5MIK:
reference: X-ray Structure of the Carboplatin-Loaded Apo-Ferritin Nanocage., Pontillo N, Ferraro G, Helliwell JR, Amoresano A, Merlino A, ACS Med Chem Lett. 2017 Feb 28;8(4):433-437. doi: 10.1021/acsmedchemlett.7b00025., eCollection 2017 Apr 13. PMID: 28435532

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