| 5LJ5: reference: Cryo-EM structure of the spliceosome immediately after branching., Galej WP, Wilkinson ME, Fica SM, Oubridge C, Newman AJ, Nagai K, Nature. 2016 Jul 26. doi: 10.1038/nature19316. PMID: 27459055 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).