May act as a toxin. Expressed by the venom duct. Mostly expressed in embryos. Also slightly expressed in adults, but the toxin is not found in adult venom. The cysteine framework is I (CC-C-C). Alpha4/7 pattern. Does not show activity on alpha-3/beta-2 (CHRNA3/CHRNB2), alpha-7 (CHRNA7), alpha-9/alpha-10 (CHRNA9/CHRNA10), alpha-3/beta-4 (CHRNA3/CHRNB4), alpha-4/beta-2 (CHRNA4/CHRNB2) and alpha-4/beta-4 (CHRNA4/CHRNB4) acetylcholine receptors. Does not show inhibition on high-voltage activated (HVA) calcium channels currents that are mediated by GABA-B receptors. Belongs to the conotoxin A superfamily.