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-113066
    Guanosine 5'-diphosphate
    Activator
    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
  • HY-108585
    VU591 hydrochloride
    Inhibitor ≥99.0%
    VU591 hydrochloride is a potent, selective renal outer medullary potassium channel (ROMK or Kir1.1) inhibitor, with an IC50 of 0.24 μM. VU591 hydrochloride can be used for neurological research with HY-108585A (the equivalent of VU591 hydrochloride).
    VU591 hydrochloride
  • HY-106688A
    Alinidine hydrobromide
    Inhibitor ≥99.0%
    Alinidine (St-567) hydrobromide is a specific bradycardic agent. Alinidine hydrobromide reduces the slope of the diastolic depolarization in sinoatrial tissue and Purkinje fibers. Alinidine hydrobromide shows antiischemic and antiarrhythmic effects.
    Alinidine hydrobromide
  • HY-14188R
    Amiodarone hydrochloride (Standard)
    Inhibitor
    Amiodarone (hydrochloride) (Standard) is the analytical standard of Amiodarone (hydrochloride). This product is intended for research and analytical applications. 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 hydrochloride (Standard)
  • HY-110234
    Topiramate D12
    Activator 99.90%
    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
  • HY-120514
    JNc-440
    98.04%
    JNc-440 is a potent antihypertensive agent. JNc-440 can enhance the interaction of TRPV4 and Ca2+-activated potassium channel 3 (KCa2.3) in endothelial cells. JNc-440 can also enhance vasodilation, and exerted antihypertensive effects in mice.
    JNc-440
  • HY-108577A
    XE991
    Inhibitor 99.62%
    XE 991 dihydrochloride, a Kv7 (KCNQ) channels blocker, potently inhibits Kv7.1 (KCNQ1), Kv7.2 (KCNQ2), Kv7.2 + Kv7.3 (KCNQ3) channel, and M-current with IC50s of 0.75 μM, 0.71 μM, 0.6 μM, and 0.98 μM, respectively.
    XE991
  • HY-161158
    KCNK13-IN-1
    Antagonist 98.3%
    KCNK13-IN-1 (example 71), a KCNK13 antagonist, is an anti-inflammatory agent, with an IC50 of <200 nM for IL-1 β.
    KCNK13-IN-1
  • HY-103067
    A1899
    99.72%
    A1899 is a potent and highly selective blocker of the K2P channel TASK-1. A1899 has IC50 values of 35.1 nM and 7 nM for TASK-1 channels expressed in oocytes and CHO cells, respectively. A1899 is also an IKur blocker that can be used for the research of cardiovascular diseases.
    A1899
  • HY-113066S2
    Guanosine 5'-diphosphate-d13 dilithium
    Activator
    Guanosine 5'-diphosphate-d13 (GDP-d13) dilithium is deuterium 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-d<sup>13</sup> dilithium
  • HY-117931
    NS004
    Activator 99.67%
    NS004 is a potassium (BK) channel activator that increases Iberiotoxin (HY-P0190) or Tetraethylammonium (HY-B1793)-sensitive whole-cell efflux currents. NS004 also significantly increased the activity of individual GH3 cell BK channels and rat brain BK channels reorganized into planar lipid bilayers, causing an increase in channel mean open time, a decrease in intermittent time, and an increase in channel voltage/calcium sensitivity.
    NS004
  • HY-148144A
    Clobutinol hydrochloride
    Inhibitor 99.22%
    Clobutinol hydrochloride is a compound that has anti-tussive effects. Clobutinol hydrochloride affects heart rate and blood pressure, it can be used for cough related research.
    Clobutinol hydrochloride
  • HY-105559
    Viquidil
    Control
    Viquidil (Quinotoxine), an isomer of Quinidine, is a cerebral vasodilator agent. Viquidil shows antithrombotic activity.
    Viquidil
  • HY-12550
    GW542573X
    Activator 98.79%
    GW542573X is a potent and selective Ca2+-activated K+ 2 (SK2) channels activator. GW542573X induces the Ca2+-response curve of hSK1 that left-shifted from an EC50 (Ca2+) value of 410 nM to 240 nM.
    GW542573X
  • HY-P5917A
    Vm24-toxin TFA
    Inhibitor
    Vm24-toxin (Vaejovis mexicanus peptide 24) TFA, a 36-residue peptide, is a potent and selective Kv1.3 blocker with a Kd of ~3 pM in lymphocytes. Vm24-toxin TFA shows >1500-fold affinity for Kv1.3 over other assayed potassium channels. Vm24-toxin TFA folds into a distorted cystine-stabilized α/β motif consisting of a single-turn α-helix and a three-stranded antiparallel β-sheet, stabilized by four disulfide bridges. Vm24-toxin TFA attenuates the CD4+ effector memory T cell response to T cell receptor (TCR) stimulation.
    Vm24-toxin TFA
  • HY-131012
    GoSlo-SR-5-69
    Activator 99.26%
    GoSlo-SR-5-69 is a potent activator of large conductance Ca2+-activated K+ (BK) channels, with an EC50 of 251 nM.
    GoSlo-SR-5-69
  • HY-131899
    N-Bromoacetamide
    ≥98.0%
    N-Bromoacetamide can irreversibly remove sodium channel inactivation in the cytoplasmic face of the membrane, also decreasing K current rapid inactivation.
    N-Bromoacetamide
  • HY-B0422S
    Nateglinide-d5
    Inhibitor ≥98.0%
    Nateglinide-d5 is a deuterium labeled Nateglinide. Nateglinide, a D-phenylalanine derivative, is an orally active and short-acting insulinotropic agent and a DPP IV inhibitor. Nateglinide inhibits ATP-sensitive K+ channels in pancreatic β-cells. Nateglinide is used for the treatment of type 2 (non-insulin-dependent) diabetes mellitus[1][2].
    Nateglinide-d<sub>5</sub>
  • HY-126028
    (-)-Sotalol
    Inhibitor 98.73%
    (-)-Sotalol ((R)-Sotalol) is the R-isomer of Sotalol. (-)-Sotalol is a hERG inhibitor, with a Kd of 0.60 μM. (-)-Sotalol can be used for the research of cardiac arrhythmias.
    (-)-Sotalol
  • HY-N1483
    Guanfu base A
    Inhibitor 98.10%
    Guanfu base A is an antiarrhythmic alkaloid isolated from Aconitum coreanum and is a potent noncompetitive CYP2D6 inhibitor, with a Ki of 1.20 μM in human liver microsomes (HLMs) and a Ki of 0.37 μM for the human recombinant form (rCYP2D6). Guanfu base A is also a potent competitive inhibitor of CYP2D in monkey (Ki of 0.38 μM) and dog (Ki of 2.4 μM) microsomes. Guanfu base A also inhibits HERG channel current.
    Guanfu base A
Cat. No. Product Name / Synonyms Application Reactivity