5A8B:
reference: Structure of a Native-like Aureochrome 1a LOV Domain Dimer from Phaeodactylum tricornutum., Banerjee A, Herman E, Kottke T, Essen LO, Structure. 2016 Jan 5;24(1):171-8. doi: 10.1016/j.str.2015.10.022. Epub 2015 Dec , 10. PMID: 26688213

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).