Potassium Channel

Nigericin sodium salt is an antibiotic, an NLRP3 activator, and a cationic ion carrier. Nigericin sodium triggers the activation of the NALP3 inflammasome, which inhibits Golgi function and suppresses the growth of Gram-positive bacteria.

Kv3 modulator 1 is a voltage-gated potassium channel Kv3 modulator that can be used to study neurologic-level diseases.

Branaplam (LMI 070) is a highly potent, selective and orally active small molecule SMN2 splicing modulator.

Glibornuride, a blocker of ATP-sensitive K+ channels (pKi: 5.75), inhibits high-affinity [3H]-glibenclamide binding with potencies corresponding to its K+ channel activity.

Atpenin A5 is a potent and highly specific complex II inhibitor (IC50 ~10 nM), as well as an effective mKATP channel agonist and cardioprotective agent [1].

SCH-23390 hydrochloride (R-(+)-SCH23390 hydrochloride) is an effective dopamine receptor antagonist, with high affinity for the D1 (Ki=0.2 nM) and D5 (Ki=0.3 nM) receptors.

BMS-919373 is a potassium channel Kv1.5 (KCNA5) inhibitor for atrial fibrillation and acute coronary syndrome.

KCNQ2/3 activator-1 is a Kv7.2/Kv7.3 (KCNQ2/3) potassium channel activator, details of which are from Compound A of Patent WO2021113757A1.

Bisaramil hydrochloride (Bisaramil) is a novel diazabicyclononane antiarrhythmic compound that inhibits the generation of free radicals.Bisaramil hydrochloride blocks sodium currents and inhibits the slow Ca(2+) action potential induced by isoproterenol in K(+)-depolarized muscle.

Rosuvastatin (ZD4522) is an inhibitor of HMG-CoA reductase (HMGCR) (IC50=11 nM), selective and competitive. Rosuvastatin has hypolipidemic and antiatherosclerotic effects.

DCPIB, a known specific and potent inhibitor of volume-regulated anion channels (VRAC),DCPIB displayed superior selectivity toward TRESK with an IC50 of 0.14 μM, demonstrating at least 100-fold higher affinity over TREK1/TRAAK channels.

PAP-1 (5-(4-Phenoxybutoxy)psoralen) is a selective, orally active Kv1.3 blocker with an EC50 of 2 nM.

BAPTA-AM is a calcium chelator that is cell-permeable and selective, blocking hERG, hKv1.3, and hKv1.5 channels (IC50=1.3/1.45/1.23 μM). BAPTA-AM has a 105-fold higher affinity for Ca2+ than for Mg2+, and can be used for the role of calcium in cell signaling.

Gut restricted-7 (GR-7) is a covalent and orally active pan-bile salt hydrolase (BSH) inhibitor that reduces gut bacterial BSHs and decreases deconjugated bile acid levels in the feces of mice.

NS1643 is a potent human ether-a-go-go related gene (hERG) KV11.1 channel activator with EC50 of 10.5 μM.

BSH-IN-1 is a potent, covalent inhibitor of gut bacterial recombinant bile salt hydrolases (BSHs; IC50s: 108 nM for B. longum BSH and 427 nM for B. theta BSH).

Strictosamide possesses antibacterial and antiviral activities, it also may have important effects on inflammation and inflammatory pain.

KT-362 fumarate is a novel compound that acts as an antagonist of calcium channels, potassium channels and sodium channels.KT-362 fumarate causes vasodilation by affecting intracellular calcium mobilization in atrial muscle cells.KT-362 fumarate has a relaxing effect on femoral and basilar artery strips in rabbits.

Aprikalim (RP 52891) is an adenosine triphosphate potassium channel (KATP) opener that protects against nerve damage in a rabbit model of spinal cord ischemia.Aprikalim inhibits vasoconstriction and inhibits the elevation of [Ca2+]i during myocardial paralysis, and can be used to study cardiovascular disease.

Ursodeoxycholic acid (UDCA) can be used to dissolve gallstones and reduce cholesterol absorption.

SKF-96365 hydrochloride (SKF96365) , a SOCE inhibitor, exhibits potent anti-neoplastic activity by inducing cell-cycle arrest and apoptosis in colorectal Y cells. SKF-96365 hydrochloride can induce cytoprotective autophagy to delay apoptosis by preventing the release of cytochrome c (cyt c) from the mitochondria into the cytoplasm. Mechanistically, SKF-96365 hydrochloride treatment inhibited the calcium calmodulin-dependent protein kinase IIγ (CaMKIIγ) AKT signaling cascade in vitro and in vivo. Overexpression of CaMKIIγ or AKT abolished the effects of SKF-96365 on Y cells, suggesting a critical role of the CaMKIIγ AKT signaling pathway in SFK-96365-induced biological effects. SKF-96365 hydrochloride inhibited hERG current in a concentration-dependent manner.

ZTZ240 is a KCNQ2 channel activator used in the study of epilepsy.

UK 66914 is a K(+) channel blocker for the study of cardiac arrhythmias.

Sipatrigine (619C89) is an antiepileptic compound with neuroprotective activity through glutamate release, TREK ion channels, TRESK channels, sodium channels, and calcium channel inhibitors in the CNS, and can be used to study TRESK channels.

E-4031 is a methanesulfonanilide class III antiarrhythmic agent that prolongs cardiac action potential duration by blocking ERG K+ channels (IC50 = 29 nM)

Clofilium tosylate is a potassium channel blocker. It induces apoptosis of human promyelocytic leukemia (HL-60) cells via Bcl-2-insensitive activation of caspase-3.

Tannic acid (Gallotannic acid) is a novel hERG channel blocker.

Tolazamide (U-17835) is a sulphonylurea hypoglycemic agent with actions and uses similar to those of CHLORPROPAMIDE.

Levosimendan (OR1259) is a calcium sensitizer used in the management of acutely decompensated congestive heart failure. It increases the sensitivity of the heart to calcium, thus increasing cardiac contractility without a rise in intracellular calcium. Levosimendan exerts its effect by increasing calcium sensitivity of myocytes by binding to cardiac troponin C in a calcium-dependent manner.

20(S)-Ginsenoside Rg3 (Rg3) possess an ability to inhibit the lung metastasis of tumor cells via inhibition of the adhesion and invasion of tumor cells. It inhibits the proliferation of human umbilical vein endothelial cells(HUVEC) and has anti-angiogenesis activities.

Dronedarone (SR 33589) is an amiodarone analogue which has an effective and promising treatment for Atrial fibrillation.

Dihydroberberine has anti-atherosclerotic, anti-inflammatory, hypolipidemic and antitumor activities. It inhibits human ether-a-go-go-related gene (hERG) channels and remarkably reduces Hsp90 expression and its interaction with hERG.

Maralixibat Chloride (LUM001 chloride), an apical, sodium-dependent, bile acid transport inhibitor, prevents enterohepatic bile acid recirculation.

Daurisoline ((R,R)-Daurisoline) is a hERG inhibitor. Daurisoline is also an autophagy blocker.

Novobiocin Sodium (Albamycinsodium) binds to DNA gyrase and blocks adenosine triphosphatase (ATPase) activity. Novobiocin sodium is an antibiotic compound derived from Streptomyces niveus. It has a chemical structure similar to coumarin.

Tetrandrine (Sinomenine A) is a naturally occurring biphenylisoquinoline alkaloid, a calcium channel inhibitor. Tetrandrine inhibits voltage-gated calcium channels (ICa) and Ca2+-activated potassium channels.

NS19504 is an activator of Ca2+-activated K+ channel with EC50 of 11.0 µM. NS19504 shows relaxing effect on bladder smooth muscle spontaneous phasic contractions[1].

1. Oleandrin (Folinerin), the principal cardiac glycoside component of PBI-524, can quantitatively account for regulation of BDNF at both the protein and transcriptional levels. 2. Oleandrin are known to inhibit the Na, K-ATPase pump, resulting in a consequent increase in calcium influx in heart muscle. 3. Oleandrin has stronger anti-proliferative activity in undifferentiated CaCO-2 cells (IC50, 8.25 nM) , causes an autophagic cell death and altered ERK phosphorylation in undifferentiated.

H3B-120 is a highly selective, competitive, and allosteric carbamoyl phosphate synthetase 1 (CPS1) inhibitor with an IC50 of 1.5 μM and a Ki of 1.4 μM, exhibiting anti-cancer activity.

Linoleoyl glycine, a modified polyunsaturated fatty acid, is an endogenous homologue of linoleoyl glycine. Linoleoyl glycine activates human KCNQ1 KCNE1 (hKCNQ1 hKCNE1) channels expressed in xenopus oocytes from mammalian skin, spinal cord and brain, and has shown analgesic activity in animal studies.

Chenodeoxycholic acid (CDCA) is a bile acid, usually conjugated with either glycine or taurine. It acts as a detergent to solubilize fats for intestinal absorption and is reabsorbed by the small intestine. It is used as cholagogue, a choleretic laxative, and to prevent or dissolve gallstones.

Pimozide (R6238) is a diphenylbutylpiperidine derivative and a dopamine antagonist with the antipsychotic property. Pimozide selectively inhibits type 2 dopaminergic receptors in the central nervous system (CNS), thereby decreasing dopamine neurotransmission and reducing the occurrence of the motor and vocal tics and delusions of parasitosis. In addition, this agent antagonizes alpha-adrenergic and 5-HT2 receptors.

CLP290 is an activator of the neuron-specific K+-Cl cotransporter KCC2 and displays potential for the treatment of a wide range of neurological and psychiatric indications.

ML 297 is a selective Kir3.1/3.2 (GIRK1/2) channel activator (IC50 values are 160, 887 and 914 nM for GIRK1/2, GIRK1/4 and GIRK1/3 respectively). ML 297 exhibits no effect on GIRK2, GIRK2/3, Kir2.1 and Kv7.4 channels, and has minimal effect on a panel of other ion channels, receptors and transporters.

Glibenclamide (Glyburide) is an antidiabetic sulfonylurea derivative with actions similar to those of chlorpropamide.

Nifedipine (Procardia) is a dihydropyridine calcium channel blocking agent. Nifedipine inhibits the transmembrane influx of extracellular calcium ions into myocardial and vascular smooth muscle cells, causing dilatation of the main coronary and systemic arteries and decreasing myocardial contractility. This agent also inhibits the drug efflux pump P-glycoprotein which is overexpressed in some multi-drug resistant tumors and may improve the efficacy of some antineoplastic agents.

Rosuvastatin calcium (ZD4522) , a selective and competitive inhibitor of hepatic hydroxymethyl-glutaryl coenzyme A (HMG-CoA) reductase, has antilipidemic activity.

IK1 inhibitor PA-6 (PA-6) is a selective and potent inhibitor of IK1 (KIR2.x ion-channel-carried inward rectifier current) with an IC50 of 12-15 nM for human and mouse KIR2.x currents.

ML365 is a novel selective small molecule inhibitor of TASK1(KCNK3).

Dofetilide (UK 68789) is a sulfonamide class III antiarrhythmic agent and potassium channel blocker. Dofetilide selectively blocks cardiac ion channels of the rapid component of the delayed rectifier potassium current Ikr. This antiarrhythmic agent prolongs cardiac action potential duration and effective refractory period due to delayed repolarization without affecting conduction velocity. This results in a normal sinus rhythm. Dofetilide is used in the treatment of atrial fibrillation and flutter.