2BV6:
reference: An oxidation-sensing mechanism is used by the global regulator MgrA in Staphylococcus aureus., Chen PR, Bae T, Williams WA, Duguid EM, Rice PA, Schneewind O, He C, Nat Chem Biol. 2006 Nov;2(11):591-5. Epub 2006 Sep 17. PMID: 16980961

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