Abstract
Tityus serrulatus scorpion venom was fractionated by gel filtration affording two heterogeneous toxic fractions, T 1 and T 2; the latter was further fractionated by ion-exchange chromatography. The fraction of T 2 eluted with 0.15 M ammonium acetate buffer, originally named ‘tityustoxin’, was shown to be a pool of several proteins. One of them, TsTX, as well as T 1, was also named ‘tityustoxin’. The major and perhaps most potent toxin of the venom, γ-toxin, was eluted with 0.30 M buffer as a highly purified protein and shown to be different from TsTX. γ-Toxin is contained in both T 1 and T 2.
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