1PP9:
reference: Binding of the Respiratory Chain Inhibitor Antimycin to the Mitochondrial bc(1) Complex: A New Crystal Structure Reveals an Altered Intramolecular Hydrogen-bonding Pattern., Huang LS, Cobessi D, Tung EY, Berry EA, J Mol Biol 2005 Aug 19;351(3):573-97. PMID: 16024040

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