kv4.3

NS5806 is an effective potassium current activator. NS5806 slows KV4.3 and KV4.2 current decay in channel complexes containing KChIP2. NS5806 enhances KV4.3/KChIP2 peak current amplitudes (EC50: 5.3 μM).

Ajmaline (Cardiorythmine) is a class Ia anti-arrhythmic compound that is widely used for the diagnosis of Brugada syndrome and the acute treatment of atrial or ventricular tachycardia. Ajmaline inhibits cardiac Kv1.5 and Kv4.3 channels at therapeutic concentrations.

Mosapride Citrate is a 5-HT4 receptor agonist used to stimulate gastrointestinal motility via acetylcholine. Mosapride Citrate facilitates acetylcholine release from the enteric cholinergic neurons.

Phrixotoxin 2 selectively blocks the KV 4.2 and KV 4.3 channels, demonstrating high specificity in its interaction with these voltage-gated ion channels [1].

Jingzhaotoxin-X (JZTX-X) selectively inhibits Kv4.2 and Kv4.3 potassium channels, resulting in prolonged mechanical hyperalgesia [1].