| 2R6A: reference: Structure of hexameric DnaB helicase and its complex with a domain of DnaG primase., Bailey S, Eliason WK, Steitz TA, Science. 2007 Oct 19;318(5849):459-63. PMID: 17947583 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).