1M2C:
reference: A new alpha-conotoxin which targets alpha3beta2 nicotinic acetylcholine receptors., Cartier GE, Yoshikami D, Gray WR, Luo S, Olivera BM, McIntosh JM, J Biol Chem 1996 Mar 29;271(13):7522-8. PMID: 8631783

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).