2RNJ:
reference: The NMR Structure of the Staphylococcus aureus Response Regulator VraR DNA Binding Domain Reveals a Dynamic Relationship between It and Its Associated Receiver Domain., Donaldson LW, Biochemistry. 2008 Mar 18;47(11):3379-88. Epub 2008 Feb 23. PMID: 18293926

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