| 5MQF: reference: Cryo-EM structure of a human spliceosome activated for step 2 of splicing., Bertram K, Agafonov DE, Liu WT, Dybkov O, Will CL, Hartmuth K, Urlaub H, Kastner B, Stark H, Luhrmann R, Nature. 2017 Feb 16;542(7641):318-323. doi: 10.1038/nature21079. Epub 2017 Jan, 11. PMID: 28076346 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).