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  • Title: Immunochemical studies on the O-antigens of Proteus mirabilis O23 and Proteus vulgaris O23.
    Author: Rózalski A, Perepelov AV, Bartodziejska B, Senchenkova SN, Babicka D, Kaca W, Knirel YA.
    Journal: Arch Immunol Ther Exp (Warsz); 2003; 51(1):69-74. PubMed ID: 12691306.
    Abstract:
    Analysis by 1H and 13C nuclear magnetic resonance (NMR) spectroscopy demonstrated that the O-specific polysaccharides of Proteus mirabilis PrK 42/57 and P. vulgaris PrK 43/57 are structurally similar to that of P. vulgaris PrK 44/57 and different from the polysaccharide of P. mirabilis PrK 41/57 studied earlier. The lipopolysaccharides of these strains were tested using enzyme immunosorbent assay, passive hemolysis and Western blot with O-antisera against P. mirabilis 42/57 and P. vulgaris 43/57 and 44/57, as well as with cross-absorbed O-antisera. The chemical and serological data revealed the basis for combining the four strains into Proteus serogroup O23 and division of this serogroup to three subgroups, one for P. vulgaris 43/57 and 44/57 and two others for P. mirabilis 41/57 and 42/57.
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