title: Role of the Fc fragment in the regulation of the primary immune response.
mesh_terms: D000818:Animals; D000906:Antibodies / Q000032:analysis / Q000502:physiology*; D000917:Antibody Formation; D002499:Centrifugation, Density Gradient; D004912:Erythrocytes / Q000276:immunology; D006460:Hemolysin Proteins / Q000096:biosynthesis; D007074:Immunoglobulin G / Q000032:analysis / Q000502:physiology*; D051379:Mice; D010434:Pepsin A; D010455:Peptides / Q000032:analysis / Q000502:physiology*; D012756:Sheep
chemical_list: D000906:Antibodies; D006460:Hemolysin Proteins; D007074:Immunoglobulin G; D010455:Peptides; D010434:Pepsin A