3CYS:
reference: Determination of the NMR solution structure of the cyclophilin A-cyclosporin A complex., Spitzfaden C, Braun W, Wider G, Widmer H, Wuthrich K, J Biomol NMR 1994 Jul;4(4):463-82. PMID: 8075536

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