1TT1:
reference: Crystal Structures of the GluR5 and GluR6 Ligand Binding Cores: Molecular Mechanisms Underlying Kainate Receptor Selectivity., Mayer ML, Neuron 2005 Feb 17;45(4):539-52. PMID: 15721240

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