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-110153
    NS19504
    		Activator 99.93%
    NS19504 is a Ca2+-activated K+ channel (BK channel, KCa1.1 channel) activator (EC50=11.0 µM) with relaxing effect on bladder smooth muscle spontaneous phasic contractions.
    NS19504
  • 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-14946
    Amifampridine
    		Antagonist 99.99%
    Amifampridine (3,4-Diaminopyridine) is an orally active, potent and cell permeable voltage-gated potassium (Kv) channel blocker (PCB). Amifampridine is efficacy in the reversal of BoNT/A (HY-P79153) intoxication. Amifampridine increases transmitter release from neuromuscular junctions (NMJs). Amifampridine can be used for Lambert-Eaton myasthenic syndrome (LEMS) research.
    Amifampridine
  • HY-108588
    NS5806
    		Activator 99.92%
    NS5806, a potent potassium current activator, increases KV4.3/KChIP2 peak current amplitudes with an EC50 of 5.3 μM. NS5806 slows KV4.3 and KV4.2 current dacay in channel complexes containing KChIP2.
    NS5806
  • HY-108575
    Chromanol 293B
    		Inhibitor 99.2%
    Chromanol 293B is a selective blocker of the slow delayed rectifier K+ current (IKs) with IC50 of 1-10 μM and a weak inhibitor of KATP channel. Chromanol 293B also blocks the CFTR chloride current with an IC50 of 19 μM.
    Chromanol 293B
  • 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
  • HY-P0190A
    Iberiotoxin TFA
    		Inhibitor 99.67%
    Iberiotoxin (TFA) is a selective high conductance high conductance Ca2+-activated K+ channel inhibitor with a Kd of ~1 nM. Iberiotoxin (TFA) does not block other types of voltage-dependent ion channels.
    Iberiotoxin TFA
  • HY-B0267
    Oxybutynin
    		Inhibitor 99.86%
    Oxybutynin is an anticholinergic agent, which inhibits vascular Kv channels in a concentration-dependent manner, with an IC50 of 11.51 μM. Oxybutynin is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
    Oxybutynin
  • HY-124702
    ICA-105574
    		Inhibitor 99.88%
    ICA-105574 is a potent and efficacious hERG channel activator. The primary mechanism by which ICA-105574 potentiates hERG channel activity is by removing hERG channel inactivation. ICA-105574 steeply potentiates current amplitudes more than 10-fold with an EC50 value of 0.5 +/- 0.1 μM and a Hill slope (n(H)) of 3.3 +/- 0.2.
    ICA-105574
  • HY-B1467
    Domiphen bromide
    		Inhibitor 99.61%
    Domiphen bromide is a chemical antiseptic and a quaternary ammonium compound, used as a cationic surfactant.
    Domiphen bromide
  • HY-12533
    Disopyramide
    		Inhibitor 99.93%
    Disopyramide (Dicorantil) is a class IA antiarrhythmic agent with efficacy in ventricular and atrial arrhythmias. Disopyramide blocks the fast inward sodium current of cardiac muscle and prolongs the duration of cardiac action potentials. Disopyramide inhibits HERG encoded potassium channels. Disopyramide also exhibits complex protein binding, and has a potent negative inotropic action.
    Disopyramide
  • 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-B1500
    2,2,2-Trichloroethanol
    		Agonist 99.53%
    2,2,2-Trichloroethanol, the active form of Chloral hydrate, is an agonist for the nonclassical K2P channels TREK-1 (KCNK2) and TRAAK (KCNK4).
    2,2,2-Trichloroethanol
  • HY-157557
    AP30663
    		Inhibitor 99.95%
    AP30663 is a KCa2 channel inhibitor that can be used for the study of atrial fibrillation.
    AP30663
  • HY-B0563B
    Ropivacaine hydrochloride
    		Inhibitor 99.49%
    Ropivacaine hydrochloride 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 neuropathic pain management in vivo.
    Ropivacaine hydrochloride
  • HY-16916
    NS1643
    		Activator 99.04%
    NS1643 is a partial agonist of human ether-a-go-go-related gene (hERG) K+ channels with an EC50 of 10.5 μM. NS1643 inhibits the growth of breast cancer tumors in TNBC mouse models. NS1643 inhibits cell migration and invasion of breast cancer cells.
    NS1643
  • HY-117639
    AUT1
    		Modulator 99.93%
    AUT1 is a recombinant human Kv3 channel modulator. AUT1 modulates Kv3.1b and Kv3.2a channels in human recombinant with pEC50 values of 5.33 and 5.31 μM, respectively. AUT1 can be used for the research of disorders associated with dysfunction of inhibitory feedback in corticolimbic circuits, such as schizophrenia.
    AUT1
  • HY-B0883
    Proflavine hemisulfate
    		Inhibitor 98.45%
    Proflavine hemisulfate, an acridine dye, is a known DNA intercalating agent. Anti-microbial agent. Proflavine hemisulfate behaves as a pore blocker for Kir3.2. Proflavine hemisulfate is a potential lead compound for Kir3.2-associated neurological diseases.
    Proflavine hemisulfate
  • HY-128933
    AMP-PNP tetralithium
    		Inhibitor
    AMP-PNP tetralithium (Adenylyl-imidodiphosphate tetralithium) is a non-hydrolysable analogue of ATP and inhibits KATP channels.
    AMP-PNP tetralithium
  • HY-108593
    BMS-191011
    		Activator 99.12%
    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
Cat. No. Product Name / Synonyms Application Reactivity