1KHT:
reference: Structures of thermophilic and mesophilic adenylate kinases from the genus Methanococcus., Criswell AR, Bae E, Stec B, Konisky J, Phillips GN Jr, J Mol Biol 2003 Jul 25;330(5):1087-99. PMID: 12860130

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