4MKF:
reference: An integrated approach for thermal stabilization of a mesophilic adenylate kinase., Moon S, Jung DK, Phillips GN Jr, Bae E, Proteins. 2014 Mar 11. doi: 10.1002/prot.24549. PMID: 24615904

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