| 1GZM: reference: Structure of bovine rhodopsin in a trigonal crystal form., Li J, Edwards PC, Burghammer M, Villa C, Schertler GF, J Mol Biol. 2004 Nov 5;343(5):1409-38. PMID: 15491621 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).