3B7D Crystal structure of the GLUR2 ligand binding core (HS1S2J) in complex with CNQX at 2.5 A resolution Rattus norvegicus (Norway rat) 3T9U CNQX bound to an oxidized double cysteine mutant (A452C/S652C) of the ligand binding domain of GluA2 Rattus norvegicus (rat) 3T9V CNQX bound to a reduced double cysteine mutant (A452C/S652C) of the ligand binding domain of GluA2 Rattus norvegicus (rat) 4F1Y CNQX bound to the ligand binding domain of GluA3 Rattus norvegicus (rat)