4UXH:
reference: Structural and Kinetic Characterization of Thymidine Kinase from Leishmania major., Timm J, Bosch-Navarrete C, Recio E, Nettleship JE, Rada H, Gonzalez-Pacanowska D, Wilson KS, PLoS Negl Trop Dis. 2015 May 15;9(5):e0003781. doi: 10.1371/journal.pntd.0003781., eCollection 2015 May. PMID: 25978379

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