1. Signaling Pathways
  2. Membrane Transporter/Ion Channel
  3. Potassium Channel

Potassium Channel

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.

Potassium Channel Related Products (211):

Cat. No. Product Name Effect Purity
  • HY-100381
    Nigericin sodium salt Activator >98.0%
    Nigericin sodium salt is an antibiotic from Streptomyces hygroscopicus that works by acting as an H+, K+, and Pb2+ ionophore, a NLRP3 activator.
  • HY-100545
    BAPTA-AM Inhibitor 99.80%
    BAPTA-AM is a well-known membrane permeable Ca2+ chelator. BAPTA-AM inhibits hERG channels, hKv1.3 and hKv1.5 channels in HEK 293 cells with IC50s of 1.3 μM, 1.45 μM and 1.23 μM, respectively.
  • HY-B0407A
    Chlorpromazine hydrochloride Antagonist 99.90%
    Chlorpromazine Hydrochloride is an antagonist of the dopamine D2, 5HT2A, potassium channel and sodium channel. Chlorpromazine binds with D2 and 5HT2A with Kis of 363 nM and 8.3 nM, respectively.
  • HY-19620
    Branaplam Inhibitor 99.67%
    Branaplam (LMI070; NVS-SM1) is a highly potent, selective and orally active survival motor neuron-2 (SMN2) splicing modulator with an EC50 of 20 nM for SMN. Branaplam inhibits human-ether-a-go-go-related gene (hERG) with an IC50 of 6.3 μM. Branaplam elevates full-length SMN protein and extends survival in a severe spinal muscular atrophy (SMA) mouse model.
  • HY-19545A
    SCH-23390 hydrochloride Inhibitor 99.31%
    SCH-23390 hydrochloride (R-(+)-SCH-23390 hydrochloride) is a potent and selective dopamine D1-like receptor antagonist with Kis of 0.2 nM and 0.3 nM for the D1 and D5 receptor, respectively. SCH-23390 hydrochloride is a potent and high efficacy human 5-HT2C receptor agonist with a Ki of 9.3 nM. SCH-23390 hydrochloride also binds with high affinity to the 5-HT2 and 5-HT1C receptors. SCH-23390 hydrochloride inhibits G protein-coupled inwardly rectifying potassium (GIRK) channels with an IC50 of 268 nM.
  • HY-135746
    OR-1896 Activator 98.90%
    OR-1896 is an active long-lived metabolite of Levosimendan. OR-1896 is a highly selective phosphodiesterase (PDE) III isoform inhibitor and a powerful vasodilator. OR-1896 can open ATP-sensitive K+ channels and has Ca2+-sensitizing effect. OR-1896 mitigates cardiomyocyte apoptosis, cardiac remodeling and myocardial inflammation.
  • HY-W011641
    (±)-Naringenin Activator
    (±)-Naringenin is a naturally-occurring flavonoid. (±)-Naringenin displays vasorelaxant effect on endothelium-denuded vessels via the activation of BKCa channels in myocytes.
  • HY-127106
    VU0810464 Activator 99.72%
    VU0810464 is a potent and selective non-ureaG protein-gated inwardly-rectifying potassium channels (GIRK, Kir3) activator. VU0810464 displays nanomolar potency for neuronal (EC50=165 nM) and GIRK1/4 (EC50=720 nM) channels with improved brain penetration.
  • HY-17504
    Rosuvastatin Calcium Inhibitor
    Rosuvastatin Calcium (Rosuvastatin hemicalcium) is a competitive HMG-CoA reductase inhibitor with an IC50 of 11 nM. Rosuvastatin Calcium potently blocks human ether-a-go-go related gene (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 Calcium reduces the expression of the mature hERG and the interaction of heat shock protein 70 (Hsp70) with the hERG protein. Rosuvastatin Calcium is very effective in lowering low-density lipoprotein (LDL) cholesterol, triglycerides, and C-reactive protein levels.
  • HY-15206
    Glibenclamide Inhibitor 99.79%
    Glibenclamide is a selective inhibitor of ATP-sensitive K+ channel.
  • HY-50694
    Senicapoc Inhibitor 99.83%
    Senicapoc (ICA-17043) is a potent and selective Gardos channel (Ca2+-activated K+ channel; KCa3.1) blocker with an IC50 of 11 nM. Senicapoc blocks Ca2+-induced rubidium flux from human RBCs with an IC50 value of 11 nM and inhibits RBC dehydration with IC50 of 30 nM.
  • HY-14188
    Amiodarone hydrochloride Inhibitor 99.67%
    Amiodarone hydrochloride is an antiarrhythmic drug for inhibition of ATP-sensitive potassium channel with IC50 of 19.1 μM.
  • HY-15551
    E-4031 Inhibitor
    E-4031 is a class III antiarrhythmic agent which selectively blocks hERG potassium channel.
  • HY-13764
    Tetrandrine Inhibitor 99.90%
    Tetrandrine (NSC-77037; d-Tetrandrine) is a bis-benzyl-isoquinoline alkaloid, which inhibits voltage-gated Ca2+ current (ICa) and Ca2+-activated K+ current.
  • HY-12882A
    Ifenprodil tartrate Inhibitor 98.87%
    Ifenprodil tartrate is a typical noncompetitive NMDA receptor antagonist. Ifenprodil tartrate exerts high affinity at NR1A/NR2B receptors (IC50=0.34 μM) over 400-fold than at NR1A/NR2A receptors (IC50=146 μM). Ifenprodil tartrate inhibits GIRK (Kir3), reduces inward currents through the basal GIRK activity. Ifenprodil tartrate has the potential to be a cerebral vasodilator.
  • HY-10015
    PAP-1 Inhibitor 99.69%
    PAP-1 (5-(4-Phenoxybutoxy)psoralen) is a potent, selective, and orally active Kv1.3 blocker (EC50=2 nM). PAP-1 blocks Kv1.3 in a use-dependent manner and acts by preferentially binding to the C-type inactivated state of the channel. PAP-1 exhibits 23-fold selectivity over Kv1.5 (EC50=45 nM), and further displays 33- to 125-fold selectivity over all other Kv1-family channels. PAP-1 does not exhibit cytotoxic or phototoxic effects.
  • HY-B1140
    Diazoxide Activator 99.99%
    Diazoxide (Sch-6783) is an ATP-sensitive potassium channel activator, has the potential for hyperinsulinism treatment.
  • HY-B0401
    Tolbutamide Inhibitor 99.96%
    Tolbutamide is a first generation potassium channel blocker, sulfonylurea oral hypoglycemic drug.
  • HY-N0603
    20(S)-Ginsenoside Rg3 Inhibitor >98.0%
    20(S)-Ginsenoside Rg3 is the main component of Red ginseng. Ginsenoside Rg3 inhibits Na+ and hKv1.4 channel with IC50s of 32.2±4.5 and 32.6±2.2 μM, respectively. 20(S)-Ginsenoside Rg3 also inhibits levels, NF-κB activity, and COX-2 expression.
  • HY-15598
    20-HETE Inhibitor
    20-HETE (20-hydroxy Arachidonic Acid) is a CYP450 metabolite and a potent vasoconstrictor. 20-HETE is an endogenous inhibitor of the large-conductance Ca2+-activated K+ channel in renal arterioles. 20-HETE constricts smooth muscles, stimulates smooth muscle proliferation and migration. 20-HETE increases NADPH oxidase, ROS, and NF-κB activity. 20-HETE also inhibits endothelial NO synthase and inhibits apoptosis of pulmonary artery smooth muscle cells.
Isoform Specific Products

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