title: Biologic function of the serum IgA system: modulation of complement-mediated effector mechanisms and conservation of antigenic mass.
mesh_terms: D000942:Antigens, Bacterial / Q000276:immunology*; D001667:Binding, Competitive; D001770:Blood Bactericidal Activity; D003165:Complement System Proteins / Q000378:metabolism*; D006801:Humans; D007070:Immunoglobulin A / Q000378:metabolism / Q000502:physiology*; D007074:Immunoglobulin G / Q000502:physiology; D007075:Immunoglobulin M / Q000502:physiology; D008264:Macrophages / Q000276:immunology; D008585:Meningitis, Meningococcal / Q000276:immunology*; D009000:Monocytes / Q000276:immunology; D009297:Nasal Mucosa / Q000276:immunology
chemical_list: D000942:Antigens, Bacterial; D007070:Immunoglobulin A; D007074:Immunoglobulin G; D007075:Immunoglobulin M; D003165:Complement System Proteins