| 4DXP: reference: A hinge migration mechanism unlocks the evolution of green-to-red photoconversion in GFP-like proteins., Kim H, Zou T, Modi C, Dorner K, Grunkemeyer TJ, Chen L, Fromme R, Matz MV, Ozkan SB, Wachter RM, Structure. 2015 Jan 6;23(1):34-43. doi: 10.1016/j.str.2014.11.011. PMID: 25565105 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).