What Converts Prothrombin to Thrombin?

James H. Sterling
James H. Sterling
• • 6 min read

Prothrombin Is Transformed into Thrombin by a Clotting Factor Clotting Factor Coagulation, in Physiology, the Process by Which a Blood Clot Is Formed. the...

What Converts Prothrombin to Thrombin?

Prothrombin is transformed into thrombin by a clotting factor

clotting factor
Coagulation, in physiology, the process by which a blood clot is formed. The formation of a clot is often referred to as secondary hemostasis, because it forms the second stage in the process of arresting the loss of blood from a ruptured vessel.
› science › coagulation-of-blood
known as factor X or prothrombinase
prothrombinase
The prothrombinase complex catalyzes the conversion of prothrombin (Factor II), an inactive zymogen, to thrombin (Factor IIa), an active serine protease. The activation of thrombin is a critical reaction in the coagulation cascade, which functions to regulate hemostasis in the body.
› wiki › Prothrombinase
; thrombin then acts to transform fibrinogen, also present in plasma, into fibrin, which, in combination with platelets from the blood, forms a clot (a process called coagulation).

What enzyme converts prothrombin to thrombin?

The proteolytic conversion of prothrombin to thrombin catalysed by prothrombinase is one of the more extensively studied reactions of blood coagulation.

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Where is prothrombin converted to thrombin?

The prothrombinase complex converts PT into thrombin only when negatively charged PL bind PT. Once activated, thrombin triggers fibrinogen polymerization into fibrin. Thrombin binds to fibrin via its kringle domain, constituted by two kringle structures and a C-terminal serine protease.

James H. Sterling

James H. Sterling

Environmental Science & Climate Journalist
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James Sterling reports on renewable energy developments, climate policy, ecological conservation, and green tech innovations around the globe.