3BRE:
reference: Phosphorylation-independent regulation of the diguanylate cyclase WspR., De N, Pirruccello M, Krasteva PV, Bae N, Raghavan RV, Sondermann H, PLoS Biol. 2008 Mar 25;6(3):e67. PMID: 18366254

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