2BNF:
reference: Structure of Escherichia coli UMP kinase differs from that of other nucleoside monophosphate kinases and sheds new light on enzyme regulation., Briozzo P, Evrin C, Meyer P, Assairi L, Joly N, Barzu O, Gilles AM, J Biol Chem. 2005 Jul 8;280(27):25533-40. Epub 2005 Apr 27. PMID: 15857829

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