3HVA:
reference: Structural analysis of the GGDEF-EAL domain-containing c-di-GMP receptor FimX., Navarro MV, De N, Bae N, Wang Q, Sondermann H, Structure. 2009 Aug 12;17(8):1104-16. PMID: 19679088

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