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-W100209
    5Me3F4AP
    		Inhibitor 99.55%
    5Me3F4AP is a potent blocker of potassium channel, with the IC50 of 220 μM to 693 μM when the pH is increased from 6.4 to 9.1. 5Me3F4AP has the potential to cross the blood-brain barrier and potential application in positron emission tomography (PET).
    5Me3F4AP
  • HY-120355A
    AP14145 hydrochloride
    		Inhibitor 98.3%
    AP14145 hydrochloride is a potent KCa2 (SK) channel negative allosteric modulator with an IC50 of 1.1 μM for KCa2.2 (SK2) and KCa2.3 (SK3) channels. AP14145 hydrochloride inhibition strongly depends on two amino acids, S508 and A533 in the channel. AP14145 hydrochloride prolonged atrial effective refractory period (AERP) in rats and demonstrates antiarrhythmic effects in a Vernakalant-resistant porcine model of atrial fibrillation (AF).
    AP14145 hydrochloride
  • HY-B0563C
    Ropivacaine mesylate
    		Inhibitor 99.51%
    Ropivacaine mesylate is a long-acting amide local anaesthetic agent for a spinal block and effectively blocks neuropathic pain. Ropivacaine blocks impulse conduction via reversible inhibition of?sodium ion influx?in nerve fibressup>[1]. 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 mesylate
  • HY-19857
    Sulcardine sulfate
    Sulcardine (sulfate) is a novel multi-ion channel blocker with activity against Na+, K+ and Ca2+ channels. Sulcardine has antiarrhythmic activity.
    Sulcardine sulfate
  • HY-113673
    A-935142
    		Activator 98.77%
    A-935142 is a human ether-a-go-go-related gene (hERG, Kv 11.1) channel activator. A-935142 enhances hERG current in a complex manner by facilitation of activation, reduction of inactivation, and slowing of deactivation, and abbreviates atrial and ventricular repolarization.
    A-935142
  • HY-172933
    Nav1.8 modulator 1
    		Modulator
    Nav1.8 modulator 1 (compound 1) is a potent Nav1.8 modulator. Nav1.8 modulator 1 has the potential for pain research.
    Nav1.8 modulator 1
  • HY-P1424A
    Lei-Dab7 TFA
    		Inhibitor 99.75%
    Lei-Dab7 TFA is a high affinity, selective KCa2.2 (SK2) channel blocker (Kd=3.8 nM). Lei-Dab7 TFA exhibits >200-fold selectivity for KCa2.2 over KCa2.1, KCa2.3, KCa3.1, Kv and Kir2.1. Lei-Dab7 TFA increases theta-burst responses and increases LTP in rat hippocampal slices in vitro.
    Lei-Dab7 TFA
  • HY-129146S
    Doxapram-d5 hydrochloride
    		Inhibitor 99.0%
    Doxapram-d5 hydrochloride is deuterium labeled Doxapram hydrochloride. Doxapram hydrochloride is a respiratory stimulant. Doxapram hydrochloride increases breathing rate and depth by acting on the brain's respiratory centers and peripheral chemoreceptors. Doxapram hydrochloride inhibits TASK-1, TASK-3, TASK-1/TASK-3 heterodimeric channel function with EC50s of 410 nM, 37 μM, 9 μM, respectively. Doxapram hydrochloride inhibits the Ca²⁺-activated potassium current (IC50 ≈ 13 μM) and Ca²⁺-independent potassium current (IC50 ≈ 20 μM) in type I cells of the carotid body. Doxapram hydrochloride significantly prolongs the effective refractory period of the atrium and has an anti-arrhythmic effect. Doxapram hydrochloride can be used for the study of respiratory depression such as post-anesthesia respiratory depression, chronic obstructive pulmonary disease and apnea of prematurity.
    Doxapram-d<sub>5</sub> hydrochloride
  • HY-125820
    Sigma-1 receptor antagonist 3
    		Inhibitor 99.47%
    Sigma-1 receptor antagonist 3 (compound135) is a potent and selective Sigma-1 (σ1) receptor antagonist with a Ki of 1.14 nM. Sigma-1 receptor antagonist 3 inhibits Human Ether-a-go-go-Related Gene (hERG) with an IC50 of 1.54 μM. Sigma-1 receptor antagonist 3 has the potential for the neuropathic pain.
    Sigma-1 receptor antagonist 3
  • HY-110110A
    VU0463271 quarterhydrate
    		Antagonist 98.05%
    VU0463271 quarterhydrate is a potent KCC2 antagonist, with an IC50 of 61 nM.
    VU0463271 quarterhydrate
  • HY-W516880
    Desmethylastemizole
    		Inhibitor 98.26%
    Desmethylastemizole (O-Demethylastemizole) , a metabolite of Astemizole (HY-12532), is a β-hematin (βH) inhibitor. Desmethylastemizole has an antiplasmodium activity against P. falciparum with IC50 of 0.12, 0.11 and 0.06  μM for Pf3D7, PfDd2, and PfItG strains, respectively. Desmethylastemizole is also a Histamine H1 receptor antagonist. Desmethylastemizole significantly blocks hERG K+ channels and also inhibits histone-lysine N-methyltransferase EZH2 activity. Desmethylastemizole can be used for long QT syndrome and malaria research.
    Desmethylastemizole
  • HY-113066
    Guanosine 5'-diphosphate
    		Activator
    Guanosine 5'-diphosphate (GDP) is a nucleoside diphosphate that activates adenosine 5'-triphosphate-sensitive K+ channel. Guanosine 5'-diphosphate is an iron mobilizer, which forms a complex with hepcidin to inhibit the hepcidin-ferroportin (FPN) interaction and modulates the IL-6/stat-3 pathway. Guanosine 5'-diphosphate ameliorates the Turpentine-induced anemia of inflammation (AI) in mice when combined with FeSO4. Guanosine 5'-diphosphate can be used in the research of AI.
    Guanosine 5'-diphosphate
  • HY-108585
    VU591 hydrochloride
    		Inhibitor ≥99.0%
    VU591 hydrochloride is a potent, selective renal outer medullary potassium channel (ROMK or Kir1.1) inhibitor, with an IC50 of 0.24 μM. VU591 hydrochloride can be used for neurological research with HY-108585A (the equivalent of VU591 hydrochloride).
    VU591 hydrochloride
  • HY-106688A
    Alinidine hydrobromide
    		Inhibitor 99.0%
    Alinidine (St-567) hydrobromide is a specific bradycardic agent. Alinidine hydrobromide reduces the slope of the diastolic depolarization in sinoatrial tissue and Purkinje fibers. Alinidine hydrobromide shows antiischemic and antiarrhythmic effects.
    Alinidine hydrobromide
  • HY-120960
    N-Arachidonoyl-L-serine
    		Agonist 98%
    N-Arachidonoyl-L-serine (ARA-S) is an endocannabinoid. N-Arachidonoyl-L-serine induces phosphorylation of Akt and MAPK in endothelial cells. N-Arachidonoyl-L-serine also induces endothelium-dependent vasodilation in isolated rat mesenteric and abdominal aortas. N-Arachidonoyl-L-serine exhibits neuroprotective effects after traumatic brain injury by reducing apoptosis. N-Arachidonoyl-L-serine promotes the opening of KV7.1/KCNE1 channels in mammalian cells and shortens the action potential duration in cardiomyocytes. N-Arachidonoyl-L-serine may be used in research on cardiovascular and cerebrovascular diseases and neurological disorders.
    N-Arachidonoyl-L-serine
  • HY-151891
    TASK-1-IN-1
    		Inhibitor 98.36%
    TASK-1-IN-1 is a potent and selective TASK-1 (Potassium Channel) inhibitor with an IC50 of 148 nM. TASK-1-IN-1 shows a reduced inhibition of TASK-3 channels (IC50 of 1750 nM) and not a significant effect on other K+ channels. TASK-1-IN-1 has anticancer effects.
    TASK-1-IN-1
  • HY-14188R
    Amiodarone hydrochloride (Standard)
    		Inhibitor
    Amiodarone (hydrochloride) (Standard) is the analytical standard of Amiodarone (hydrochloride). This product is intended for research and analytical applications. Amiodarone hydrochloride, a benzofuran-based Class III antiarrhythmic agent, inhibits WT outwardIhERG 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.
    Amiodarone hydrochloride (Standard)
  • HY-110234
    Topiramate D12
    		Activator 99.90%
    Topiramate D12 (McN 4853 D12) is a deuterium labeled Topiramate. Topiramate is a broad-spectrum antiepileptic agent. Topiramate is a GluR5 receptor antagonist. Topiramate produces its antiepileptic effects through enhancement of GABAergic activity, inhibition of kainate/AMPA receptors, inhibition of voltage-sensitive sodium and calcium channels, increases in potassium conductance, and inhibition of carbonic anhydrase.
    Topiramate D12
  • HY-120514
    JNc-440
    		98.04%
    JNc-440 is a potent antihypertensive agent. JNc-440 can enhance the interaction of TRPV4 and Ca2+-activated potassium channel 3 (KCa2.3) in endothelial cells. JNc-440 can also enhance vasodilation, and exerted antihypertensive effects in mice.
    JNc-440
  • HY-160083
    KCC2 Modulator-3
    		Modulator 98.84%
    KCC2 Modulator-3 (Example 54) is a KCC2 modulator with an EC50 of 0.253  μM. KCC2 Modulator-3 can be used for neurological disorders research, such as epilepsy, neuropathic pain and Rett's syndrme.
    KCC2 Modulator-3
Cat. No. Product Name / Synonyms Application Reactivity