1ODV:
reference: PAS domains. Common structure and common flexibility., Vreede J, van der Horst MA, Hellingwerf KJ, Crielaard W, van Aalten DM, J Biol Chem. 2003 May 16;278(20):18434-9. Epub 2003 Mar 14. PMID: 12639952

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