| Description | Not all receptor antagonist that bind to enzymes are inhibitors, Since blocking an enzyme's activity can kill a pathogen , activator, caspase, esterase inhibitors , lipoprotein, many drugs are enzyme inhibitors, papain, pathway, peptidase, protease , proteinase, trypsin, while enzyme substrates bind and are converted to products in the normal catalytic cycle of the enzyme,  , Tissue, acrosin, activity, and decreases its , are , bind to enzymes and increase their , enzymatic activity, enzyme activator ligands or agonists , enzyme receptor , imbalance, metabolic , or correct a , or receptor ligands or receptor antagonists that bind to an , proteins  |
| Gene | Elevated PAI-1 is a risk factor for , (PAI-1) also known as , Plasminogen activator inhibitor-1 , SERPINE1 , and , atherosclerosis, endothelial plasminogen activator inhibitor , gene, is a , or , protein , serpin E1 , that in humans is encoded by the , thrombosis  |