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  • Title: Occurrence of D-rhamnan as the common antigen reactive against monoclonal antibody E87 in Pseudomonas aeruginosa IFO 3080 and other strains.
    Author: Yokota S, Kaya S, Araki Y, Ito E, Kawamura T, Sawada S.
    Journal: J Bacteriol; 1990 Oct; 172(10):6162-4. PubMed ID: 2120200.
    Abstract:
    S. Sawada and co-workers reported that a monoclonal antibody (MAb), E87, interacted with about 80% of Pseudomonas aeruginosa isolates, and they separated a rhamnose-rich polysaccharide as the probable antigen for MAb E87 from P. aeruginosa IFO 3080 (S. Sawada, T. Kawamura, Y. Masuho, and K. Tomibe, J. Infec. Dis. 152:1290-1299, 1985). In the present study, the rhamnose-rich polysaccharide was shown to be structurally and immunologically identical to the D-rhamnan of P. aeruginosa IID 1008 (S. Yokota, S. Kaya, S. Sawada, T. Kawamura, Y. Araki, and E. Ito, Eur. J. Biochem. 167:203-209, 1987). Furthermore, a set of enzymes responsible for the formation of GDP-rhamnose (probably in a D-form) from GDP-D-mannose was found in the 100,000 x g supernatant fractions obtained from all of nine P. aeruginosa strains reactive against MAb E87. The result strongly supports a possibility that lipopolysaccharides having a D-rhamnan chain widely occur as the common antigen among various P. aeruginosa isolates.
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