1APF:
reference: Solution structure of the cardiostimulant polypeptide anthopleurin-B and comparison with anthopleurin-A., Monks SA, Pallaghy PK, Scanlon MJ, Norton RS, Structure 1995 Aug 15;3(8):791-803. PMID: 7582896

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