4AAJ:
reference: A monomeric TIM-barrel structure from Pyrococcus furiosus is optimized for extreme temperatures., Repo H, Oeemig JS, Djupsjobacka J, Iwai H, Heikinheimo P, Acta Crystallogr D Biol Crystallogr. 2012 Nov;68(Pt 11):1479-87. doi:, 10.1107/S0907444912037171. Epub 2012 Oct 13. PMID: 23090397

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