title: Electron microscopic studies on streptococci. II. Group A carbohydrate.
abstract: The location of Group A carbohydrate in the streptococcal cell wall has been studied by several ultrastructural techniques. The findings, based largely on use of ferritin- and horseradish peroxidase-conjugated antibodies, are interpreted as demonstrating a discrete laminar distribution of the group-specific polysaccharide. This carbohydrate layer is located on the outermost surface of the cell wall in organisms lacking protein cell wall antigens.
mesh_terms: D000818:Animals; D000907:Antibodies, Bacterial; D000942:Antigens, Bacterial / Q000032:analysis; D002473:Cell Wall / Q000032:analysis; D005293:Ferritins; D005559:Formamides; D006851:Hydrochloric Acid; D006863:Hydrogen-Ion Concentration; D007106:Immune Sera; D008854:Microscopy, Electron; D010544:Peroxidases; D011135:Polysaccharides, Bacterial / Q000032:analysis* / Q000302:isolation & purification; D011817:Rabbits / Q000276:immunology; D013297:Streptococcus pyogenes / Q000032:analysis / Q000166:cytology / Q000276:immunology*
chemical_list: D000907:Antibodies, Bacterial; D000942:Antigens, Bacterial; D005559:Formamides; D007106:Immune Sera; D011135:Polysaccharides, Bacterial; D005293:Ferritins; D010544:Peroxidases; D006851:Hydrochloric Acid