2ZYL:
reference: Characterization of 3-ketosteroid 9{alpha}-hydroxylase, a Rieske oxygenase in the cholesterol degradation pathway of Mycobacterium tuberculosis., Capyk JK, D'Angelo I, Strynadka NC, Eltis LD, J Biol Chem. 2009 Apr 10;284(15):9937-46. Epub 2009 Feb 20. PMID: 19234303

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