title: Complement ligand-receptor interactions that mediate biological responses.
mesh_terms: D000818:Animals; D002462:Cell Membrane / Q000276:immunology; D003166:Complement Activating Enzymes / Q000276:immunology; D003167:Complement Activation; D015922:Complement C1q; D003176:Complement C3 / Q000276:immunology; D015926:Complement C3a; D003181:Complement C4 / Q000276:immunology; D015934:Complement C4a; D003182:Complement C5 / Q000276:immunology; D015936:Complement C5a; D003165:Complement System Proteins / Q000276:immunology*; D006801:Humans; D016177:Macrophage-1 Antigen; D011951:Receptors, Complement / Q000276:immunology*; D017463:Receptors, Complement 3b
chemical_list: D003176:Complement C3; D003181:Complement C4; D003182:Complement C5; D016177:Macrophage-1 Antigen; D011951:Receptors, Complement; D017463:Receptors, Complement 3b; C044257:factor H receptors; D015922:Complement C1q; D015926:Complement C3a; D015934:Complement C4a; D015936:Complement C5a; D003165:Complement System Proteins; D003166:Complement Activating Enzymes