2QPO: Thermotoga Maritima Thymidine Kinase In The Apo Form
reference: Quaternary structure change as a mechanism for the regulation of thymidine kinase 1-like enzymes., Segura-Pena D, Lichter J, Trani M, Konrad M, Lavie A, Lutz S, Structure. 2007 Dec;15(12):1555-66. PMID: 18073106

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