1BE3:
reference: Complete structure of the 11-subunit bovine mitochondrial cytochrome bc1 complex., Iwata S, Lee JW, Okada K, Lee JK, Iwata M, Rasmussen B, Link TA, Ramaswamy S, Jap BK, Science 1998 Jul 3;281(5373):64-71. PMID: 9651245

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