SJM-3 is a positive allosteric modulator of different isoforms of the GABAA receptor. SJM-3 binds at the high-affinity benzodiazepine binding site at the α+/γ- subunit interface In Vitro SJM-3 binds at the high-affinity benzodiazepine binding site at theα+/γ- subunit interface but effects its action through another site presumably located within the transmembrane domain. The binding affinity of SJM-3 at wild type receptors is determined by displacement of [ 3 H]-Flunitrazepam and [ 3 H]-Ro15-1788 and indicates a K i of SJM-3 amounting to 218±70 nM and 242±38 nM, respectively. MCE has not independently confirmed the accuracy of these methods. They are for reference only. Form:Solid IC50& Target:GABAA receptor