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

Potassium Channel

KcsA

Potassium Channel

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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.

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-N2877
    Annonacin
    		Inhibitor 98.09%
    Annonacin is an acetylgenin that is toxic by inhibiting the pathway of the mitochondrial complex. Annonacin increases tau phosphorylation in R406W+/+ mice. Annonacin acts as an inhibitor of the sodium/potassium and sarcoplasmic reticulum (SERCA) ATPase pumps. Annonacin has significant killing effect on ovarian cancer cell, cervical cancer cell, breast cancer cell, bladder cancer cell and skin cancer cell. Annonacin induces apoptosis through Bax and Caspase-3-related pathways.
    Annonacin
  • HY-100712
    DPO-1
    		Inhibitor 98.39%
    DPO-1 is a potent Kv1.5 and Kv1.3 (EC50 = 3.1 μM) channels inhibitor with potential immunomodulatory and anti-inflammatory effects. DPO-1 reduces Kv1.3 current density, blunts Ca2+ influx in Ca2+-depleted Jurkat cells, and inhibits IL-2 secretion in activated Jurkat cells. DPO-1 inhibits Uric acid sodium (HY-B2130A) (MSU)-induced NLRP3 inflammasome activation by blocking Kv1.5-mediated K+ efflux. DPO-1 can be used for the study of immunologic disorders and atrial fibrillation.
    DPO-1
  • HY-101360
    1-EBIO
    		Agonist 99.96%
    1-EBIO is an activator of Ca2+ sensitive K+ channels. 1-EBIO is used to study the role of K+ channels in diverse physiological functions.
    1-EBIO
  • HY-108573
    P-1075
    		Activator 99.49%
    P-1075 is a potent activator of sulfonylurea receptor 2-associated ATP-sensitive potassium channels (SUR2-KIR6), with an EC50 value of 45 nM for SUR2B-KIR6 channel activation. P-1075 also P1075 opens mitochondrial K(ATP) channels and generates reactive oxygen species resulting in cardioprotection of rabbit hearts.
    P-1075
  • HY-B1194
    Tetramisole hydrochloride
    		Agonist 99.04%
    Tetramisole hydrochloride is an orally active, selective inward rectifier potassium channel agonist with an EC50 of approximately 30 μM for the Kir2.1 subunit. Tetramisole hydrochloride is also an anti-nematode agent that blocks neuromuscular transmission by non-competitive depolarization. Tetramisole hydrochloride promotes the forward transport of Kir2.1 channels, hyperpolarizes the resting potential (RP), shortens the action potential duration (APD), inhibits intracellular calcium overload and the PKA signaling pathway, and exerts anti-arrhythmic and anti-myocardial remodeling activities. Tetramisole hydrochloride can be used in cardiac electrophysiology research and research related to myocardial ischemia and heart failure.
    Tetramisole hydrochloride
  • HY-33350
    Clofilium tosylate
    		Inhibitor 99.60%
    Clofilium tosylate, a potassium channel blocker, induces apoptosis of human promyelocytic leukemia (HL-60) cells via Bcl-2-insensitive activation of caspase-3. Antiarrhythmic agent.
    Clofilium tosylate
  • HY-130354
    Dibutyryl-cGMP sodium
    		Activator 99.66%
    Dibutyryl-cGMP sodium (Bt2cGMP sodium) is a cell-permeable cGMP analogue. Dibutyryl-cGMP sodium preferentially activates cGMP-dependent protein kinase (PKG). Dibutyryl-cGMP sodium inhibits the release of [3H]-arachidonic acid from γ thrombin-stimulated human platelets. Dibutyryl-cGMP sodium induces peripheral antinociception via activation of ATP-sensitive K+ channels.
    Dibutyryl-cGMP sodium
  • HY-W011509
    CyPPA
    		Activator 99.71%
    CyPPA is a positive modulator of hSK3 and hSK2, with EC50 values of 14 μM and 5.6 μM, repectively. CyPPA is inactive on both hSK1 and hIK channels[1]
    CyPPA
  • HY-B0563A
    Ropivacaine hydrochloride monohydrate
    		Inhibitor 99.93%
    Ropivacaine hydrochloride monohydrate is a potent sodium channel blocker and blocks impulse conduction via reversible inhibition of sodium ion influx in nerve fibrese. Ropivacaine is also an inhibitor of K2P (two-pore domain potassium channel) TREK-1 with an IC50 of 402.7 μM in COS-7 cell's membrane. Ropivacaine is widely used for regional anesthesia and neuropathic pain management in vivo.
    Ropivacaine hydrochloride monohydrate
  • HY-125469
    ICA-105665
    		Agonist 99.85%
    ICA-105665 (PF-04895162) is a potent and orally active neuronal Kv7.2/7.3 and Kv7.3/7.5 potassium channels opener. ICA-105665 inhibits liver mitochondrial function and bile salt export protein (BSEP) transport (IC50 of 311 μM). ICA-105665 can penetrate the blood-brain barrier and has antiseizure effects.
    ICA-105665
  • HY-111655
    SKA-31
    		Activator 99.66%
    SKA-31 is a potent potassium channel activator with EC50s of 260 nM, 1.9 μM, 2.9 μM, and 2.9 μM for KCa3.1, KCa2.2, KCa2.1 and KCa2.3, respectively. SKA-31 potentiates endothelium-derived hyperpolarizing factor response and lowers blood pressure.
    SKA-31
  • HY-B0387
    Ibutilide fumarate
    		Inhibitor 99.78%
    Ibutilide (U70226E) fumarate, an action potential-prolonging antiarrhythmic, is a potent blocker of the rapidly activating delayed rectifier K+ current (IKr) in AT-1 cells.
    Ibutilide fumarate
  • HY-108593
    BMS-191011
    		Activator 99.56%
    BMS 191011 (BMS-A) is a potent BKCa channel opener (large-conductance Ca2+-activated potassium channel). BMS-191011 shows neuroprotective activities in rodent models of stroke.
    BMS-191011
  • HY-W010950A
    Flecainide hydrochloride
    		Inhibitor 99.93%
    Flecainide hydrochloride is an orally active antiarrhythmic agent. Flecainide hydrochloride can block sodium channels and inhibit calcium ion release mediated by the cardiac ryanodine receptor (RyR2). Flecainide hydrochloride can be used in the research of diseases such as catecholaminergic polymorphic ventricular tachycardia (CPVT).
    Flecainide hydrochloride
  • HY-N1504
    Loureirin B
    		Inhibitor 99.96%
    Loureirin B, a flavonoid extracted from Dracaena cochinchinensis, is an inhibitor of plasminogen activator inhibitor-1 (PAI-1), with an IC50 of 26.10 μM; Loureirin B also inhibits KATP, the phosphorylation of ERK and JNK, and has anti-diabetic activity.
    Loureirin B
  • HY-14290A
    Pinacidil monohydrate
    		99.92%
    Pinacidil (P-1134) monohydrate is a potent activator of ATP-sensitive potassium channel. Pinacidil monohydrate is an antihypertensive agent hyperpolarizes vascular smooth muscle by opening K+ channels. Pinacidil monohydrate enhances K+-efflux in smooth muscle. Pinacidil monohydrate has vasorelaxant properties. Pinacidil monohydrate is able to inhibit spontaneous tone and of reducing agonist induced contractions. Pinacidil monohydrate can be studied in research area such as cardiovascular diseases.
    Pinacidil monohydrate
  • HY-P0191A
    Charybdotoxin TFA
    		Inhibitor
    Charybdotoxin TFA, a 37-amino acid peptide, is a K+ channel blocker.
    Charybdotoxin TFA
  • HY-18063
    ML252
    		Inhibitor 99.9%
    ML252 is a selective inhibitor of KCNQ2 (Kv7.2) channel with an IC50s of 69 nM, 2.92 μM, 0.12 μM and 0.20 μM for KCNQ2, KCNQ1 (Kv7.1), KCNQ2/Q3 and KCNQ4, respectively. ML252 also inhibits Cytochrome P450 with IC50s of 6.1 nM (CYP1A2), 18.9 nM (CYP2C9), 3.9 nM (CYP3A4), 19.9 nM (CYP2D6), respectively. ML252 shows highly brain penetrant .
    ML252
  • HY-148825
    NP10679
    		Inhibitor 98.40%
    NP10679 is a selective, pH dependent GluN2B subunit-specific N-methyl-D-aspartate (NMDA) receptor inhibitor with high oral bioavailability and good brain penetration. NP10679 inhibits GluN2B with IC50s of 23 and 142 nM at pH 6.9 and 7.6, respectively. NP10679 is a histamine H1 antagonist and a hERG channel inhibitor with IC50s of 73 and 620 nM, respectively. NP10679 is a reversible inhibitor of human liver CYP enzymes.
    NP10679
  • HY-15565
    APD668
    		Inhibitor 99.73%
    APD668 is a potent, selective and orally active agonist of G-protein coupled receptor GPR119, with EC50s of 2.7 nM and 33 nM for hGPR119 and rGPR119, respectively. APD668 shows no significant inhibition of any of the five major CYP isoforms with the exception of CYP2C9 (Ki=0.1 μM). APD668 can be used for the research of steatohepatitis and diabetes.
    APD668
Cat. No. Product Name / Synonyms Application Reactivity