4WQS: Thermus Thermophilus Rna Polymerase Backtracked Complex
reference: The ratcheted and ratchetable structural States of RNA polymerase underlie multiple transcriptional functions., Sekine S, Murayama Y, Svetlov V, Nudler E, Yokoyama S, Mol Cell. 2015 Feb 5;57(3):408-21. doi: 10.1016/j.molcel.2014.12.014. Epub 2015, Jan 15. PMID: 25601758

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