1GU2:
reference: Structural evidence for a proton transfer pathway coupled with haem reduction of cytochrome c" from Methylophilus methylotrophus., Enguita FJ, Pohl E, Turner DL, Santos H, Carrondo MA, J Biol Inorg Chem. 2006 Mar;11(2):189-96. Epub 2005 Dec 10. PMID: 16341897

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