1NRL:
reference: Coactivator binding promotes the specific interaction between ligand and the pregnane X receptor., Watkins RE, Davis-Searles PR, Lambert MH, Redinbo MR, J Mol Biol 2003 Aug 22;331(4):815-28. PMID: 12909012

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