1CNL:
reference: Solution structure of alpha-conotoxin ImI by 1H nuclear magnetic resonance., Gehrmann J, Daly NL, Alewood PF, Craik DJ, J Med Chem 1999 Jul 1;42(13):2364-72. PMID: 10395477

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