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

Potassium Channel

KcsA

Potassium Channel

Related Products

PDF 4.25 MB

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-B1114R
    Gliquidone (Standard)
    Gliquidone (Standard) is the analytical standard of Gliquidone. This product is intended for research and analytical applications. Gliquidone can bind to the pancreatic β-cells and increases insulin release to regulate blood glucose levels. Gliquidone significantly decreases LPS (HY-D1056)-induced proinflammatory responses and inhibits ERK/STAT3/NF-κB phosphorylation in BV2 microglial cells. Gliquidone can suppress microgliosis, microglial hypertrophy mediated by LPS, and proinflammatory cytokine COX-2 and IL-6 levels in murine model. Gliquidone also exhibits good anticancer activity in lung carcinoma cells. Gliquidone has antioxidant property. Gliquidone can be studied in research for type 2 diabetes and cancers.
    Gliquidone (Standard)
  • HY-172521
    (S)-(+)-Docosahexaenyl-2'-hydroxy-1'-propylamide
    		Inhibitor
    (S)-(+)-Docosahexaenyl-2'-hydroxy-1'-propylamide (N-Docosahexacnoylethanolamide(22:6)) is a DHEA homolog. (S)-(+)-Docosahexaenyl-2'-hydroxy-1'-propylamide blocks the Shaker-related voltage-gated potassium channels. (S)-(+)-Docosahexaenyl-2'-hydroxy-1'-propylamide can inhibit the Kv1.2 K+ currents with an IC50 of 1.5 μM.
    (S)-(+)-Docosahexaenyl-2'-hydroxy-1'-propylamide
  • HY-108163
    SB-237376 free base
    		Antagonist
    SB-237376 (free base) is a potassium and calcium channel blocker. SB-237376 (free base) can inhibit the rapidly activating delayed rectifier potassium current I(Kr) (IC50 is 0.42 μM), and at high concentrations, it blocks the L-type calcium current I(Ca,L). In the rabbit ventricular model, SB-237376 (free base) can induce early afterdepolarizations (EADs) at a concentration of 3 µM. Compared to other IKr inhibitors such as dl-sotalol, SB-237376 has a lower proarrhythmic risk. SB-237376 (free base) holds potential for research in the field of arrhythmia-related diseases.
    SB-237376 free base
  • HY-B2133R
    Cloperastine hydrochloride (Standard)
    		Inhibitor
    Cloperastine (hydrochloride) (Standard) is the analytical standard of Cloperastine (hydrochloride). This product is intended for research and analytical applications. Cloperastine hydrochloride inhibits the hERG K+ currents in a concentration-dependent manner with an IC50 value of 27 nM.
    Cloperastine hydrochloride (Standard)
  • HY-126106
    (BrMT)2
    		Inhibitor
    (BrMT)2 (compound 2) is a non-peptide snail toxin that slows down the activation of Kv1.1 channels.
    (BrMT)2
  • HY-B0567R
    Dequalinium Chloride (Standard)
    		Inhibitor
    Dequalinium (Chloride) (Standard) is the analytical standard of Dequalinium (Chloride). This product is intended for research and analytical applications. Dequalinium chloride is an Apamin (HY-P0256)-sensitive potassium channel selective blocker. Dequalinium chloride is a cationic, lipophilic mitochondrial poison. Dequalinium chloride is also an antagonist pf α7 nAChR, and an anti-microbial antiseptic agent with a broad bactericidal and fungicidal activity.
    Dequalinium Chloride (Standard)
  • HY-N0221R
    Daurisoline (Standard)
    		Inhibitor
    Daurisoline (Standard) is the analytical standard of Daurisoline. This product is intended for research and analytical applications. Daurisoline is a bis-benzylisoquinoline alkaloid that can be isolated from Menispermum dauricum and Rhizoma Menispermi. Daurisoline exerts a blocking effect on hERG and has antiarrhythmic effects. Daurisoline is a potent autophagy blocker that can be used for the research of cancer.
    Daurisoline (Standard)
  • HY-126038
    BTS 39542
    		Inhibitor
    BTS 39542 is an orally active inhibitor for Na+ K+ Cl cotransport system, that exhibits diuretic activity, and can be used in hypertension and edema research.
    BTS 39542
  • HY-17504AS1
    Rosuvastatin-d6
    		Inhibitor
    Rosuvastatin-d6 (ZD 4522-d6) is deuterium labeled Rosuvastatin. Rosuvastatin (ZD 4522) is a competitive HMG-CoA reductase inhibitor with an IC50 of 11 nM. Rosuvastatin potently blocks hERG current with an IC50 of 195 nM, delayed cardiac repolarization, and thereby prolonged action potential durations (APDs) and corrected QT interval (QTc) intervals. Rosuvastatin reduces the expression of the mature hERG and the interaction of heat shock protein 70 (Hsp70) with the hERG protein. Rosuvastatin effectively lowers low-density lipoprotein (LDL) cholesterol, triglycerides, and C-reactive protein levels.
    Rosuvastatin-d<sub>6</sub>
  • HY-13100A
    (S)-PF 03716556
    (S)-PF 03716556 is a K+-competitive acid blocker with gastric acid pump inhibitory activity. (S)-PF 03716556 can be used to inhibit disease states mediated by acid pump inhibitory activity.
    (S)-PF 03716556
  • HY-B0122S
    Topiramate-13C6
    		Activator
    Topiramate-13C6 (McN 4853-13C6) is the 13C labeled isotope of Topiramate (HY-B0122). Topiramate (McN 4853) 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-<sup>13</sup>C<sub>6</sub>
  • HY-B0380R
    Trimebutine (Standard)
    		Inhibitor
    Trimebutine (Standard) is the analytical standard of Trimebutine (HY-B0380). This product is intended for research and analytical applications. Trimebutine is a multi-target inhibitor and opioid receptor agonist with antimuscarinic activity. Trimebutine inhibits L-type Ca2+ channels and large-conductance calcium-activated potassium channels (BKCa channels), thereby inhibiting extracellular calcium influx and potassium ion efflux. Trimebutine also targets Toll-like receptors, inhibits Toll-like receptor 2/4/7/8/9 signals, and inhibits LPS-induced IRAK1 activation, as well as ERK1/2, JNK and NF-κB activation, thereby exerting anti-inflammatory effects. Trimebutine also induces tumor cell apoptosis by inhibiting the AKT/ERK pathway. Trimebutine also inhibits excessive contraction of smooth muscle and can be used in the study of gastrointestinal disorders such as irritable bowel syndrome (IBS).
    Trimebutine (Standard)
  • HY-119322R
    Tifenazoxide (Standard)
    		Activator
    Tifenazoxide (Standard) is the analytical standard of Tifenazoxide. This product is intended for research and analytical applications. Tifenazoxide (NN414) is a potent, orally active and SUR1/Kir6.2 selective KATP channels opener. Tifenazoxide has antidiabetic effect, can inhibit glucose stimulated insulin release in vitro and in vivo, and has a beneficial effect on glucose homeostasis.
    Tifenazoxide (Standard)
  • HY-134953
    Mephetyl tetrazole
    		Inhibitor
    Mephetyl tetrazole is a potassium channel Kv1.5 blocker, with an IC50 of 330 nM. Mephetyl tetrazole can be used for the research of cancer.
    Mephetyl tetrazole
  • HY-B1751R
    Quinidine (15% dihydroquinidine) (Standard)
    		Inhibitor
    Quinidine (15% dihydroquinidine) (Standard) is the analytical standard of Quinidine (15% dihydroquinidine). This product is intended for research and analytical applications. Quinidine (15% dihydroquinidine) is an antiarrhythmic agent. Quinidine is a potent, orally active, selective cytochrome P450db inhibitor. Quinidine is also a K+ channel blocker with an IC50 of 19.9 μM, and can induce apoptosis. Quinidine can be used for malaria research.
    Quinidine (15% dihydroquinidine) (Standard)
  • HY-14149R
    Cisapride (Standard)
    		Inhibitor
    Cisapride (Standard) is the analytical standard of Cisapride. This product is intended for research and analytical applications. Cisapride (R 51619) is an orally active 5-HT4 receptor agonist with an EC50 value of 140 nM. Cisapride is a hERG blocker with an IC50 value of 9.4 nM. Cisapride is a gastroprokinetic agent that stimulates gastrointestinal motor activity.
    Cisapride (Standard)
  • HY-171469
    SKP-451
    		Agonist
    SKP-451 is an ATP-sensitive potassium (K+) channel agonist. SKP-451 activates the ATP-sensitive K+ channels, promotes the efflux of K+, causes membrane hyperpolarization, and inhibits the influx of Ca2+, thereby relaxing the vascular smooth muscle. SKP-451 relaxs the canine coronary artery, rabbit basilar artery, and vertebral artery. SKP-451 also reduces the mean arterial blood pressure of conscious spontaneously hypertensive rats (SHR). SKP-451 is promising for research of cardiovascular diseases.
    SKP-451
  • HY-W010451R
    1,2,4-Trihydroxybenzene (Standard)
    		Activator
    1,2,4-Trihydroxybenzene (Hydroxyhydroquinone) (Standard) is the analytical standard of 1,2,4-Trihydroxybenzene (HY-W010451). This product is intended for research and analytical applications. 1,2,4-Trihydroxybenzene (Hydroxyhydroquinone) is an ER stress inducer that targets proteins such as PKR-like ER kinase PERK to induce cytotoxicity. 1,2,4-Trihydroxybenzene selectively activates eIF2α phosphorylation, activates the PERK-eIF2α signaling pathway and induces stress granule formation. 1,2,4-Trihydroxybenzene subsequently exacerbates oxidative stress and causes DNA double-strand breaks, destroying organelles such as mitochondria and ER, and inducing cell death. 1,2,4-Trihydroxybenzene also has the potential to exhibit anti-tumor effect, increase blood pressure, and relieve spasm.
    1,2,4-Trihydroxybenzene (Standard)
  • HY-12532R
    Astemizole (Standard)
    		Inhibitor
    Astemizole (Standard) is the analytical standard of Astemizole. This product is intended for research and analytical applications. Astemizole (R 43512), a second-generation antihistamine agent 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 (Standard)
  • HY-18063A
    ML252 hydrochloride
    		Inhibitor
    ML252 hydrochloride is a selective inhibitor of KCNQ2 (Kv7.2) channel with 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 hydrochloride 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 hydrochloride shows highly brain penetrant.
    ML252 hydrochloride
Cat. No. Product Name / Synonyms Application Reactivity