Geographic variation of individual venom profile of Crotalus durissus snakes

Abstract

The results highlighted the individual variability among the venoms of <i>C. durissus</i> ssp. specimens. Importantly, our data point to a geographical variation of <i>C. durissus</i> ssp. venom profile, regardless of the subspecies, as evidenced by PLA₂ isoforms complexity, which may explain the increase in venom neurotoxicity from Northeastern through Southern Brazil reported for the species.