Glycans from streptococcal cell walls. The molecular structure of an antigenic diheteroglycan of glucose and galactose from Streptococcus faecalis.

Glycans from Streptococcal Cell Walls

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 ...

Glycans from streptococcal cell walls: structural features of a diheteroglycan isolated from the cell wall of Streptococcus bovis.

Filamentous capsulated streptococci from the human respiratory tract. I. Antigenic attributes of provisional capsular type 83 and its relationship to streptococci of so-called group M.

Two immunologically reactive polysaccharides have been isolated from the cell walls and from culture filtrates of a filamentous alpha-hemolytic streptococcus provisionally designated capsular type 83. Both polysaccharides were purified by diethylaminoethyl-cellulose chromatography. Analysis indicates that the capsular polysaccharide consists of galactose and phosphorus, whereas the cell wall po...

beta-D-Glucose 1-phosphate. A structural unit and an immunological determinant of a glycan from streptococcal cell walls.

Glycose 1-phosphate moieties are emerging as important structural units of macromolecular substances imparting special biological functions to these molecules. In the present study, beta-D-glucose 1-phosphate moieties are shown to be structural units and immunological determinants of a bacterial glycan. The glycan is a tetraheteroglycan from the cell wall of Streptococcus faecalis, strain N and...

The Cell Walls of Group D Streptococci

Group D Types 1 and 26 cell walls and the corresponding type-specific carbohydrates, extracted from the walls by various means, contain rhamnose, glucose, galactose, N-acetylglucosamine, and N-acetylgalactosamine. Mucopeptide elements are also present in the walls and in enzymatically-extracted carbohydrates. Types 1 and 26 carbohydrates extracted by formamide contain no mucopeptide, but the se...