Protease Inhibitor. Activity: ≥3 TIU/mg. Unit Definition: One trypsin inhibitor unit (TIU), which is equal to 900 kallikrein inhibitor units (KIU) and 8800 Schwert and Takenake units (STU), is the amount of inhibitor per mg which hydrolyzes one μmol of benzoyl-DL-arginine-p-nitroanilide (BAPNA) per minute. One TIU reduces the activity of two trypsin units by 50%. It is reactive against trypsin, chymotrypsin, plasmatic and glandular kininogenases, plasmin, urokinase, clotting factor XIIa, protein C, proteinases of the complement system, and leukocyte and tissue proteinases.
|5 to 7|
|Aprotinin from Bovine Lung|