Accepted name: atrolysin B
Reaction: Cleavage of His5┼Leu, His10┼Leu, Ala14┼Leu, Tyr16┼Leu and Gly23┼Phe of insulin B chain; identical to the cleavage of insulin B chain by atrolysin C. Also cleaves ┼Ser bonds in glucagon
Other name(s): Crotalus atrox metalloendopeptidase b; hemorrhagic toxin b; Ht-b
Comments: From the venom of the western diamondback rattlesnake (Crotalus atrox). In peptidase family M12 (astacin family)
1.  Bjarnason, J.B. and Tu, A.T. Hemorrhagic toxins from western diamondback rattlesnake (Crotalus atrox) venom: isolation and characterization of five toxins and the role of zinc in hemorrhagic toxin e. Biochemistry 17 (1978) 3395–3404. [PMID: 210790]
2.  Bjarnason, J.B., Hamilton, D. and Fox, J.W. Studies on the mechanism of hemorrhage production by five proteolytic hemorrhagic toxins from Crotalus atrox venom. Biol. Chem. Hoppe-Seyler 369 (1988) 121–129. [PMID: 3060135]
[EC created 1992]