Potassium Channel
KcsA
Potassium channels are the most widely distributed type of ion channel and are found in virtually all living organisms. They form potassium-selective pores that span cell membranes. Potassium channels are found in most cell types and control a wide variety of cell functions. Potassium channels function to conduct potassium ions down their electrochemical gradient, doing so both rapidly and selectively. Biologically, these channels act to set or reset the resting potential in many cells. In excitable cells, such asneurons, the delayed counterflow of potassium ions shapes the action potential. By contributing to the regulation of the action potential duration in cardiac muscle, malfunction of potassium channels may cause life-threatening arrhythmias. Potassium channels may also be involved in maintaining vascular tone.
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Potassium Channel Inhibitors
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Potassium Channel Agonists
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Potassium Channel Antagonists
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Potassium Channel Activators
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Potassium Channel Modulators
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Potassium Channel Chemical
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Potassium Channel Controls
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Potassium Channel Related Products (1109)
Related Products (1109)
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Antibodies (6)
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Related Compound Screening Libraries (1)
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W-7 hydrochloride
0 ImagesW-7 hydrochloride is a selective calmodulin antagonist. W-7 hydrochloride inhibits the Ca2+-calmodulin-dependent phosphodiesterase and myosin light chain kinase with IC50 values of 28 μM and 51 μM, respectively. W-7 hydrochloride induces apoptosis and has antitumor and vascular relaxing activity. W-7 hydrochloride is a blocker of Kv4.3 and can be used for research of arrhythmias.
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DCPIB
0 ImagesDCPIB is a selective, reversible and potent inhibitor of volume-regulated anion channels (VRAC). DCPIB voltage-dependently activates potassium channels TREK1 and TRAAK, and inhibits TRESK, TASK1 and TASK3 (IC50s: 0.14, 0.95, 50.72 μM, respectively). DCPIB is also a selective blocker of swelling-induced chloride current (ICl,swell), with an IC50 of 4.1 μM. DCPIB is a useful tool for investigating structure-function studies of K2P channels.
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Dofetilide
0 ImagesSynonyms: UK 68789Dofetilide (UK 68789), as a class III antiarrhythmic agent, is an orally active, potent and specific IKr blocker. Dofetilide can be used for the research of cardiovascular disease.
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Quinidine (15% dihydroquinidine)
0 ImagesQuinidine (15% dihydroquinidine) is an orally active antiarrhythmic agent. Quinidine (15% dihydroquinidine) reduces the expression level of P-gp, inhibits P-gp-mediated efflux, increases the intracellular accumulation of P-gp substrates, induces PARP cleavage and Caspase-3 activation, and elevates the proportion of Apoptotic cells at the sub-G1 phase. Quinidine (15% dihydroquinidine) exerts sustained block and open-channel block effects on IK(f). Quinidine (15% dihydroquinidine) alters the urinary metabolic ratio of Amphetamine, modulates the Pentylenetetrazol-induced seizure threshold, and regulates the anticonvulsant effect of Dextromethorphan. Quinidine (15% dihydroquinidine) can be used in studies related to uterine sarcoma and seizures.
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Siponimod
0 ImagesSynonyms: BAF-312Siponimod (BAF-312) is an orally active, blood-brain barrier penetrant dual agonist of S1P1/S1P5, with EC50 values of 0.39 nM and 0.98 nM, respectively. Siponimod induces S1P1 internalization, activates GIRK channels, inhibits lymphocyte egress, reduces peripheral lymphocyte counts, triggers transient bradycardia, prevents synaptic neurodegeneration, promotes remyelination, alleviates demyelination, and prevents the loss of GABAergic interneurons. Siponimod can be used in research related to multiple sclerosis.
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Amiodarone
0 ImagesAmiodarone, a benzofuran-based Class III antiarrhythmic agent, inhibits WT outward ionic current (IhERG) tails with an IC50 of ∼45 nM. Amiodarone induces cell proliferation and myofibroblast differentiation via ERK1/2 and p38 MAPK signaling in fibroblasts. Amiodarone can be used in the research of both supraventricular and ventricular arrhythmias.
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Amiodarone hydrochloride
0 ImagesAmiodarone hydrochloride, a benzofuran-based Class III antiarrhythmic agent, inhibits WT outward ionic current (IhERG) tails with an IC50 of ∼45 nM. Amiodarone hydrochloride induces cell proliferation and myofibroblast differentiation via ERK1/2 and p38 MAPK signaling in fibroblasts. Amiodarone hydrochloride can be used in the research of both supraventricular and ventricular arrhythmias.
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Azetukalner
0 ImagesSynonyms: XEN1101Azetukalner (XEN1101) is a selective and orally active Kv7.2/Kv7.3 potassium channel opener with an EC50 of 27 nM. Azetukalner is approximately 4-fold more selective for Kv7.2/7.3 over Kv7.3/7.5 (EC50 of 94 nM) and Kv7.4 (EC50 of 113 nM) channels. Azetukalner exhibits a selectivity >100-fold for Kv7 channels over other ion channels and receptors. Azetukalner can be used for the study of focal epilepsy.
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TRAM-34
0 ImagesTRAM-34 is a highly selective blocker of intermediate-conductance calcium-activated K+ channel (IKCa1) (Kd=20 nM).
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Ketanserin
0 ImagesSynonyms: R41468Ketanserin is a selective 5-HT2 receptor antagonist. Ketanserin also blocks hERG current (IhERG) in a concentration-dependent manner (IC50=0.11 μM).
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Astemizole
0 ImagesSynonyms: R 43512Astemizole (R 43512), a second-generation antihistamine agent to diminish allergic symptoms with a long duration of action, is a histamine H1-receptor antagonist, with an IC50 of 4 nM. Astemizole also shows potent hERG K+ channel blocking activity with an IC50 of 0.9 nM. Astemizole has antipruritic effects.
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Cesium chloride
0 ImagesCesium chloride is a blocker of potassium channel. Cesium chloride prevents the decrease of Na+ transport produced by Alloxan. Cesium chloride has induced cardiac arrhythmias, including torsade de pointes in animal models.
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Quinine
0 ImagesQuinine is an orally active alkaloid extracted from cinchona bark, possessing various biological activities including antimalarial, antidengue virus (DENV), and anticancer properties. Quinine is a potassium channel inhibitor that inhibits WT mouse Slo3 (KCa5.1) channel currents evoked by voltage pulses to +100 mV with an IC50 of 169 μM.
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Uridine 5'-monophosphate
0 ImagesUridine 5'-monophosphate (5'-Uridylic acid) is an orally active mitochondrial ATP-dependent potassium channel activator that has a protective effect on the heart. Uridine 5'-monophosphate can promote the synthesis of CDP-choline and induce apoptosis in intestinal epithelial cells, which is beneficial for gut development and reduces diarrhea.
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Rosuvastatin
0 ImagesSynonyms: ZD 4522Rosuvastatin (ZD 4522) is a competitive HMG-CoA reductase inhibitor with an IC50 of 11 nM. Rosuvastatin potently blocks hERG current with an IC50 of 195 nM, delayed cardiac repolarization, and thereby prolonged action potential durations (APDs) and corrected QT interval (QTc) intervals. Rosuvastatin reduces the expression of the mature hERG and the interaction of heat shock protein 70 (Hsp70) with the hERG protein. Rosuvastatin effectively lowers low-density lipoprotein (LDL) cholesterol, triglycerides, and C-reactive protein levels.
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Terfenadine
0 ImagesSynonyms: (±)-Terfenadine; MDL-991Terfenadine ((±)-Terfenadine) is a potent open-channel blocker of hERG with an IC50 of 204 nM. Terfenadine, an H1 histamine receptor antagonist, acts as a potent apoptosis inducer in melanoma cells through modulation of Ca2+ homeostasis. Terfenadine induces ROS-dependent apoptosis, simultaneously activates Caspase-4, -2, -9.
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GW9508
0 ImagesGW9508 is a potent and selective G protein-coupled receptors FFA1 (GPR40) and GPR120 agonist with pEC50s of 7.32 and 5.46, respectively. GW9508 shows ~100-fold selectivity for GPR40 over GPR120. GW9508 is inactive against other GPCRs, kinases, proteases, integrins and PPARs. GW9508 is a glucose-sensitive insulin secretagogue and an ATP-sensitive potassium (KATP) channels opener. Anti-inflammatory and anti-atherosclerotic activities.
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Diazoxide
0 ImagesDiazoxide (Sch-6783) is an ATP-sensitive potassium channel activator, has the potential for hyperinsulinism treatment.
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AMP-PNP tetralithium
0 ImagesSynonyms: Adenylyl-imidodiphosphate tetralithiumAMP-PNP (Adenylyl-imidodiphosphate) tetralithium is a non-hydrolyzable ATP analog. AMP-PNP tetralithium binds to ATP binding sites competely but is not hydrolyzed by enzymes, providing stable experimental conditions for studying ATP-dependent processes. AMP-PNP tetralithium can also be used to study enzyme activity, kinase regulation, DNA/RNA metabolism, ion channel function, and protein complex assembly.
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H3B-120
0 ImagesH3B-120 is a highly selective, competitive and allosteric carbamoyl phosphate synthetase 1 (CPS1) inhibitor with an IC50 of 1.5 μM and a Ki of 1.4 μM. H3B-120 has anti-cancer activity.
