Alpha-conotoxins act on postsynaptic membranes, they bind to the nicotinic acetylcholine receptors (nAChR) and thus inhibit them. This toxin inhibits rat alpha-7 and weakly alpha-6/alpha-3-beta-2 and alpha-3-beta-2 nAChR. In vivo, this toxin shows analgesic effect. Expressed by the venom duct. The cysteine framework is I (CC-C-C). Alpha4/7 pattern. Does not or very weakly inhibit mouse muscle alpha-1-beta-1-gamma-delta, and rat neuronal alpha-6/alpha-3-beta-4, alpha-3-beta-4, alpha-4-beta-4 and alpha-4-beta-2 nAChR. Belongs to the conotoxin A superfamily.