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Tanto en el veneno crudo como en las fracciones colectadas, no se encontró actividad de fosfolipasa ni actividad proteolítica. La PAGE-SDS del veneno crudo, muestra la presencia de una banda bastante notoria de aproximadamente 14 KDa, y otras dos muy tenues, de aproximadamente 45KDa, lo cual significa que la mayoría de proteínas de este veneno son de peso molecular igual o menor a 14KDa.
Palabras clave: Veneno de escorpión, Centruroides, Tumbes, Perú.
SUMMARY
Proteins of Centruroides margaritatus scorpion venom had been separated by cationic exchange chromatography in
CM-Sephadex C-25 with 0,05M ammonium acetate pH 7, from 28,3 mg of venom obtained from 52 adults scorpions caught in Zarumilla, Tumbes, north of
Peru. The chromatographic elution showed 9 protein peaks and toxicity assays allowed the identification of three toxins with specific activity on
crustacean, insects and rodents, respectively. Both the crude venom and the collected fractions have shown neither phospholipase nor proteoyitic
activity. The PAGE-SDS of crude venom shows one very notorious protein band of 14 kDa
aproximately, and another two thin bands of 45 kDa aproximately, which imply that the majority of proteins from this venom are of a molecular weight similar or less than 14kDa.
Key words: scorpion venom, Centruroides, Tumbes, Peru.
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