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

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.

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-15206S
    Glyburide-d11
    Inhibitor 99.39%
    Glyburide-d11 is the deuterium labeled Glibenclamide. Glibenclamide (Glyburide) is an orally active ATP-sensitive K+ channel (KATP) inhibitor and can be used for the research of diabetes and obesity. Glibenclamide inhibits P-glycoprotein. Glibenclamide directly binds and blocks the SUR1 subunits of KATP and inhibits the cystic fibrosis transmembrane conductance regulator protein (CFTR). Glibenclamide interferes with mitochondrial bioenergetics by inducing changes on membrane ion permeability. Glibenclamide can induce autophagy.
    Glyburide-d<sub>11</sub>
  • HY-113066S
    Guanosine 5'-diphosphate-15N5 dilithium
    Activator 98.20%
    Guanosine 5'-diphosphate-15N5 (GDP-15N5) dilithium is 15N labeled Guanosine 5'-diphosphate (HY-113066). Guanosine 5'-diphosphate (GDP) is a nucleoside diphosphate that activates adenosine 5'-triphosphate-sensitive K+ channel. Guanosine 5'-diphosphate is a potential iron mobilizer, which prevents the hepcidin-ferroportin interaction and modulates the interleukin-6 (IL-6)/stat-3 pathway. Guanosine 5'-diphosphate can be used in the research of inflammation, such as anemia of inflammation (AI).
    Guanosine 5'-diphosphate-<sup>15</sup>N<sub>5</sub> dilithium
  • HY-132201
    MK-8153
    Inhibitor
    MK-8153 is a potent, selective and orally active inhibitor of renal outer medullary potassium channel (ROMK), with IC50s of 5 nM, 34 μM for ROMK electrophysiology (EP) and hERG EP, respectively. MK-8153 can be used as the diuretic/atriuretic.
    MK-8153
  • HY-14188S
    Amiodarone-d4 hydrochloride
    Inhibitor 99.58%
    Amiodarone-d4 (hydrochloride) is the deuterium labeled Amiodarone hydrochloride. 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-d<sub>4</sub> hydrochloride
  • HY-12532S
    Astemizole-d3
    Astemizole-d3 is the deuterium labeled Astemizole. Astemizole (R 43512), a second-generation antihistamine drug 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.
    Astemizole-d<sub>3</sub>
  • HY-N5006
    Guanfu base G
    Inhibitor 99.91%
    Guanfu base G is an antiarrhythmic alkaloid isolated from Aconitum coreanum. Guanfu base G inhibits HERG channel current with an IC50 of 17.9 μM.
    Guanfu base G
  • HY-14848A
    Naluzotan hydrochloride
    Inhibitor 99.63%
    Naluzotan hydrochloride is a novel, potent, and selective amidosulfonamide 5-HT1A agonist with IC50 and Ki of appr 20 nM and 5.1 nM, used for the treatment of anxiety and depression; Also a weak hERG K+ channel blocker, with IC50 of 3800 nM.
    Naluzotan hydrochloride
  • HY-N9854
    Icariside E4
    Modulator 98.13%
    Icariside E4 is an antinociceptive agent, and can be isolated from Tabebuia roseo-alba. Icariside E4 has peripheral analgesic activity by ATP-sensitive K+ channel-dependent mechanisms. Icariside E4 also has anti-oxidant, anti-Alzheimer and anti-inflammatory effects.
    Icariside E4
  • HY-119101
    AZD-5672
    AZD-5672 is an orally active, potent, and selective CCR5 antagonist (IC50=0.32 nM). AZD-5672 shows moderate activity against the hERG ion channel (binding IC50=7.3 μM). AZD5672 is a substrate of human P-gp, and inhibits P-gp-mediated digoxin transport (IC50=32 μM). AZD-5672 can be used for the research of rheumatoid arthritis.
    AZD-5672
  • HY-B0437AS
    Sotalol-d6 hydrochloride
    Inhibitor 98.01%
    Sotalol-d6 (hydrochloride) is a deuterium labeled Sotalol hydrochloride. Sotalol hydrochloride is an orally active, non-selective competitive β-adrenergic receptor blocker. Sotalol hydrochloride is a potent antiarrhythmic agent that can be used for the research of pediatric arrhythmias. Sotalol hydrochloride blocks β-receptors, and potassium KCNH2 channels.
    Sotalol-d<sub>6</sub> hydrochloride
  • HY-N1933
    Allocryptopine
    Inhibitor 99.74%
    Allocryptopine, a derivative of tetrahydropalmatine, is extracted from Macleaya cordata (Thunb.) Pers. Papaveraceae. Allocryptopine has antiarrhythmic effects and potently blocks human ether-a-go-go related gene (hERG) current.
    Allocryptopine
  • HY-P5154A
    Tamapin TFA
    Antagonist 98.79%
    Tamapin TFA is a venom peptide, targeting to small conductance Ca(2+)-activated K(+) (SK) channels. Tamapin TFA is a selctive blocker of SK2 (Potassium Channel). Tamapin TFA inhibits SK channel-mediated currents in pyramidal neurons of the hippocampus. Tamapin TFA can be isolated from the Indian red scorpion (Mesobuthus tamulus).
    Tamapin TFA
  • HY-123264
    RL648_81
    Inhibitor 99.20%
    RL648_81 is a specific KQT-like subfamily 2/3 (KCNQ2/3) activator with an EC50 of 190 nM. RL648_81 robustly shifts the V1/2 of KCNQ2/3 channels towards hyperpolarized potentials.RL648_81 does not shift the V1/2 of either KCNQ4 or KCNQ5.RL648_81 has?the?potential?for?neurologic disorders associated with neuronal hyperexcitability research.
    RL648_81
  • 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-108574
    CP 339818 hydrochloride
    Inhibitor 99.61%
    CP 339818 hydrochloride is a non-peptide Kv1.3 channel (IC50 = 200 nM) and Kv1.4 channel blocker. CP 339818 hydrochloride inhibits HCN channel with IC50s of 18.9 μM and 43.4 μM against HCN1 and HCN4 (high Cl-). CP 339818 hydrochloride has significantly weaker blocking effects on Kv1.1, Kv1.2, Kv1.5, Kv1.6, Kv3.1-4, and Kv4.2 channels. CP 339818 hydrochloride selectively blocked Kv1.3, thereby inhibiting the activation process of human T cells. CP 339818 hydrochloride can be used to study the physiological functions of HCN and Kv channels.
    CP 339818 hydrochloride
  • HY-B1109R
    N-Acetylprocainamide (Standard)
    Inhibitor
    Cimetidine (hydrochloride) (Standard) is the analytical standard of Cimetidine (hydrochloride). This product is intended for research and analytical applications. Cimetidine (SKF-92334) hydrochloride is an orally active and inverse histamine H2 receptor antagonist with a Ki of 0.6 μM. Cimetidine hydrochloride is a gastric acid reducer, and can be used for duodenal and gastric ulcers research. Cimetidine hydrochloride has anti-cancer and anti-inflammatory activity.
    N-Acetylprocainamide (Standard)
Cat. No. Product Name / Synonyms Application Reactivity