| 3OWG: reference: Domain-level rocking motion within a polymerase that translocates on single-stranded nucleic acid., Li H, Li C, Zhou S, Poulos TL, Gershon PD, Acta Crystallogr D Biol Crystallogr. 2013 Apr;69(Pt 4):617-24. doi:, 10.1107/S0907444913000346. Epub 2013 Mar 14. PMID: 23519670 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).