| 3H3V: reference: Torpedo Nuclease Rat1 Is Insufficient to Terminate RNA Polymerase II in Vitro., Dengl S, Cramer P, J Biol Chem. 2009 Aug 7;284(32):21270-9. Epub 2009 Jun 17. PMID: 19535338 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).