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Jararhagin

Jararhagin (, HF2-proteinase, JF1) is an enzyme. This enzyme catalyses the following chemical reaction

Hydrolysis of -His-Leu-, -Ala-Leu-, -Tyr-Leu-and -Phe-Phe- bonds in insulin B chain

This endopeptidase is present in the venom of the jararaca snake ( Bothrops jararaca).