| 1RG5: reference: Protein regulation of carotenoid binding; gatekeeper and locking amino acid residues in reaction centers of Rhodobacter sphaeroides., Roszak AW, McKendrick K, Gardiner AT, Mitchell IA, Isaacs NW, Cogdell RJ, Hashimoto H, Frank HA, Structure (Camb) 2004 May;12(5):765-73. PMID: 15130469 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).