4JTN:
reference: Cysteine Dioxygenase Structures from pH4 to 9: Consistent Cys-Persulfenate Formation at Intermediate pH and a Cys-Bound Enzyme at Higher pH., Driggers CM, Cooley RB, Sankaran B, Hirschberger LL, Stipanuk MH, Karplus PA, J Mol Biol. 2013 Jun 7. pii: S0022-2836(13)00358-6. doi:, 10.1016/j.jmb.2013.05.028. PMID: 23747973

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