5W76:
reference: Structural and Dynamics Comparison of Thermostability in Ancient, Modern, and Consensus Elongation Factor Tus., Okafor CD, Pathak MC, Fagan CE, Bauer NC, Cole MF, Gaucher EA, Ortlund EA, Structure. 2018 Jan 2;26(1):118-129.e3. doi: 10.1016/j.str.2017.11.018. Epub 2017, Dec 21. PMID: 29276038

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