3EK5:
reference: Unique GTP-Binding Pocket and Allostery of Uridylate Kinase from a Gram-Negative Phytopathogenic Bacterium., Tu JL, Chin KH, Wang AH, Chou SH, J Mol Biol. 2008 Nov 25. PMID: 19059268

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