4YOF:
reference: Distal Hydrogen-Bonding Interactions in Ligand Sensing and Signaling by Mycobacterium tuberculosis DosS., Basudhar D, Madrona Y, Yukl ET, Sivaramakrishnan S, Nishida CR, Moenne-Loccoz P, Ortiz de Montellano PR, J Biol Chem. 2016 May 27. pii: jbc.M116.724815. PMID: 27235395

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