About The Medical Condition Activator, Prekallikrein

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Find the definition of the medical term Activator, Prekallikrein. Activator, Prekallikrein defined and explained for easy understanding at the Medical Conditions from ClusterMed.info.

Activator, Prekallikrein

Activator, Prekallikrein Medical Condition Defined & Explained
Activator, Prekallikrein Medical Condition

What's The Definition Of The Medical Condition Activator, Prekallikrein?

Activated form of factor XII. In the initial event in the intrinsic pathway of blood coagulation, kallikrein (with cofactor HIGH MOLECULAR WEIGHT KININOGEN) cleaves factor XII to XIIa. Factor XIIa is then further cleaved by kallikrein, plasmin, and trypsin to yield smaller factor XII fragments (Hageman-Factor fragments). These fragments increase the activity of prekallikrein to kallikrein but decrease the procoagulant activity of factor XII.

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