1KCP:
reference: Three-dimensional structure of kappa-conotoxin PVIIA, a novel potassium channel-blocking toxin from cone snails., Savarin P, Guenneugues M, Gilquin B, Lamthanh H, Gasparini S, Zinn-Justin S, Menez A, Biochemistry 1998 Apr 21;37(16):5407-16. PMID: 9548922

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