1ZJS:
reference: I-superfamily conotoxins: sequence and structure analysis., Mondal S, Vijayan R, Shichina K, Babu RM, Ramakumar S, In Silico Biol. 2005;5(5-6):557-71. PMID: 16268797

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