Potassium Channels

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  1. Kir6.2/SUR inhibitor

    Glimepiride is a potent Kir6.2/SUR inhibitor with IC50 of 3.0 nM, 5.4 nM, and 7.3 nM for SUR1, SUR2A and SUR2B, used in the treatment of type 2 diabetes mellitus.
  2. Potassium Channel inhibitor

    Repaglinide is a potent short-acting insulin secretagogue that acts by closing ATP-sensitive potassium (KATP) channels in the plasma membrane of the pancreatic beta cell.
  3. sodium-potassium pump inhibitor

    Digoxin is a sodium-potassium pump inhibitor.
  4. 5-HT3 receptor inhibitor

    Eucalyptol is a bicyclic monoterpene that has been found in Eucalyptus and other plants. It is an inhibitor of 5-HT3 receptor ,potassium channel, TNF-α and IL-1β.
  5. K+ Channel inhibitor

    K+ Channel inhibitor, building block for synthesis of dihydropyrazolopyrimidine inhibitors of Kv1.5 (IKur).
  6. Wnt/beta-catenin inhibitor

    Hexachlorophene is a potent KCNQ1/KCNE1 potassium channel activator with EC50 of 4.61 ?? 1.29 uM; also is an inhibitor of Wnt/beta-catenin signaling.
  7. Kir2 family channels inhibitor

    ML133 hydrochloride is a selective Kir2 family channels inhibitor, with an IC50 of 1.8 μM at pH 7.4 and 290 nM at pH 8.5.
  8. VRAC inhibitor

    DCPIB is a selective, reversible and potent inhibitor of volume-regulated anion channels (VRAC), voltage-dependently activates potassium channels TREK1 and TRAAK, inhibits TRESK, TASK1 and TASK3 (IC50s, 0.14, 0.95, 50.72 μM, respectively).
  9. ROMK inhibitor

    VU591 hydrochloride is a potent, selective renal outer medullary potassium channel (ROMK or Kir1.1) inhibitor, with an IC50 of 0.24 μM.
  10. KCC2 inhibitor

    VU 0240551 is a small molecule inhibitor of the neuronal K-Cl cotransporter, KCC2 (IC50 = 560 nM for K+ uptake assay in KCC2-overexpressing cells).
  11. Potassium Channel inhibitor

    Azimilide(NE-10064) is a class III antiarrhythmic compound, inhibits I(Ks) and I(Kr) in guinea-pig cardiac myocytes and I(Ks) (minK) channels expressed in Xenopus oocytes.
  12. HIF-1α inhibitor

    Minocycline hydrochloride is a broad-spectrum tetracycline antibiotic, acting by binding to the bacterial 30S ribosomal subunit and inhibiting protein synthesis.
  13. ROMK inhibitor

    MK-7145 is a ROMK inhibitor, with an IC50 of 0.045 μM.
  14. hERG potassium channel inhibitor

    Cisapride(R 51619) is a nonselective 5-HT4 receptor agonist, it is also a potent hERG potassium channel inhibitor.
  15. potassium channel inhibitor

    VU591 is a potent, selective renal outer medullary potassium channel (ROMK or Kir1.1) inhibitor, with an IC50 of 0.24 μM.
  16. TASK1(KCNK3) inhibitor

    ML365 is a novel selective small molecule inhibitor of TASK1(KCNK3) with IC50 of 4 nM(thallium influx fluorescent assay) and 16 nM(automated electrophysiology assay).
  17. ROMK inhibitor

    VU590 is a potent and moderately selective ROMK (Kir1.1) inhibitor, with an IC50 of 290 nM. VU590 also inhibits Kir7.1, with an IC50 of 8 μM. VU590 is not a good probe of ROMK function in the kidney.
  18. Potassium Channel inhibitor

    Acecainide, also known as N-acetylprocainamide and ASL 601, is the N-acetylated metabolite of procainamide. Acecainide is a Class III antiarrhythmic agent. It can be given either intravenously or orally, and is eliminated primarily by renal excretion.
  19. HDAC inhibitor

    HL23 is a histone deacetylase (HDAC) inhibitor with demonstrated efficacy against hepatocellular carcinoma (HCC). It enhances acetylation at the TXNIP promoter, leading to upregulation of TXNIP expression and modulation of potassium channel activity, ultimately inducing TXNIP-dependent potassium deprivation. HL23 effectively suppresses HCC progression and metastasis, and exhibits a synergistic antitumor effect when combined with Sorafenib, outperforming the combination of Sorafenib and Vorinostat in preclinical models.
  20. TNFα/IL-2 Inhibitor

    Immuno modulator-1 is a potent inhibitor of TNFα and IL-2, displaying IC50 values of 4.7 nM and 26 nM, respectively, in human peripheral blood mononuclear cells (hPBMC). This compound is valuable for investigating immune response modulation and inflammatory pathways. Additionally, Immuno modulator-1 demonstrates a hERG potassium channel blocking effect, exhibiting a 20% inhibitory percentage at a concentration of 3 μM, making it relevant for studies involving cardiac safety profiles.
  21. Potassium Channel Inhibitor

    Endoxifen Z-isomer hydrochloride is a selective potassium channel inhibitor that acts as a potent metabolite of Tamoxifen, exhibiting over 100-fold increased potency compared to its parent compound. This compound effectively inhibits PKCβ1 kinase activity, leading to decreased phosphorylation of AKT at Ser473 and its substrates, which ultimately promotes apoptosis. Endoxifen Z-isomer hydrochloride demonstrates significant anticancer effects, particularly against hormone-resistant metastatic breast cancer, making it a valuable reagent for cancer research applications.
  22. ASK1 Inhibitor

    ASK1-IN-11 is a potent inhibitor of apoptosis signal-regulating kinase 1 (ASK1), exhibiting an IC50 of less than 200 nM. This compound also demonstrates inhibitory effects on TNF-α, MYLK/MLCK kinases, and hERG potassium channels. The primary research applications of ASK1-IN-11 include investigations into inflammation-related pathways.
  23. Potassium Channel Inhibitor

    Dequalinium Chloride is a selective inhibitor of potassium channels sensitive to Apamin. This cationic, lipophilic compound exhibits mitochondrial toxicity and additionally acts as an antagonist of the α7 nicotinic acetylcholine receptor. Dequalinium Chloride demonstrates broad-spectrum antimicrobial properties, exhibiting both bactericidal and fungicidal activities, making it valuable for research in cellular physiology and microbiology.
  24. KATP Inhibitor

    Tolbutamide is an orally active KATP inhibitor that primarily targets ATP-sensitive potassium channels. It is known to inhibit cell proliferation and stimulate the exocytosis of glucagon, while also reducing fetal lethality in murine models. This compound is utilized in diabetes research to explore mechanisms of insulin secretion and glucose metabolism.
  25. SERT/NET Inhibitor

    Amitriptyline is a tricyclic antidepressant that primarily inhibits the serotonin transporter (SERT) and norepinephrine transporter (NET), enhancing synaptic levels of serotonin and norepinephrine. With a Ki value of 3.45 nM for SERT and 13.3 nM for NET, Amitriptyline demonstrates significant antidepressant activity. Additionally, it exhibits agonistic properties at α2A adrenergic and TrkA/TrkB receptors, contributing to its analgesic and neurotrophic effects. Furthermore, Amitriptyline interacts with various receptors, including muscarinic cholinergic and H1 receptors, which may lead to a variety of side effects, while its ability to block sodium channels and hERG potassium channels raises concerns regarding cardiotoxicity.
  26. Kv2.1 Inhibitor

    Kv2.1-IN-1 is a selective inhibitor of the Kv2.1 potassium channel, demonstrating a potent inhibitory activity with an IC50 of 0.07 μM. It exhibits over 130-fold selectivity against other potassium, sodium, and calcium channels. Kv2.1-IN-1 has been shown to reduce H2O2-induced apoptosis in HEK293 cells and provides significant neuroprotective effects in models of middle cerebral artery occlusion (MCAO) in rats. This compound is useful for research into ischemic stroke and related neurological conditions.
  27. Potassium Channel Inhibitor

    DPO-1 is a selective inhibitor of Kv1.5 and Kv1.3 potassium channels (EC50 = 3.1 μM) with notable immunomodulatory and anti-inflammatory properties. It effectively reduces Kv1.3 current density, diminishes Ca2+ influx in calcium-depleted Jurkat cells, and inhibits IL-2 secretion in activated Jurkat cells. Additionally, DPO-1 obstructs uric acid sodium (MSU)-induced NLRP3 inflammasome activation by interfering with Kv1.5-mediated K+ efflux. This reagent is valuable for research into immunological disorders and atrial fibrillation.
  28. ATX Inhibitor/PPARγ Agonist

    EL244 is a dual inhibitor of Autotaxin (ATX), with an IC50 of 50 nM, and a selective agonist of PPARγ, exhibiting an IC50 of 1.3 μM. This compound shows low cytotoxicity in human HepG2 cells, with an EC50 of 81.2 μM, and minimal inhibition of the cardiac hERG potassium channel (12% at 25 μM). EL244 effectively reduces pulmonary Lysophosphatidic Acid (LPA) levels, mitigates fibrosis, and enhances respiratory function in vivo, making it a valuable tool for the study of idiopathic pulmonary fibrosis and interstitial lung disease (ILD).
  29. PDE4 Inhibitor

    L-869298 is a potent and selective inhibitor of phosphodiesterase 4 (PDE4), demonstrating an IC50 value of 0.5 nM for the PDE4A isoform. This compound exhibits minimal activity against the hERG potassium channel, making it a valuable tool for studies focused on inflammation, neurodegeneration, and other PDE4-related pathways. Its specificity and efficacy make it a suitable candidate for research applications in therapeutic development targeting PDE4-mediated signaling.
  30. DPP8/9 Inhibitor

    DPP8/9-IN-2 is a selective inhibitor of dipeptidyl peptidase 8 and 9 (DPP8/DPP9) with potent inhibitory activity, exhibiting IC50 values of 0.22 nM and 3 nM, respectively. This compound has been implicated in research related to tumor biology and other pathological conditions. Notably, DPP8/9-IN-2 demonstrates certain cardiotoxicity, indicated by its IC50 values of 0.7 μM for the hERG potassium channel, 29.0 μM for the Nav1.5 sodium channel, and 27.7 μM for the Cav1.2 calcium channel.
  31. Potassium Channel Inhibitor

    Naluzotan hydrochloride is a selective potassium channel inhibitor that primarily functions as an amidosulfonamide 5-HT1A agonist, exhibiting an IC50 of approximately 20 nM and a Ki value of 5.1 nM. This compound demonstrates notable activity in modulating neurotransmitter pathways, making it a valuable tool for research into anxiety and depression treatments. Additionally, naluzotan hydrochloride acts as a weak hERG K+ channel blocker with an IC50 of 3800 nM, highlighting its potential relevance in cardiac safety assessments.
  32. ASK1 Inhibitor

    ASK1-IN-10 is a selective inhibitor of apoptosis signal-regulating kinase 1 (ASK1), exhibiting an IC50 value of less than 200 nM. In addition to its primary mechanism, ASK1-IN-10 exhibits inhibitory activity against hERG potassium channels. This compound serves as a valuable tool for investigating the role of ASK1 in inflammation-related research and its potential therapeutic implications.
  33. hERG Inhibitor

    GSK369796 is a selective inhibitor of the hERG potassium ion channel, demonstrating an IC50 value of 7.5 μM. This compound exhibits significant antimalarial activity, making it a valuable tool for research in both cardiac function and malaria therapeutics. Its potential implications in pharmacology and drug development provide a basis for further exploration in ion channel regulation and associated biological pathways.
  34. Parasite Inhibitor

    Ep vinyl quinidine, an epi-vinyl stereoisomer of Quinidine, serves as a targeted inhibitor of parasitic activity. This compound exhibits significant potential in malaria research, leveraging its capabilities as a selective cytochrome P450db inhibitor. Additionally, it functions as a potassium channel blocker with an IC50 of 19.9 μM, positioning it as a valuable tool for investigating anti-parasitic mechanisms and therapeutic interventions.
  35. Adrenergic Receptor Inhibitor

    Besipirdine is an adrenergic receptor inhibitor that exhibits non-receptor-dependent cholinomimetic properties. This compound is known to inhibit voltage-dependent sodium and potassium channels, contributing to its pharmacological profile. Besipirdine's biological activity makes it relevant for research applications focused on neuropharmacology and the modulation of synaptic transmission.
  36. FTO Inhibitor

    Meclofenamic acid sodium hydrate is a selective inhibitor of fat mass and obesity-associated enzyme (FTO). Its primary action involves competing with FTO for binding to m(6)A-containing nucleic acids, thereby influencing RNA metabolism. Additionally, it exhibits non-selective gap-junction blocking activity and inhibits potassium channels hKv2.1 and hKv1.1, with IC50 values of 56.0 μM and 155.9 μM, respectively. This compound is valuable in research focused on obesity, metabolic regulation, and the role of RNA modifications in cellular processes.
  37. μ-opioid Receptor Activator, hERG (Kv11.1) Potassium Channel Inhibitor

    ERG-IN-6 is a potent μ-opioid receptor activator, exhibiting an EC50 of 0.12 nM, which makes it an effective tool for studies related to pain modulation. Additionally, ERG-IN-6 functions as a hERG (Kv11.1) potassium channel inhibitor with an IC50 of 0.681 μM. This compound is valuable for research applications investigating the interplay between opioid signaling and ion channel regulation.
  38. EBP Inhibitor

    EBP-IN-1 is a selective inhibitor of emopamil binding protein (EBP) that effectively crosses the blood-brain barrier. This compound demonstrates an IC50 of 8.2 μM against human ERG potassium channels in CHO cells, leading to the inhibition of EBP's sterol isomerase activity and subsequent accumulation of Zymostenol. EBP-IN-1 has been shown to promote oligodendrocyte differentiation in human cortical organoids, making it a valuable tool for research into multiple sclerosis and related neurological disorders.
  39. Kv1.5 Inhibitor

    MK-1832 is a selective inhibitor of the Kv1.5 potassium channel, exhibiting an IC50 value of 86 nM. As a P-glycoprotein substrate, MK-1832 is particularly relevant for studying atrial fibrillation and related cardiovascular disorders. Its specificity for Kv1.5 makes it a valuable tool for investigating the molecular mechanisms underlying cardiac arrhythmias and for evaluating potential therapeutic interventions.
  40. KV1.3 Inhibitor

    KV1.3-IN-2 hydrochloride is a selective inhibitor of the KV1.3 potassium channel, with no impact on hERG channel activity. This compound is particularly valuable in the study of immune-related diseases, including psoriasis, rheumatoid arthritis, and systemic lupus erythematosus, due to its ability to modulate KV1.3-mediated cellular processes. Researchers can utilize KV1.3-IN-2 hydrochloride to explore mechanisms underlying these conditions and develop potential therapeutic strategies.
  41. Nav1.7 Inhibitor

    Nav1.7-IN-19 is a selective inhibitor of the voltage-gated sodium channel Nav1.7, demonstrating a potent inhibitory activity with an IC50 of 0.49 μM. This compound exhibits significant selectivity for Nav1.7, with 312-fold and 662-fold selectivity over Nav1.1 and Nav1.5 in their inactivated states, respectively. Additionally, Nav1.7-IN-19 shows minimal inhibition of hERG potassium channels. Due to its analgesic properties, Nav1.7-IN-19 is valuable for research focused on neurological diseases.
  42. CPS1 Inhibitor

    H3B-120 is a selective inhibitor of carbamoyl phosphate synthetase 1 (CPS1) that functions through competitive allosteric modulation, exhibiting an IC50 of 1.5 μM and a Ki of 1.4 μM. This compound demonstrates anti-cancer activity, making it a valuable tool for research into metabolic and oncological pathways. H3B-120 can be utilized in studies investigating the role of CPS1 in cancer metabolism and therapeutic targeting.
  43. Complex II Inhibitor

    Atpenin A5 is a highly selective inhibitor of complex II, with an IC50 of approximately 10 nM. This compound acts as a potent mKATP channel agonist, offering cardioprotective effects. It is valuable for research applications focused on mitochondrial function, cardiac physiology, and energy metabolism.
  44. Kir6.2 Inhibitor

    L-Palmitoylcarnitine chloride is a selective inhibitor of the Kir6.2 subunit of KATP channels. It disrupts membrane lipid homeostasis during ischemic conditions by accumulating in the sarcolemma while inhibiting channel activity without altering single-channel conductance. This compound is valuable for research into metabolic disturbances and the role of KATP channels in cardiac and skeletal muscle physiology.
  45. SK Channels Inhibitor

    NS8593 hydrochloride is a selective inhibitor of small conductance Ca2+-activated K+ channels (SK channels). This compound demonstrates reversible inhibition of SK3-mediated currents with a Kd value of 77 nM, as well as inhibiting SK1-3 subtypes in a Ca2+-dependent manner (Kds of 0.42, 0.60, and 0.73 μM respectively at 0.5 μM Ca2+). Importantly, NS8593 hydrochloride does not affect intermediate and large conductance Ca2+-activated K+ channels, such as hIK and hBK channels. It is valuable for research applications exploring the role of SK channels in cellular signaling and excitability.
  46. TMEM175 Inhibitor

    AP-6 is a selective inhibitor of TMEM175, targeting lysosomal function modulation. This compound enhances lysosomal macromolecular catabolism, promoting accelerated digestive processes in macrophages and other cell types. AP-6 is a valuable tool in research related to Parkinson's disease, providing insights into lysosomal dysregulation and its implications in neurodegeneration.
  47. Ca2+-activated K+ Channel Inhibitor

    Iberiotoxin is a potent inhibitor of Ca2+-activated K+ channels, derived from the venom of the Buthus tamulus scorpion. It demonstrates high specificity and selectivity, with an affinity (Kd) of approximately 1 nM, effectively blocking high conductance channels without affecting other voltage-dependent ion channels. This characteristic makes Iberiotoxin a valuable tool for investigating the physiological roles of Ca2+-activated K+ channels in various biological processes and for exploring their relevance in neurophysiological and cardiological research applications.
  48. Kv12.2 (KCNH3) Inhibitor

    ASP2905 is a potent inhibitor of the potassium channel Kv12.2 (KCNH3), encoded by the Kcnh3/BEC1 gene. This compound is orally active and capable of crossing the blood-brain barrier, exhibiting significant antipsychotic properties. ASP2905 is valuable for studying the roles of Kv12.2 in neuropsychiatric disorders and exploring therapeutic avenues for conditions such as schizophrenia.
  49. CHI3L1 Inhibitor

    CHI3L1-IN-1 is a selective inhibitor of Chitinase-3-like protein 1 (CHI3L1), also known as YKL-40, with an IC50 of 50 nM. This compound exhibits additional effects by inhibiting the hERG channel with an IC50 of 2.3 μM. CHI3L1-IN-1 is valuable for research applications focused on the roles of CHI3L1 in inflammation and cancer, offering insights into its potential as a biomarker and therapeutic target.
  50. Kv1.3 Inhibitor

    Margatoxin is a highly selective inhibitor of the voltage-gated potassium channel Kv1.3, with a binding affinity (Kd) of 11.7 pM. It also exhibits inhibitory effects on Kv1.2 (Kd = 6.4 pM) and Kv1.1 (Kd = 4.2 nM). This 39-amino-acid peptide, derived from the venom of Centruroides margaritatus, is extensively utilized in ion channel research to study the role of Kv1.3 in various physiological and pathophysiological processes.

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