1PMX:
reference: Complex with a phage display-derived peptide provides insight into the function of insulin-like growth factor I., Schaffer ML, Deshayes K, Nakamura G, Sidhu S, Skelton NJ, Biochemistry 2003 Aug 12;42(31):9324-34. PMID: 12899619

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