| 3CAP: reference: Crystal structure of the ligand-free G-protein-coupled receptor opsin., Park JH, Scheerer P, Hofmann KP, Choe HW, Ernst OP, Nature. 2008 Jul 10;454(7201):183-7. Epub 2008 Jun 18. PMID: 18563085 |
This OCA 
Structure page
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