4CTA:
reference: Structure and Mechanism of the Bifunctional CinA Enzyme from Thermus thermophilus., Karuppiah V, Thistlethwaite A, Dajani R, Warwicker J, Derrick JP, J Biol Chem. 2014 Oct 13. pii: jbc.M114.608448. PMID: 25313401

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