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. 1984 Apr;81(4):573-4.
doi: 10.1111/j.1476-5381.1984.tb16120.x.

Effects of sea-anemone toxin (ATX-II) on the frequency of miniature endplate potentials at rat neuromuscular junctions

J B Harris, I Tesseraux

Effects of sea-anemone toxin (ATX-II) on the frequency of miniature endplate potentials at rat neuromuscular junctions

J B Harris et al. Br J Pharmacol. 1984 Apr.

Abstract

Soleus and extensor digitorum longus muscles were isolated from rats. The muscles were exposed to ATX-II, a toxin isolated from extracts of the sea-anemone Anemonia sulcata . The toxin caused a dose-dependent increase in the frequency of miniature endplate potentials in both types of muscle. The increase in frequency could be reversed by the application of tetrodotoxin (TTX), and could be prevented by prior exposure of the muscles to TTX. It is concluded that ATX-II causes a sodium-dependent depolarization of the nerve-terminal membrane.

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