5TVS:
reference: The small molecule JIB-04 disrupts O2 binding in the Fe-dependent histone demethylase KDM4A/JMJD2A., Cascella B, Lee SG, Singh S, Jez JM, Mirica LM, Chem Commun (Camb). 2017 Feb 9;53(13):2174-2177. doi: 10.1039/c6cc09882g. PMID: 28144654

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