4W5J:
reference: New crystal structures of adenylate kinase from Streptococcus pneumoniae D39 in two conformations., Thach TT, Lee S, Acta Crystallogr F Struct Biol Commun. 2014 Nov;70(Pt 11):1468-71. doi:, 10.1107/S2053230X14020718. Epub 2014 Oct 25. PMID: 25372811

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