4BP-TQS is an agonist of human α7 nicotinic acetylcholine receptor (a7-nAChR), activates the channel via binding to an allosteric transmembrane site. Maximal activation of a7-nAChR by 4BP-TQS is eight fold greater than activation by a maximum dose of acetylcholine (Ach), and 4BP-TQS can poteniate an EC10 concentration of ACh to invoke a response that is 540-fold higher than the maximal dose of ACh alone.
