title: Properdin--its biologic importance.
mesh_terms: D000936:Antigen-Antibody Complex; D003165:Complement System Proteins / Q000032:analysis; D005455:Fluorescent Antibody Technique; D005921:Glomerulonephritis / Q000276:immunology; D006801:Humans; D007136:Immunoglobulins / Q000032:analysis; D007674:Kidney Diseases / Q000276:immunology; D007678:Kidney Glomerulus / Q000276:immunology; D008180:Lupus Erythematosus, Systemic / Q000276:immunology; D011414:Properdin / Q000032:analysis
chemical_list: D000936:Antigen-Antibody Complex; D007136:Immunoglobulins; D011414:Properdin; D003165:Complement System Proteins