3K9V:
reference: The crystal structure of CYP24A1, a mitochondrial cytochrome P450 involved in vitamin D metabolism., Annalora AJ, Goodin DB, Hong WX, Zhang Q, Johnson EF, Stout CD, J Mol Biol. 2009 Dec 1. PMID: 19961857

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