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-15551A
    E-4031 free base
    		Inhibitor 98.92%
    E-4031 free base is a selective hERG potassium channel blocker for use in class III anti-arrhythmic studies.
    E-4031 free base
  • HY-P2785
    Phrixotoxin-1
    		Inhibitor
    Phrixotoxin 1, from the venom of the theraphosid spider Phrixotrichus auratus, is a specific peptide inhibitor of Kv4 potassium channel.
    Phrixotoxin-1
  • HY-P5931
    Spinoxin
    		Inhibitor 98.0%
    Spinoxin isolated from the venom of scorpion Heterometrus spinifer, is a 34-residue peptide neurotoxin cross-linked by four disulfide bridges. Spinoxin is a potent inhibitor of Kv1.3 potassium channel (IC50 = 63 nM), considering to be valid molecular targets in the diagnostics and therapy of various autoimmune disorders and cancers.
    Spinoxin
  • HY-117160
    4-trans-Hydroxy-glibenclamide
    		Inhibitor 99.0%
    rac-trans-4-hydroxy Glyburide is an active metabolite of the SUR1/Kir6.2 sulfonylurea inhibitor glyburide (HY-15206). It is formed from glyburide by the cytochrome P450 (CYP) isoforms CYP2C8 and CYP2C9. rac-trans-4-hydroxy Glyburide inhibits glyburide binding to rat brain synaptosomes at the high and low affinity sites of SUR1/Kir6.2 with IC50 values of 0.95 and 100 nM, respectively.
    4-trans-Hydroxy-glibenclamide
  • HY-B0267AS
    Oxybutynin-d11 chloride
    		Inhibitor
    Oxybutynin-d11 (chloride) is the deuterium labeled Oxybutynin chloride. Oxybutynin chloride is an anticholinergic agent, which inhibits vascular Kv channels in a concentration-dependent manner, with an IC50 of 11.51 μM.
    Oxybutynin-d<sub>11</sub> chloride
  • HY-17412S1
    Minocycline-d6 sulfate
    		Activator
    Minocycline-d6 sulfate is deuterated labeled Minocycline (HY-17412A). Minocycline is an orally active, potent and BBB-penetrated semi-synthetic tetracycline antibiotic. Minocycline is a hypoxia-inducible factor (HIF)-1α inhibitor. Minocycline shows anti-cancer, anti-inflammatory, and glutamate antagonist effects. Minocycline reduces glutamate neurotransmission and shows neuroprotective properties and antidepressant effects. Minocycline inhibits bacterial protein synthesis through binding with the 30S subunit of the bacterial ribosome, resulting in a bacteriostatic effect.
    Minocycline-d<sub>6</sub> sulfate
  • HY-134320
    8-Azido-ATP
    		Inhibitor
    8-Azido-ATP, a photoreactable nucleotide analog, is useful for the identification of proteins, such as DNA-dependent RNA polymerase. 8-Azido-ATP is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.
    8-Azido-ATP
  • HY-113066AR
    Guanosine 5'-diphosphate disodium salt (Standard)
    		Activator
    Guanosine 5'-diphosphate (disodium salt) (Standard) is the analytical standard of Guanosine 5'-diphosphate (disodium salt). This product is intended for research and analytical applications. Guanosine 5'-diphosphate (GDP) disodium salt, a purine nucleoside diphosphate, is interconverted to guanosine by the action of exonucleotidase and phosphorylation of nucleoside to guanine. Guanosine 5'-diphosphate disodium salt activates adenosine 5'-triphosphate-sensitive K+ channel and is used to study the kinetics and characteristics of GTPases such as those associated with G-protein coupled receptors (GPCR). Guanosine 5'-diphosphate disodium salt is a potential iron mobilizer, which prevents the Hepcidin (HY-P70400)-ferroportin interaction and modulates the interleukin-6 (IL-6)/stat-3 pathway. Elevated levels of guanosine 5’-diphosphate are associated with the pathogenesis of neurological diseases. Guanosine 5'-diphosphate disodium salt is promising for the research of inflammation, such as anemia of inflammation (AI).
    Guanosine 5'-diphosphate disodium salt (Standard)
  • HY-10015R
    PAP-1 (Standard)
    		Inhibitor
    PAP-1 (Standard) is the analytical standard of PAP-1. This product is intended for research and analytical applications. PAP-1 (5-(4-Phenoxybutoxy)psoralen) is a potent, selective, and orally active Kv1.3 blocker (EC50=2 nM). PAP-1 blocks Kv1.3 in a use-dependent manner and acts by preferentially binding to the C-type inactivated state of the channel. PAP-1 exhibits 23-fold selectivity over Kv1.5 (EC50=45 nM), and further displays 33- to 125-fold selectivity over all other Kv1-family channels. PAP-1 does not exhibit cytotoxic or phototoxic effects.
    PAP-1 (Standard)
  • HY-N8404
    Chlorahololide C
    		Inhibitor 98.0%
    Chlorahololide C, a lindenane sesquiterpenoid dimer, is isolated from Chloranthus holostegius. Chlorahololide C is a potent and selective potassium channel blocker, with an IC50 of 3.6 μM.
    Chlorahololide C
  • HY-101981S
    Uridine 5'-monophosphate-15N2
    		Activator 98.0%
    Uridine 5'-monophosphate-15N2 (5'-​Uridylic acid-15N2) is the 15N labeled Uridine 5'-monophosphate (HY-101981). Uridine 5'-monophosphate (5'-Uridylic acid) is an orally active mitochondrial ATP-dependent potassium channel activator that has a protective effect on the heart. Uridine 5'-monophosphate can promote the synthesis of CDP-choline and induce apoptosis in intestinal epithelial cells, which is beneficial for gut development and reduces diarrhea.
    Uridine 5'-monophosphate-<sup>15</sup>N<sub>2</sub>
  • HY-D0143R
    Quinine (Standard)
    		Inhibitor
    Quinine (Standard) is the analytical standard of Quinine. This product is intended for research and analytical applications. Quinine is an alkaloid derived from the bark of the cinchona tree, acts as an anti-malaria agent. Quinine is a potassium channel inhibitor that inhibits WT mouse Slo3 (KCa5.1) channel currents evoked by voltage pulses to +100 mV with an IC50 of 169 μM.
    Quinine (Standard)
  • HY-18172A
    (+)-KCC2 blocker 1
    		Inhibitor 98.68%
    (+)-KCC2 blocker 1 is a selective K+-Cl- cotransporter KCC2 blocker with an IC50 of 0.4 μM. (+)-KCC2 blocker 1 is a benzyl prolinate and a enantiomer of KCC2 blocker 1.
    (+)-KCC2 blocker 1
  • HY-15589R
    GW9508 (Standard)
    		Activator
    GW9508 (Standard) is the analytical standard of GW9508. This product is intended for research and analytical applications. GW9508 is a potent and selective G protein-coupled receptors FFA1 (GPR40) and GPR120 agonist with pEC50s of 7.32 and 5.46, respectively. GW9508 shows ~100-fold selectivity for GPR40 over GPR120. GW9508 is inactive against other GPCRs, kinases, proteases, integrins and PPARs. GW9508 is a glucose-sensitive insulin secretagogue and an ATP-sensitive potassium (KATP) channels opener. Anti-inflammatory and anti-atherosclerotic activities.
    GW9508 (Standard)
  • HY-107301
    Dehydrosoyasaponin I
    		Activator 99.56%
    Dehydrosoyasaponin I (Soyasaponin Be;DHS-I), a triterpene glycoside, is a potent and reversible calcium-activated potassium (maxi-K) channels activator.
    Dehydrosoyasaponin I
  • HY-17504BS2
    Rosuvastatin-13C,d3 sodium
    		Inhibitor
    Rosuvastatin-13C,d3 sodium is 13C and deuterated labeled Rosuvastatin sodium (HY-17504B). Rosuvastatin Sodium is a competitive HMG-CoA reductase (HMGCR) inhibitor, with an IC50 of 11 nM. Rosuvastatin Sodium potently blocks hERG current with an IC50 of 195 nM. Rosuvastatin Sodium reduces the expression of the mature hERG and the interaction of heat shock protein 70 (Hsp70) with the hERG protein. Rosuvastatin Sodium effectively lowers low-density lipoprotein (LDL) cholesterol, triglycerides, and C-reactive protein levels.
    Rosuvastatin-<sub>13</sub>C,d<sub>3</sub> sodium
  • HY-B0122S
    Topiramate-13C6
    		Activator 99.67%
    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-18063A
    ML252 hydrochloride
    		Inhibitor 98.5%
    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
  • HY-B0563S
    (Rac)-Ropivacaine-d7
    		99.60%
    (Rac)-Ropivacaine-d7 is the deuterium labeled (Rac)-Ropivacaine.
    (Rac)-Ropivacaine-d<sub>7</sub>
  • HY-15551R
    E-4031 (Standard)
    		Inhibitor
    E-4031 (Standard) is the analytical standard of E-4031. This product is intended for research and analytical applications. E-4031 is a selective hERG potassium channel blocker for use in class III anti-arrhythmic studies.
    E-4031 (Standard)
Cat. No. Product Name / Synonyms Application Reactivity