5A4O:
reference: Structural analysis and knock-out of a Burkholderia pseudomallei homolog of the eukaryotic transcription coactivator PC4., Werten S, Kohler C, Bayer NJ, Steinmetz I, Hinrichs W, Gene. 2016 Feb 15;577(2):140-7. doi: 10.1016/j.gene.2015.11.037. Epub 2015 Nov, 25. PMID: 26625975

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