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-P3111
    Slotoxin
    Inhibitor
    Slotoxin, a peptide from Centruroides noxius Hoffmann scorpion venom, blocks high conductance calcium-activated potassium channel, with Kd of 1.5 nM[1].
    Slotoxin
  • HY-17504C
    (3R,5R)-Rosuvastatin
    Inhibitor
    (3R,5R)-Rosuvastatin is the (3R,5R)-enantiomer of Rosuvastatin. Rosuvastatin is a competitive HMG-CoA reductase inhibitor with an IC50 of 11 nM. Rosuvastatin potently blocks human ether-a-go-go related gene (hERG) current with an IC50 of 195 nM. Rosuvastatin reduces the expression of the mature hERG and the interaction of heat shock protein 70 (Hsp70) with the hERG protein. Rosuvastatin is very effective in lowering low-density lipoprotein (LDL) cholesterol, triglycerides, and C-reactive protein levels.
    (3R,5R)-Rosuvastatin
  • HY-N6776R
    Penitrem A (Standard)
    Antagonist
    Prenylamine (lactate) (Standard) is the analytical standard of Prenylamine (lactate). This product is intended for research and analytical applications. Prenylamine lactate is a calcium-modulating protein (CaM) antagonist that inhibits CaM-dependent enzymes and can slowly relax smooth muscle preparations. The effect of Prenylamine lactate on smooth muscle is not inhibited by the calcium agonist Bay K 8644 (HY-10588). Reports suggest that under low heart rate conditions, Prenylamine seems to enhance voltage-dependent transmembrane calcium currents.
    Penitrem A (Standard)
  • HY-W703629
    Acetohexamide-d11
    Acetohexamide-d11 is the deuterium labeled Acetohexamide (HY-B0881). Acetohexamide is a first-generation sulfonylurea agent used in research related to type 2 diabetes; it stimulates the pancreas to secrete insulin.Acetohexamide inhibits ATP-sensitive potassium channels in the β cells of the pancreas.
    Acetohexamide-d<sub>11</sub>
  • HY-16489
    Terodiline
    Inhibitor
    Terodiline, an antispasmodic agent, blocks hERG current with the IC50 of 375 nM. Terodiline has both anticholinergic and calcium antagonist properties, and effectively reduces abnormal bladder contractions caused by detrusor instability. Terodiline can be used for the research of urinary incontinence.
    Terodiline
  • HY-B1482AS
    Mesoridazine-d3
    Mesoridazine-d3 is the deuterium labeled Mesoridazine (HY-B1482A). Mesoridazine (TPS-23) , a metabolite of Thioridazine (HY-B0965A), acts as an orally active phenothiazine antipsychotic agent. Mesoridazine is a potent and rapid open-channel blocker of human ether-a-go-go related gene (hERG) channels and blocks hERG currents with an IC50 of 550 nM (at 0 mV) in human embryonic kidney 293 cells.Mesoridazine can be used for the research of schizophrenia, as well as certain other psychiatric disorders.
    Mesoridazine-d<sub>3</sub>
  • HY-W723322
    Ethyl tosylcarbamate-d7
    Ethyl tosylcarbamate-d7 is the deuterium labeled Ethyl tosylcarbamate (HY-135337). Ethyl tosylcarbamate is an intermediate in the synthesis of Gliclazide (G409877). Gliclazide is a whole-cell beta-cell ATP-sensitive potassium currents blocker with an IC50 of 184 nM.
    Ethyl tosylcarbamate-d<sub>7</sub>
  • HY-P1073
    ProTx-I
    Inhibitor
    ProTx-I, a venom toxin of the tarantula Thrixopelma pruriens, is a potent, selective CaV3.1 channel blocker with IC50 values of 0.2 μM and 31.8 μM for hCaV3.1 and hCaV3.2 respectively. ProTx-I is also a potent blocker for voltage-gated Na+ channels and inhibits KV 2.1 channels.
    ProTx-I
  • HY-160082
    KCC2 Modulator-2
    Modulator
    KCC2 Modulator-2 (example 53) is a KCC2 modulator with an EC50 of 0.215 μM. KCC2 Modulator-2 can be used in the study of neurological disorders.
    KCC2 Modulator-2
  • 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-108327
    PF-05020182
    Activator
    PF-05020182 is an orally active opener for Kv7 channel, that activates human Kv7.2/7.3, Kv7.4 and Kv7.3/7.5 with EC50 of 334, 625 and 588 nM, respectively. PF-05020182 exhibits anticonvulsant activity in rats corneal electric shock-induced tonic seizure (MES) models. PF-05020182 is blood-brain barrier (BBB) penetrable.
    PF-05020182
  • HY-P3316
    OSK-1
    Inhibitor
    OSK-1 is a potent Kv channel blocker with IC50s of of 0.6 nM, 5.4 nM, 0.014 nM for Kv1.1, Kv1.2 and Kv1.3, respectively. OSK1 is a moderate blocker of Ca2+-activated KCa3.1 channel with an IC50 of 225 nM. OSK-1 belongs to α-KTx3 toxins and is used as a immunosuppressive agent.
    OSK-1
  • HY-17001AR
    Flupirtine (Standard)
    Activator
    Flupirtine (Standard) is the analytical standard of Flupirtine. This product is intended for research and analytical applications. 0
    Flupirtine (Standard)
  • HY-130070
    QO-40
    Activator 98.77%
    QO-40, a pyrazolo[1,5-a]pyrimidine-7(4H)-one (PPO) derivative, is a KCNQ2/KCNQ3 K+ channels activator with an EC50 of 6.94 μM. QO-40 stimulated Ca2+-activated K+ current (IK(Ca)) with an EC50 value of 2.3 μM in pituitary GH3 lactotrophs.
    QO-40
  • HY-149432
    NDNA3
    NDNA3 (compound 14) is a selective inhibitor of Hsp90α (IC50: 0.51 μM). NDNA3 is a permanently charged analog with low membrane permeability and low toxicity to Ovcar-8 (IC50: 12.66 μM) and MCF-10A (IC50: 11.72 μM) cells. NDNA3 prevents disruption of hERG channel maturation without generating a heat shock response or causing degradation of Hsp90α-dependent client proteins.
    NDNA3
  • HY-117283
    rel-Aprikalim
    Control
    rel-Aprikalim (rel-RP 52891) is the relative configuration of Aprikalim (HY-121183). Aprikalim (RP 52891), a potassium channel opener (KCO), activates ATP-sensitive K+ (KATP) channels in guinea pig ventricular myocytes.
    rel-Aprikalim
  • HY-159958
    KNa1.1-IN-2
    Antagonist
    KNa1.1-IN-2 (Compound Z05) is a selective KNa1.1 channel inhibitor with blood-brain barrier penetration, particularly effective against the hERG channel. KNa1.1-IN-2 works by binding to the KNa1.1 channel and blocking the channel activity induced by Gain-of-function (GOF) mutations, effectively intervening in KCNT1-related epilepsy. Additionally, KNa1.1-IN-2 inhibits the GOF mutant Y796H. KNa1.1-IN-2 holds promise for research into KCNT1-related epilepsy disorders.
    KNa1.1-IN-2
  • HY-170511
    GLP-1 receptor agonist 15
    Inhibitor
    GLP-1 receptor agonist 15 (Example 4) is a GLP receptor agonist with an EC50 of 0.74 nM. The IC50 for the hERG potassium ion channel is 10.1 μM. GLP-1 receptor agonist 15 can be used for research in the field of diabetes.
    GLP-1 receptor agonist 15
  • HY-153219A
    P-CAB agent 2
    Inhibitor ≥98.0%
    P-CAB agent 2 is a potent and orally active potassium-competitive acid blocker and a gastric acid secretion inhibitor. P-CAB agent 2 inhibits H+/K+-ATPase activity with an IC50 value of <100 nM. P-CAB agent 2 inhibits the hERG potassium channel with an IC50 value of 18.69 M. P-CAB agent 2 shows no acute toxicity and inhibits histamine (HY-B1204)-induced gastric acid secretion.
    P-CAB agent 2
  • HY-N7126R
    Citronellal (Standard)
    Citronellal (Standard) is the analytical standard of Citronellal. This product is intended for research and analytical applications.Citronellal is a monoterpene that can be found in the essential oils in various aromatic species of plants, with antiinflammatory and antinociceptive properties. Citronellal attenuates mechanical nociception, mediated in part by the NO-cGMP-ATP-sensitive K+ channel pathway. Citronellal induces reduction of spontaneuous activity, ataxia, analgesia, and sedation in vivo. Citronellal can attenuate mechanical nociception response in mouse model.
    Citronellal (Standard)
Cat. No. Product Name / Synonyms Application Reactivity