1AS5:
reference: Three-dimensional solution structure of conotoxin psi-PIIIE, an acetylcholine gated ion channel antagonist., Mitchell SS, Shon KJ, Foster MP, Davis DR, Olivera BM, Ireland CM, Biochemistry 1998 Feb 3;37(5):1215-20. PMID: 9477946

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