4ROC:
reference: Redox Signaling by the RNA Polymerase III TFIIB-Related Factor Brf2., Gouge J, Satia K, Guthertz N, Widya M, Thompson AJ, Cousin P, Dergai O, Hernandez N, Vannini A, Cell. 2015 Dec 3;163(6):1375-87. doi: 10.1016/j.cell.2015.11.005. PMID: 26638071

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