2YIU:
reference: X-ray structure of the dimeric cytochrome bc(1) complex from the soil bacterium Paracoccus denitrificans at 2.7-A resolution., Kleinschroth T, Castellani M, Trinh CH, Morgner N, Brutschy B, Ludwig B, Hunte C, Biochim Biophys Acta. 2011 Oct 3. PMID: 21996020

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