3OVX:
reference: Trifluoromethylphenyl as P2 for ketoamide-based cathepsin S inhibitors., Cai J, Robinson J, Belshaw S, Everett K, Fradera X, van Zeeland M, van Berkom L, van Rijnsbergen P, Popplestone L, Baugh M, Dempster M, Bruin J, Hamilton W, Kinghorn E, Westwood P, Kerr J, Rankovic Z, Arbuckle W, Bennett DJ, Jones PS, Long C, Martin I, Uitdehaag JC, Meulemans T, Bioorg Med Chem Lett. 2010 Dec 1;20(23):6890-4. Epub 2010 Oct 26. PMID: 21030256

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