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-W050000R
    OR-1855 (Standard)
    		Activator
    Tanshinone IIA sulfonate (sodium) (Standard) is the analytical standard of Tanshinone IIA sulfonate (sodium). This product is intended for research and analytical applications. Tanshinone IIA sulfonate (sodium) is a derivative of tanshinone IIA, which acts as an inhibitor of store-operated Ca2+ entry (SOCE), and is used to treat cardiovascular disorders.
    OR-1855 (Standard)
  • HY-N1934R
    Dihydroberberine (Standard)
    		Inhibitor
    Dihydroberberine (Standard) is the analytical standard of Dihydroberberine. This product is intended for research and analytical applications. Dihydroberberine is a naturally occurring isoquinoline alkaloid with anti-inflammatory, anti-atherosclerotic, hypolipidemic and anti-tumor activities. Dihydroberberine inhibits the human ether-related gene (hERG) channel and significantly reduces the expression of heat shock protein 90 (Hsp90) and its interaction with hERG. Dihydroberberine also blocks the TLR4/MyD88/NF-κB signaling pathway to reduce pro-inflammatory cytokines and immunoglobulins, and has inhibitory effects on DSS (HY-116282C)-induced experimental colitis. Dihydroberberine also increases the sensitivity of lung cancer to sunitinib (HY-10255A), with synergistic efficacy.
    Dihydroberberine (Standard)
  • HY-118628A
    BML264
    		Agonist
    BML264 ((E)-N-(p-amylcinnamoyl) anthranilic acid) is an agonist for TREK-1. BML264 can be used to study diseases associated with TASK1 dysfunction.
    BML264
  • HY-122560
    VU0134992
    		Inhibitor
    VU0134992 is the first subtype-preferring, orally active and selective Kir4.1 potassium channel pore blocker, with an IC50 of 0.97 µM. VU0134992 is 9-fold selective for homomeric Kir4.1 over Kir4.1/5.1 concatemeric channels (IC50=9 µM) at -120 mV.
    VU0134992
  • HY-P5156
    BDS-I
    		Inhibitor
    BDS-I known as blood depressing substance, is a marine toxin which can be extracted from Anemonia sulcata. BDS-I is a specific inhibitor of Potassium Channel, targeting to Kv3.4. BDS-I inhibits Aβ1-42-induced enhancement of KV3.4 activity, caspase-3 activation, and abnormal nuclear morphology of NGF-differentiated PC-12 cells. BDS-I reverts the Aβ peptide-induced cell death.
    BDS-I
  • HY-117403
    AB-FUBICA
    		Activator
    AB-FUBICA (Compound 13) is a CB1 and CB2 receptor agonist that activates G-protein coupled inwardly rectifying potassium channels (GIRK) by binding to CB1 and CB2 receptors, displaying notable cannabinoid-like activity. AB-FUBICA has EC50 values of 21 nM for CB1 and 15 nM for CB2. AB-FUBICA may be suitable for studying pain management, neurodegenerative diseases, and inflammation-related mechanisms.
    AB-FUBICA
  • HY-B1194A
    Tetramisole
    		Agonist
    Tetramisole is an orally active, selective inward rectifier potassium channel agonist with an EC50 of approximately 30 μM for the Kir2.1 subunit. Tetramisole is also an anti-nematode agent that blocks neuromuscular transmission by non-competitive depolarization. Tetramisole 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 can be used in cardiac electrophysiology research and research related to myocardial ischemia and heart failure.
    Tetramisole
  • HY-14924
    Inakalant
    		Inhibitor
    Inakalant is an atrial specific potassium channel blocker with antiarrhythmic activity. Inakalant works by selectively blocking potassium channels in heart cells, thereby prolongs the action potential duration (APD) of cardiomyocytes and increases the effective refractory period of the atria and ventricles, which helps to terminate and prevent the occurrence of arrhythmias such as atrial fibrillation (AF). Inakalant can be used in the study of arrhythmia and cardiac electrophysiology.
    Inakalant
  • HY-117275A
    Meclofenamic acid sodium hydrate
    		Inhibitor
    Meclofenamic acid (Meclofenamate) sodium hydrate is a non-steroidal anti-inflammatory agent. Meclofenamic acid sodium hydrate is a highly selective FTO (fat mass and obesity-associated) enzyme inhibitor. Meclofenamic acid sodium hydrate competes with FTO binding for the m(6)A-containing nucleic acid. Meclofenamic acid sodium hydrate is a non-selective gap-junction blocker. Meclofenamic acid sodium hydrate inhibits hKv2.1 and hKv1.1, with IC50 values of 56.0 and 155.9 μM, respectively.
    Meclofenamic acid sodium hydrate
  • HY-W013727
    UK-78282 hydrochloride
    		Inhibitor 99.82%
    UK-78282, a novel piperidine, potent and selective Kv1.3 blocker with an IC50 of 200 nM. UK-78,282 effectively suppresses human T-lymphocyte activation in vitro. UK-78,282 binds to residues at the inner surface of the channel overlapping the site of action of verapamil.
    UK-78282 hydrochloride
  • HY-13710
    Dimethindene
    		Inhibitor
    Dimethindene is a potent, selective histamine H1 antagonist. Dimethindene impairs cutaneous wound healing (WH). Dimethindene can block K+ currents.
    Dimethindene
  • HY-W037817
    Dimethyl L-glutamate
    		Inhibitor
    Dimethyl L-glutamate (Dimethyl glutamate), a membrane-permeable analog of Glutamate, can stimulate insulin release induced by Glucose. Dimethyl L-glutamate suppresses the KATP channel activities. Dimethyl L-glutamate inhibits E. gracilis growth and causes abnormal cell division. Dimethyl L-glutamate can be used in the research of diabetes, glucose transport, phosphorylation, and further metabolism.
    Dimethyl L-glutamate
  • HY-P1282A
    Agitoxin-2 TFA
    		Inhibitor
    Agitoxin-2 TFA is a K+ channel inhibitor, with IC50 values of 201 pM and 144 pM for mKV1.3 and mKV1.1, respectively).
    Agitoxin-2 TFA
  • HY-110234R
    Topiramate D12 (Standard)
    		Activator
    Topiramate D12 (Standard) is the analytical standard of Topiramate D12. This product is intended for research and analytical applications. 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 (Standard)
  • HY-P5154
    Tamapin
    		Antagonist
    Tamapin is a venom peptide, targeting to small conductance Ca(2+)-activated K(+) (SK) channels. Tamapin is a selctive blocker of SK2 (Potassium Channel). Tamapin inhibits SK channel-mediated currents in pyramidal neurons of the hippocampus. Tamapin can be isolated from the Indian red scorpion (Mesobuthus tamulus).
    Tamapin
  • HY-P3656
    Kaliotoxin (1-37)
    		Inhibitor
    Kaliotoxin (1-37) is a toxin from the scorpion Artdroctonus mauretanicus mauretanicus. Kaliotoxin (1-37) is a potent calcium-dependent potassium channel blocker.
    Kaliotoxin (1-37)
  • HY-161092A
    KIO-301 chloride (hydrochloride)
    		Inhibitor 99.61%
    KIO-301 chloride hydrochloride is an azobenzene photoswitchable compound that blocks voltage-gated ion channels, including hyperpolarization-activated cyclic nucleotide gating (HCN, during exposure to visible light) ) and voltage-gated potassium channels (voltage-gated potassium channels).
    KIO-301 chloride (hydrochloride)
  • HY-19044
    SKF 95601
    SKF 95601 is a modulator of small conductive Ca2+-activated K+ channels with anti-atrial fibrillation (AF) activity. SKF 95601 may play a role in inhibiting atrial fibrillation by affecting the interaction between intracellular Ca2+ concentration and membrane potential. SKF 95601 has become a potential inhibitory target against atrial fibrillation due to its significant expression in various species, especially human atria.
    SKF 95601
  • HY-P5786
    Heteropodatoxin-1
    		Inhibitor
    Heteropodatoxin-1 (HpTx1), a spider peptide toxin, is a Kv4.2 current inhibitor. Heteropodatoxin-1 also inhibits Nav1.7 and activates Nav1.9 but does not affect Nav1.8.
    Heteropodatoxin-1
  • HY-117275R
    Meclofenamic acid (Standard)
    		Inhibitor
    Meclofenamic acid (Standard) is the analytical standard of Meclofenamic acid. This product is intended for research and analytical applications. Meclofenamic acid (Meclofenamate) is a non-steroidal anti-inflammatory agent. Meclofenamic acid is a highly selective FTO (fat mass and obesity-associated) enzyme inhibitor. Meclofenamic acid competes with FTO binding for the m(6)A-containing nucleic acid. Meclofenamic acid is a non-selective gap-junction blocker. Meclofenamic acid inhibits hKv2.1 and hKv1.1, with IC50 values of 56.0 and 155.9 μM, respectively.
    Meclofenamic acid (Standard)
Cat. No. Product Name / Synonyms Application Reactivity