The cell wall of Streptococcus faecalis, strain N, has been found to contain two antigenic glycans, a diheteroglycan of glucose and galactose and a tetraheteroglycan of rhamnose, glucose, galactose, and N-acetylgalactosamine. The present report describes the isolation, purification, and structural and immunochemical characterization of the hitherto unknown diheteroglycan. A tentative structure ...
