Letter P

Prothrombin

A coagulation (clotting) factor that is needed for the normal clotting of blood.

A cascade of biochemical events leads to the formation of the final clot.

In this cascade, prothrombin is a precursor to thrombin.

Prothrombin is also known as thrombinogen and, in medical jargon, as pro.

See also: Prothrombin mutation G20210A; and Prothrombin time.

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