MR-16728 (hydrochloride)

MR-16728 hydrochloride is a compound that promotes the release of acetylcholine and has activity that enhances the release of acetylcholine. MR-16728 hydrochloride inhibits acetylcholine release induced by KCl depolarization. MR-16728 hydrochloride also inhibits Ca (2+) -ATPase activity in pure presynaptic membranes. The half-maximal effect of MR-16728 hydrochloride occurs at a concentration of 13.5 μM. MR-16728 hydrochloride significantly enhances the release of acetylcholine in the presence of low concentrations of calcium (approximately 10 μM range) . Enhanced acetylcholine release was also observed with MR-16728 hydrochloride in proteoliposomes loaded with mediator proteins[1].