6WPV:
reference: The genetic origin of evolidine, the first cyclopeptide discovered in plants, and related orbitides., Fisher MF, Payne CD, Chetty T, Crayn DM, Berkowitz O, Whelan J, Rosengren KJ, Mylne JS, J Biol Chem. 2020 Aug 19. pii: RA120.014781. doi: 10.1074/jbc.RA120.014781. PMID: 32817170

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