Plasma Kallikrein

**Definition:** A peptidohydrolytic enzyme that is formed from PREKALLIKREIN by FACTOR XIIA. It activates FACTOR XII; FACTOR VII; and PLASMINOGEN. It is selective for both ARGININE and to a lesser extent LYSINE bonds. EC 3.4.21.34.

**Tree numbers:** - D08.811.277.656.300.760.442.700 - D08.811.277.656.959.350.442.700

**Synonyms:** - Kallikrein I - Kininogenin - Serum Kallikrein