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Scutelarin

Scutelarin (, taipan activator, Oxyuranus scutellatus prothrombin-activating proteinase) is an enzyme. This enzyme catalyses the following chemical reaction

Selective cleavage of Arg-Thr and Arg-Ile in prothrombin to form thrombin and two inactive fragments

This enzyme is isolated from the venom of the Taipan snake ( Oxyuranus scutellatus).