[alpha-Neurotoxins and alpha-conotoxins--nicotinic cholinoreceptor blockers].

The review is devoted to the competitive blockers of different nicotinic acetylcholine receptors, alpha-neurotoxins from snake venoms, and alpha-conotoxins from marine snails of the Conidae family. The relationship between the structure and function of these toxins is discussed. Recent data on the mechanism of alpha-neurotoxin and alpha-conotoxin interaction with the nicotinic acetylcholine receptor are presented.