"A role used to imply the interaction or binding of an active ingredient of a drug/chemical agent at the molecular level with its target. When possible, the role value should reflect the direct alteration of function of a target molecule or complex. The domain and range for this role are 'Drug, Food, Chemical or Biomedical Material' and 'Biological Process', respectively.NCI" . "R124"^^ . . . . "Chemical_Or_Drug_Has_Mechanism_Of_ActionPTNCI" . "Chemical_Or_Drug_Has_Mechanism_Of_Action"^^ . "Chemical_Or_Drug_Has_Mechanism_Of_Action"^^ . "Has Mechanism Of Action"^^ . "Conceptual Entity"^^ .