| 2P5L: reference: Structure and function of the arginine repressor-operator complex from Bacillus subtilis., Garnett JA, Marincs F, Baumberg S, Stockley PG, Phillips SE, J Mol Biol. 2008 May 30;379(2):284-98. Epub 2008 Mar 12. PMID: 18455186 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).