| 3VK1: reference: A Green Fluorescent Protein Containing a QFG Tri-Peptide Chromophore: Optical Properties and X-Ray Crystal Structure., Battad JM, Traore DA, Byres E, Rossjohn J, Devenish RJ, Olsen S, Wilce MC, Prescott M, PLoS One. 2012;7(10):e47331. doi: 10.1371/journal.pone.0047331. Epub 2012 Oct 10. PMID: 23071789 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).