Abstract
Degradation of melittin with α-Protease from Crotalus atrox venom (rattlesnake) confirmed the amino acid sequence of the toxic main peptide from bee venom. Hydrolysis occured mainly at the peptide bonds whose amino groups were provided by hydrophobic side chains such as valine, leucine and isoleucine bonds. However, on the contrary one glutamine bond was cleaved. Neverthelness, regarding the relatively high specificity, rattlesnake venom protease may be a valuable reagent for further sequence studies.

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