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. 1987 Apr;55(4):871–876. doi: 10.1128/iai.55.4.871-876.1987

Chemical composition and immunological characterization of polysaccharide antigen from Eubacterium saburreum T18.

F Nakazawa, T Ito, N Sato, M Sato, E Hoshino
PMCID: PMC260431  PMID: 2435659

Abstract

Two types of polysaccharide were obtained from the oral microorganism Eubacterium saburreum T18 by formamide extraction and subsequent gel filtration and ion-exchange chromatography. One polysaccharide, which was composed of D-glycero-D-galacto-heptose, had antigenic activity in an immunoprecipitation reaction with rabbit anti-T18 serum due to immunoglobulin M antibodies. The second polysaccharide was composed of D-glycero-D-manno-heptose and L-rhamnose, but it did not have immunoprecipitation activity. These polysaccharide antigens were not alkali labile and differed from E. saburreum L44 and T27 antigens, which were composed of D-glycero-D-galacto-heptose.

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Selected References

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