JTV-519 hemifumarate,Antiarrhythmic and cardioprotective properties. is a Ca2+-dependent blocker of sarcoplasmic reticulum Ca2+-stimulated ATPase (SERCA) and a partial agonist of ryanodine receptors in striated muscle.
JTV-519 free base (K201 free base), recognized for its antiarrhythmic and cardioprotective properties, functions as a Ca2+-dependent blocker of sarcoplasmic reticulum Ca2+-stimulated ATPase (SERCA) and serves as a partial agonist of ryanodine receptors in striated muscle.