4QMA:
reference: Structures of Arg- and Gln-type bacterial cysteine dioxygenase homologs., Driggers CM, Hartman SJ, Karplus PA, Protein Sci. 2014 Oct 11. doi: 10.1002/pro.2587. PMID: 25307852

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