6B58:
reference: Crystal structure of an assembly intermediate of respiratory Complex II., Sharma P, Maklashina E, Cecchini G, Iverson TM, Nat Commun. 2018 Jan 18;9(1):274. doi: 10.1038/s41467-017-02713-8. PMID: 29348404

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