2O6P:
reference: Crystal structure of the heme-IsdC complex, the central conduit of the Isd iron/heme uptake system in Staphylococcus aureus., Sharp KH, Schneider S, Cockayne A, Paoli M, J Biol Chem. 2007 Apr 6;282(14):10625-31. Epub 2007 Feb 7. PMID: 17287214

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