Tags: Enzyme.
Horrilysin (EC 3.4.24.47 Crotalus horridus metalloendopeptidase hemorrhagic proteinase IV Crotalus horridus horridus venom hemorrhagic proteinase) is an enzyme. This enzyme catalyses the following chemical reaction Cleavage of only the single bond Ala14-Leu in the insulin B chain Ser12-Leu in the A chain and Ile-Gly Pro-Ala and Ser-Trp in melittinThis endopeptidase is present in the venom of the timber rattlesnake (Crotalus horridus horridus)