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-15209S
    Repaglinide-d5
    		Inhibitor 98.67%
    Repaglinide-d5 is deuterium labeled Repaglinide. Repaglinide is an insulin secretagogue for the treatment of type-2 diabetes mellitus.
    Repaglinide-d<sub>5</sub>
  • HY-B0527AR
    Amitriptyline hydrochloride (Standard)
    		Inhibitor
    Amitriptyline hydrochloride (Standard) is the analytical standard of Amitriptyline hydrochloride (HY-B0527A). This product is intended for research and analytical applications. Amitriptyline hydrochloride is an orally active tricyclic antidepressant (TCA). Amitriptyline hydrochloride mainly exerts its antidepressant effect by blocking SERT (Ki = 3.45 nM) and NET (Ki = 13.3 nM), thereby increasing the concentrations of 5-hydroxytryptamine (5-HT) and norepinephrine (NE) in the synaptic cleft. Amitriptyline hydrochloride is also an agonist at α2A and TrkA/TrkB receptors, thereby exerting analgesic and neurotrophic activities (inhibiting cell apoptosis). Amitriptyline hydrochloride can reduce inflammation, angiogenesis and fibrosis. Amitriptyline hydrochloride binds to DAT (with Ki = 2.58 μM). Amitriptyline hydrochloride has high affinity for a series of receptors and can antagonize muscarinic cholinergic receptors (M1/M2/M3/M4/M5 receptors) (Ki = 11-24 nM), H1 receptors (Ki = 0.5-1.1 nM), adrenergic α1 receptors (Ki = 4.4 nM), etc., resulting in a series of side effects. Amitriptyline hydrochloride can block sodium channels and hERG potassium channel (IC50 = 4.78 μM) and it has cardiotoxicity.
    Amitriptyline hydrochloride (Standard)
  • HY-B1109
    N-Acetylprocainamide
    		Inhibitor 99.89%
    N-Acetylprocainamide is a class III antiarrhythmic, which blocks K+ channels.
    N-Acetylprocainamide
  • HY-107319
    Almitrine mesylate
    		Inhibitor 99.81%
    Almitrine mesylate, a peripheral chemoreceptor agonist, inhibits selectively the Ca2+-dependent K+ channel.
    Almitrine mesylate
  • HY-108586
    NS3623
    		Activator 99.0%
    NS3623 is an activator of human ether-a-go-go-related gene (hERG1/KV11.1) potassium channels. NS3623 activates the IKr and Ito currents and has antiarrhythmic effect. NS3623 has a dual mode of action, being an inhibitor of hERG1 channels.
    NS3623
  • HY-18600
    Azimilide
    		Inhibitor 99.01%
    Azimilide (NE-10064) is a class III antiarrhythmic agent, which works by blocking potassium channels in the heart. Azimilide is a dual blocker of IKs (IC50 = 2.6 μM (2mM [K⁺]ₑ)) and IKr (IC50 = 1 μM (4 mM [K⁺])). Azimilide blocked HERG channel at 0.1 and 1 Hz with IC50s of 1.4 μM and 5.2 μM respectively. Azimilide also inhibits L-type calcium current (ICa) (IC50 = 17.8 μM) and sodium current (INa) (IC50 = 19 μM). Azimilide can be used for the study of atrial fibrillation and ventricular fibrillation.
    Azimilide
  • HY-162549
    CPK20
    		Inhibitor 99.67%
    CPK20 is a potent and highly selective KCNT1 channel blocker, and CPK20 can be used in the study of epilepsy.
    CPK20
  • HY-172182
    ONO-2920632
    		Activator 99.11%
    ONO-2920632 is an orally active and central nervous system (CNS)-penetrant TREK activator, with EC50 values of 0.3 µM and 2.8 μM for TREK-1 and TREK-2, respectively. ONO-2920632 exhibits selectivity for other K2P channels (>91-fold selective versus TASK1, TASK2, TASK3, TRAAK, and TWIK2; 31-fold selective versus TRESK). ONO-2920632 possesses analgesic effects and can be used in research on pain, migraine, and neurological disorders.
    ONO-2920632
  • HY-B1482A
    Mesoridazine
    		Inhibitor
    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
  • HY-B0480
    Brompheniramine maleate
    		Inhibitor 99.78%
    Brompheniramine ((±)-Brompheniramine) maleate is a potent and orally active antihistamine of the alkylamine class. Brompheniramine maleate is a selective histamine H1 receptor antagonist with a Kd of 6.06 nM. Brompheniramine maleate can block the hERG channels, calcium channels, and sodium channels with IC50s of 0.90 μM, 16.12 μM and 21.26 μM, respectively. Brompheniramine maleate has anticholinergic, antidepressant and anesthetic properties and can be used for allergic rhinitis research.
    Brompheniramine maleate
  • HY-B0527AS
    Amitriptyline-d6 hydrochloride
    		Inhibitor 99.65%
    Amitriptyline-d6 hydrochloride is the deuterium labeled Amitriptyline hydrochloride (HY-B0527A). Amitriptyline hydrochloride is an orally active tricyclic antidepressant (TCA). Amitriptyline hydrochloride mainly exerts its antidepressant effect by blocking SERT (Ki = 3.45 nM) and NET (Ki = 13.3 nM), thereby increasing the concentrations of 5-hydroxytryptamine (5-HT) and norepinephrine (NE) in the synaptic cleft. Amitriptyline hydrochloride is also an agonist at α2A and TrkA/TrkB receptors, thereby exerting analgesic and neurotrophic activities (inhibiting cell apoptosis). Amitriptyline hydrochloride can reduce inflammation, angiogenesis and fibrosis. Amitriptyline hydrochloride binds to DAT (with Ki = 2.58 μM). Amitriptyline hydrochloride has high affinity for a series of receptors and can antagonize muscarinic cholinergic receptors (M1/M2/M3/M4/M5 receptors) (Ki = 11-24 nM), H1 receptors (Ki = 0.5-1.1 nM), adrenergic α1 receptors (Ki = 4.4 nM), etc., resulting in a series of side effects. Amitriptyline hydrochloride can block sodium channels and hERG potassium channel (IC50 = 4.78 μM) and it has cardiotoxicity.
    Amitriptyline-d<sub>6</sub> hydrochloride
  • HY-B0401S
    Tolbutamide-d9
    		Inhibitor 99.02%
    Tolbutamide-d9 is the deuterium labeled Tolbutamide. Tolbutamide is a first generation potassium channel blocker, sulfonylurea oral hypoglycemic agent.
    Tolbutamide-d<sub>9</sub>
  • HY-134559
    TKIM
    		Inhibitor 99.73%
    TKIM is a TREK-1 channel inhibitor with an IC50 of 2.96 μM. TKIM binds to the pocket of the intermediate (IM) state of TREK-1.
    TKIM
  • HY-P2785A
    Phrixotoxin-1 TFA
    Phrixotoxin-1 (TFA), from the venom of the theraphosid spider Phrixotrichus auratus, is a specific peptide inhibitor of Kv4 potassium channel.
    Phrixotoxin-1 TFA
  • HY-108594
    PD-118057
    		Activator ≥99.0%
    PD-118057 is a hERG channel activator without causing hERG blockade. PD-118057 activates hERG channel to suppress changes in membrane excitability.
    PD-118057
  • HY-19354
    Aglafoline
    		Inhibitor 98.46%
    Aglafoline inhibits PAF-induced platelet aggregation, with an IC50 value of 50 μM.
    Aglafoline
  • HY-126486
    AVE1231
    		Inhibitor 98.61%
    AVE1231 (A293) is a dual-pore potassium channel TASK-1 inhibitor. AVE1231 blocks carbamoylcholine chloride (HY-B1208)-activated IKACh (IC50=8.4 μM). AVE1231 can be used in the study of arrhythmias and atrial fibrillation.
    AVE1231
  • HY-W010668
    Quinine sulfate hydrate
    		Inhibitor 99.97%
    Quinine sulfate hydrate (2:1:4) is an orally active alkaloid extracted from cinchona bark and can be used in anti-malarial studies. Quinine sulfate hydrate (2:1:4) 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 sulfate hydrate
  • HY-110184
    PK-THPP
    		Inhibitor 99.0%
    PK-THPP is a potent and brain-penetrant TWIK-related acid-sensitive K+ ion channel (K2P9.1 or TASK-3) blocker with IC50s of 35 nM and 300 nM for TASK-3 and TASK-1, respectively. PK-THPP shows no or less activity against other K+ channels. PK-THPP is an effective breathing stimulant and can be used for the study of breathing disorders.
    PK-THPP
  • HY-127106
    VU0810464
    		Activator 99.29%
    VU0810464 is a potent and selective non-ureaG protein-gated inwardly-rectifying potassium channels (GIRK, Kir3) activator. VU0810464 displays nanomolar potency for neuronal (EC50=165 nM) and GIRK1/4 (EC50=720 nM) channels with improved brain penetration.
    VU0810464
Cat. No. Product Name / Synonyms Application Reactivity