3KFM:
reference: Enhanced efficacy without further cleft closure: reevaluating twist as a source of agonist efficacy in AMPA receptors., Birdsey-Benson A, Gill A, Henderson LP, Madden DR, J Neurosci. 2010 Jan 27;30(4):1463-70. PMID: 20107073

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