title: A molecular approach to the complement system.
mesh_terms: D000818:Animals; D000937:Antigen-Antibody Reactions; D001665:Binding Sites; D002462:Cell Membrane / Q000276:immunology; D055598:Chemical Phenomena; D002621:Chemistry; D003094:Collagen / Q000378:metabolism; D003166:Complement Activating Enzymes / Q000378:metabolism; D003172:Complement C1; D003175:Complement C2; D003176:Complement C3; D003181:Complement C4; D003169:Complement Inactivator Proteins / Q000502:physiology; D003165:Complement System Proteins / Q000502:physiology*; D006461:Hemolysis; D006801:Humans; D007136:Immunoglobulins; D010447:Peptide Hydrolases / Q000378:metabolism; D011487:Protein Conformation; D013329:Structure-Activity Relationship
chemical_list: D003172:Complement C1; D003175:Complement C2; D003176:Complement C3; D003181:Complement C4; D003169:Complement Inactivator Proteins; D007136:Immunoglobulins; D003094:Collagen; D003165:Complement System Proteins; D003166:Complement Activating Enzymes; D010447:Peptide Hydrolases