Potassium Channels

ML418 is a selective, sub-micromolar pore blocker of Kir7.1 potassium channels. The inward rectifier potassium (Kir) channel Kir7.1 (KCNJ13) is a key regulator of melanocortin signaling in the brain, electrolyte homeostasis in the eye, and uterine muscle contractility during pregnancy.

VU0134992 is a selective inward rectifier potassium (Kir) channel Kir4.1 blocker with an IC50 of 0.97 ?M.

UCL 2077 is a selective slow-afterhyperpolarization (sAHP) channel blocker (IC50 = 500 nM in hippocampal neurons in culture), having minimal effects on Ca2+ channels, action potentials, input resistance and the medium after hyperpolarization.

DMP-543 (XR-543) is a KV7 channel blocker, also acts as a potent neurotransmitter release enhancer.

XE 991 dihydrochloride, a Kv7 (KCNQ) channels blocker, potently inhibits Kv7.1 (KCNQ1), Kv7.2 (KCNQ2), Kv7.2 + Kv7.3 (KCNQ3) channel, and M-current with IC50s of 0.75 ?M, 0.71 ?M, 0.6 μM, and 0.98 ?M, respectively.

Almokalant is a class III antiarrhythmic drug, acts as a potassium channel blocker, and inhibits a specific component (Ikr) of the time-dependent delayed rectifier K+ current.