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-P0256A
    Apamin TFA
    		Inhibitor
    Apamin TFA (Apamine TFA) is an 18 amino acid peptide neurotoxin found in apitoxin (bee venom), is known as a specifically selective blocker of Ca2+-activated K+ (SK) channels and exhibits anti-inflammatory and anti-fibrotic activity.
    Apamin TFA
  • HY-A0176
    Glisoxepide
    		Inhibitor
    Glisoxepide, a sulphonamide derivative, is an orally available nonselective K(ATP) channel blocker, with antihyperglycemic activity and cardiovascular regulation effect.
    Glisoxepide
  • HY-175636
    ITGB3-IN-1
    		Inhibitor 98.69%
    ITGB3-IN-1 is an orally active integrin subunit beta 3 ITGB3 inhibitor with a Kd of 7.26 μM. ITGB3-IN-1 exhibits potent anti-orthopoxvirus effects with an EC50 for vaccinia virus (VACV) of 1.82 μM. ITGB3-IN-1 inhibits hERG with an IC50 of 1.13 μM. ITGB3-IN-1 can be used for the study of orthopoxvirus.
    ITGB3-IN-1
  • HY-13918
    Etimizol
    		Inhibitor 99.88%
    Etimizol(Ethymisole; Antiffine; Ethylnorantifein) was shown to relieve amnesia effectively in the origin of which there is the hypoxic component (hypobaric hypoxia, actinomycin D, mechanical injury of the brain). Etimizol can decrease the K-+ permeability of neurons' membrane during action potential.
    Etimizol
  • HY-172930
    PVTX-405
    		Inhibitor
    PVTX-405 is a selective and oral active IKZF2 molecular glue degrader with a DC50  of  0.7 nM and a Dmax of 91%. PVTX-405 enhances degradation efficiency, significantly reduces off-target degradation, and alleviates hERG inhibition with IC50 of 48 µM. PVTX-405 significantly inhibits the growth of MC38 tumors, with greater synergistic anti-cancer efficacy in combination with immune checkpoint therapies (ICTs) (anti-PD1 or anti-LAG3) in the MC38 mouse tumor xenograft model using Crbn391V C57BL/6 mice.
    PVTX-405
  • HY-W027553
    Ipidacrine
    		Inhibitor 99.81%
    Ipidacrine is orally active and brain-penetrant AChE and BuChE inhibitors with IC50 values of 1 μM and 1.9 μM, respectively, which is also a partial agonist of M2-cholinergic receptors and a reversible cholinesterase inhibitor. Ipidacrine has a stimulating effect on neuromuscular transmission and excitation along the nerve fibres with a moderately anti-pain effect. Ipidacrine is an aminopyridines and is structurally similar to Tacrine (HY-111338). Ipidacrine is effective in various amnesia models, improves erectile function and inhibits K+ and Na+-channels in the neuronal membrane in diabetic rats. Ipidacrine is promising for research of Alzheimer’s disease, ischaemic stroke, idiopathic neuropathy of the facial nerve, diabetes mellitus-induced erectile dysfunction and other deficits in central or peripheral cholinergic deseases.
    Ipidacrine
  • HY-B0527AS
    Amitriptyline-d6 hydrochloride
    		Inhibitor 99.93%
    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-19354
    Aglafoline
    		Inhibitor 98.46%
    Aglafoline inhibits PAF-induced platelet aggregation, with an IC50 value of 50 μM.
    Aglafoline
  • HY-113147B
    L-Palmitoylcarnitine TFA
    		Inhibitor 98.0%
    L-Palmitoylcarnitine TFA, a long-chain acylcarnitine and a fatty acid metabolite, accumulates in the sarcolemma and deranges the membrane lipid environment during ischaemia. L-Palmitoylcarnitine TFA inhibits KATP channel activity, without affecting the single channel conductance, through interaction with Kir6.2.
    L-Palmitoylcarnitine TFA
  • HY-172374A
    KV1.3-IN-2 hydrochloride
    		Inhibitor
    KV1.3-IN-2 hydrochloride is a kv1.3 potassium channel inhibitor without affecting hERG channel activity. KV1.3-IN-2 hydrochloride can be used in research of immune-related diseases such as psoriasis, rheumatoid arthritis, and systemic lupus erythematosus.
    KV1.3-IN-2 hydrochloride
  • HY-14834A
    Budiodarone tartrate
    		Inhibitor 98.14%
    Budiodarone (ATI-2042) tartrate is a chemical analogue of Amiodarone (HY-14187) with balanced, multiple cardiac ion channel (potassium, sodium and calcium channels) inhibiting activity. Budiodarone tartrate is an antiarrhythmic agent.
    Budiodarone tartrate
  • HY-100238
    Antihistamine-1
    		Inhibitor 99.08%
    Antihistamine-1 is a H1-antihistamine (Ki=6.9 nM) with acceptable blood-brain barrier penetration and also an inhibitor of CYP2D6 and hERG channel with IC50s of 5.4 and 0.8 μM, respectively.
    Antihistamine-1
  • HY-146158
    Fudapirine
    		Inhibitor
    Fudapirine, an anti-tuberculosis agent, displays excellent anti-mycobacterial activity against M. tuberculosis H37Rv and low cytotoxicity. Fudapirine exhibits potent activity with MIC50s of 0.083 and 0.11 μg/mL for agent susceptible tuberculosis (DS-TB) and multidrug resistant tuberculosis (MDR-TB) strains. Fudapirine also inhibits hERG channel with the IC50 of 1.89 μM.
    Fudapirine
  • HY-D0143B
    Quinine hemisulfate hydrate
    		Inhibitor 99.42%
    Quinine hemisulfate hydrate, an alkaloid derived from the bark of the cinchona tree, acts as an anti-malaria agent. Quinine hemisulfate hydrate 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 hemisulfate hydrate
  • HY-135809
    A2764 dihydrochloride
    		Inhibitor 99.05%
    A2764 dihydrochloride is a highly selective inhibitor of TRESK (TWIK-related spinal cord K+ channel, K2P18.1), which has moderate inhibitory effects on TREK-1 and TALK-1. A2764 dihydrochloride is more sensitive to the activated mTRESK channels (IC50=6.8 μM) than the basal current. A2764 dihydrochloride can lead to cell depolarization and increased excitability in native cells, it has the potential for probing the role of TRESK channel in migraine and nociception.
    A2764 dihydrochloride
  • HY-108590
    DMP-543
    		Inhibitor 99.96%
    DMP-543 (XR-543) is a KV7 channel blocker, also acts as a potent neurotransmitter release enhancer.
    DMP-543
  • HY-136832
    Noribogaine hydrochloride
    		Inhibitor 99.9%
    Noribogaine hydrochloride is an orally active, blood-brain barrier permeable SERT inhibitor (IC50=50-300 nM) and hERG channel blocker. Noribogaine hydrochloride enhances serotonergic transmission, activates the κ-opioid receptor (OPRK) G protein signaling pathway and inhibits β-arrestin recruitment. Meanwhile, Noribogaine hydrochloride blocks the μ-opioid receptor (OPRM) signaling pathway as well as ion channels associated with cardiac repolarization. Noribogaine hydrochloride induces neuritogenesis, upregulates GDNF mRNA expression, and modulates opioid tolerance. Noribogaine hydrochloride reduces alcohol-seeking behavior in experimental animals, and is widely used in studies related to depression, addiction, alcoholism, and cardiotoxicity.
    Noribogaine hydrochloride
  • HY-12082A
    GSK369796 Dihydrochloride
    		Inhibitor 99.56%
    GSK369796 Dihydrochloride is an affordable and effective antimalarial and inhibits hERG potassium ion channel repolarization with an IC50 of 7.5 μM.
    GSK369796 Dihydrochloride
  • HY-117825
    RU-TRAAK-2
    		Inhibitor 99.53%
    RU-TRAAK-2 is a completely reversible TRAAK (TWIK-related arachidonic acid-stimulated K+ channel) inhibitor. RU-TRAAK-2 exerts no activity for non-K2P channels (Kv1.2, Slo1 and GIRK2). RU-TRAAK-2 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
    RU-TRAAK-2
Cat. No. Product Name / Synonyms Application Reactivity