2GFE:
reference: Interdomain interactions in AMPA and kainate receptors regulate affinity for glutamate., Weston MC, Gertler C, Mayer ML, Rosenmund C, J Neurosci. 2006 Jul 19;26(29):7650-8. PMID: 16855092

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