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-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-P2791
    Tertiapin (reduced)
    		Inhibitor
    Tertiapin (reduced) is a kind of synthesis of melittin, its Cys3-Cys14 and Cys5-Cys18 between containing a disulfide bond. Tertiapin (reduced) is a kind of inward rectifier potassium channels blockers, can block the activity of calcium activates large conductance potassium channels. Tertiapin (reduced) can be used for research in diseases such as rheumatoid arthritis and multiple sclerosis.
    Tertiapin (reduced)
  • HY-B0437R
    Sotalol (hydrochloride) (Standard)
    		Inhibitor
    Sotalol (hydrochloride) (Standard) is the analytical standard of Sotalol (hydrochloride). This product is intended for research and analytical applications. Sotalol hydrochloride (MJ 1999) is an orally active, non-selective β-adrenergic receptor blocker. Sotalol hydrochloride is a potent antiarrhythmic agent that can be used for the research of pediatric arrhythmias. Sotalol hydrochloride blocks β-receptors, and potassium KCNH2 channels. Antiepileptic Agent.
    Sotalol (hydrochloride) (Standard)
  • HY-P5157
    BmP02
    		Modulator
    BmP02 is a selective Kv1.3 channel blocker and a highly-selective Kv4.2 modulator, which can be isolated from Chinese scorpion (Buthus martensi Karsch) venom. BmP02 also delays the inactivation of Kv4.2 in HEK293T cells, with an EC50 value of ~850 nM. BmP02 inhibits the transient outward potassium currents (Ito) in ventricular muscle cells.
    BmP02
  • HY-122504
    Linoleoyl glycine
    		Inhibitor
    Linoleoyl glycine is a modified polyunsaturated fatty acid. Linoleoyl glycine has activating effects on human KCNQ1/KCNE1 (hKCNQ1/hKCNE1) channels expressed in Xenopus oocytes.
    Linoleoyl glycine
  • HY-100623
    Dofetilide N-oxide
    		Inhibitor
    Dofetilide N-oxide (UK-116856) is a metabolite of Dofetilide. Dofetilide is a class III antiarrhythmic agent that blocks potassium channels.
    Dofetilide N-oxide
  • HY-149536
    TWIK-1/TREK-1-IN-1
    		Inhibitor
    TWIK-1/TREK-1-IN-1 (compound 2a) is an inhibitor of the TWIK-related potassium channel (Potassium Channel) TREK-1. TREK-1 contains a two-pore domain potassium (K2p) channel that dimerizes into TREK-1 homodimer and TWIK-1/TREK-1 heterodimer, and is an important antidepressant target. TWIK-1/TREK-1-IN-3 targets TREK-1 homodimer and TWIK-1/TREK-1 heterodimer with IC50s of 9.36 μM and 14.6 μM, respectively, and has antidepressant-like effects.
    TWIK-1/TREK-1-IN-1
  • HY-19141
    L-691121
    		Inhibitor
    L-691121 exhibits antiarrhythmic efficacy through block of potassium channel and a followed prolonged cardiac potential. L-691121 exhibits embryotoxicity with fetal mortality at the dose of 0.8 mg/kg/day (p.o.). L-691121 is orally active.
    L-691121
  • HY-P3777
    β-Bag cell peptide
    		Inhibitor
    β-Bag cell peptide is a neuroactive peptide. β-Bag cell peptide elevates cyclic AMP levels in the bag cell neurons. β-Bag cell peptide decreases the amplitudes of the voltage-dependent potassium currents.
    β-Bag cell peptide
  • HY-160588
    Nav1.8-IN-7
    		Inhibitor
    Nav1.8-IN-7 (Example 116) is a selective Nav1.8 inhibitor. Nav1.8-IN-7 shows an inhibition of >50% with 100 nM for Nav1.8. Nav1.8-IN-7 inhibits hERG with an IC50 of 15.6 μM. Nav1.8-IN-7 has the potential for pain research.
    Nav1.8-IN-7
  • HY-146174
    KCa1.1 channel activator-2
    		Activator
    KCa1.1 channel activator-2 (compound 3F), a Quercetin hybrid derivative, is a selective vascular KCa1.1 channel stimulator. KCa1.1 channel activator-2 exhibits potent myorelaxant activity.
    KCa1.1 channel activator-2
  • HY-N3573
    Chlorahololide D
    		Inhibitor
    Chlorahololide D is a potent and selective Potassium Channel blocker with an IC50 value of 2.7 μM. Chlorahololide D is a nature product that could be isolated from the whole plant of Chloranthus holostegius.
    Chlorahololide D
  • HY-108577A
    XE991
    		Inhibitor
    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-120059
    NS4591
    NS4591 is a modulator of calcium-activated potassium channels with activity that enhances small (SK) and intermediate (IK) conductivity. NS4591 doubled IK-mediated currents in whole-cell patch-clamp experiments at a concentration of 45 +/- 6 nM, and doubled SK3-mediated currents at a concentration of 530 +/- 100 nM. NS4591 inhibits the number of action potentials generated by suprathreshold depolarizing pulses in acutely isolated bladder primary afferent neurons. NS4591 also reduced carbakol-induced detrusor ring contraction in the rat bladder, demonstrating sensitivity to apamin.
    NS4591
  • HY-144802
    DDO-02001
    		Inhibitor
    DDO-02001 is a moderately potent Kv1.5 potassium channel inhibitor with an IC50 value of 17.7 μM. DDO-02001 can be used for researching anti-arrhythmia.
    DDO-02001
  • HY-149305
    PptT-IN-4
    		Inhibitor
    PptT-IN-4 (Compound 3a) is a PptT inhibitor (IC50: 0.71 μM). PptT-IN-4 inhibits Mtb H37Rv with a MIC value of 42 μM. PptT-IN-4 also inhibits hERG, hCav1.2, and hNav1.5 channels with IC50s of 11 μM, 8.1 μM, 6.9 μM respectively.
    PptT-IN-4
  • HY-120158
    ZD0947
    ZD0947 is an ATP-sensitive potassium channel activator with relatively effective activation of smooth muscle KATP channels (SUR2B/Kir6.1 and SUR2B/Kir6.2). ZD0947 partially antagonizes pancreatic KATP channels (SUR1/Kir6.2) and cardiac KATP channels (SUR2A/Kir6.2). ZD0947 is potentially used to inhibit overactive bladder (OAB).
    ZD0947
  • HY-B0551S
    Doxapram-d8
    		Inhibitor
    Doxapram-d8 is deuterated labeled Doxapram (HY-B0551). Doxapram inhibits TASK-1, TASK-3 and TASK-1/TASK-3 heterodimer channels with EC50s of 410 nM, 37 μM and 9 μM, respectively.
    Doxapram-d<sub>8</sub>
  • HY-P1281
    Kaliotoxin
    		Inhibitor
    Kaliotoxin is a peptidyl inhibitor of neuronal BK-Type. Kaliotoxin can specific inhibit Kv channels and calcium-activated potassium channels. Kaliotoxin can be used for the research of the regulation of membrane potential and neuron excitability.
    Kaliotoxin
  • HY-18600B
    (E)-Azimilide
    (E)-Azimilide is an isomer of Azimilide (HY-18600), a class of antiarrhythmic compounds that inhibit I(Ks) and I(Kr) activity.
    (E)-Azimilide
Cat. No. Product Name / Synonyms Application Reactivity