α-Conotoxin AuIB

α-Conotoxin AuIB, a potent and selective α3β4 nicotinic acetylcholine receptor (nAChR) antagonist, blocks α3β4 nAChRs expressed in Xenopus oocytes with an IC50 of 0.75 μM[1].

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[1]Siqin Luo, et al. α-Conotoxin AuIB Selectively Blocks α3β4 Nicotinic Acetylcholine Receptors and Nicotine-Evoked Norepinephrine Release.Journal of Neuroscience. 1998 Nov 1, 18 (21): 8571-8579.