalpA(II)-(1-- >. In addition, an O-acetyl group was detected, which, most probably, is located at position 3 of a part of RhapI residues. Serological studies, using rabbit polyclonal anti-(P. vulgaris 032) serum, homologous and heterologous Proteus O-antigens and related artificial antigens, revealed the importance of an a-D-GalA-associated epitope in manifesting the immunospecificity of P. vulgaris 032 and substantiated serological relationships between the O-antigen studied and those of some other Proteus strains.
Bartodziejska
B
B
Institute of Microbiology and Immunology, University of Lodz, Poland.
Shashkov
A S
AS
Babicka
D
D
Grachev
A A
AA
Torzewska
A
A
Paramonov
N A
NA
Chernyak
A Y
AY
Rozalski
A
A
Knirel
Y A
YA
D002236:Carbohydrate Conformation; D002240:Carbohydrate Sequence; D004912:Erythrocytes / Q000276:immunology; D006461:Hemolysis / Q000276:immunology; D007106:Immune Sera / Q000276:immunology; D008070:Lipopolysaccharides / Q000737:chemistry / Q000276:immunology; D009682:Magnetic Resonance Spectroscopy; D008969:Molecular Sequence Data; D019081:O Antigens / Q000737:chemistry* / Q000276:immunology; D009844:Oligosaccharides / Q000737:chemistry / Q000276:immunology; D011135:Polysaccharides, Bacterial / Q000737:chemistry* / Q000276:immunology; D011514:Proteus vulgaris / Q000276:immunology*; D012699:Serology
D007106:Immune Sera; D008070:Lipopolysaccharides; D019081:O Antigens; D009844:Oligosaccharides; D011135:Polysaccharides, Bacterial