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-150555
    P-CAB agent 1
    P-CAB agent 1 (compound B19) is a highly potent potassium-competitive acid blocker agent with an IC50 value of 60.50 nM for H+/K+-ATPase. P-CAB agent 1 has acceptable oral absorption in rats. P-CAB agent 1 can be used for researching acid-related disorders (ARDs).
    P-CAB agent 1
  • HY-129210
    KMUP-4
    		Activator
    KMUP-4, as a xanthine derivative with cGMP-enhancing activity, induces aortic relaxation through endothelium-dependent and independent mechanisms. KMUP-4 increases cytoplasmic cyclic guanosine monophosphate (cGMP) and cyclic adenosine monophosphate (cAMP) levels by inhibiting phosphodiesterases (PDEs) and activating K+ channels. KMUP-4 can be used in the study of cardiovascular diseases.
    KMUP-4
  • HY-108574
    CP 339818 hydrochloride
    		Inhibitor 99.61%
    CP 339818 hydrochloride is a nonpeptide and selective Kv1.3 (IC50 value of ~200 nM) blocker. CP 339818 hydrochloride also inhibits Kv1.4 channels. CP 339818 hydrochloride is a significantly less potent blocker of Kv1.1, Kv1.2, Kv1.5, Kv1.6, Kv3.1-4, and Kv4.2. CP 339818 hydrochloride potently blocks the C-type inactivated conformation of Kv1.3 and suppresses T cell activation.
    CP 339818 hydrochloride
  • HY-P5917
    Vm24-toxin
    		Inhibitor
    Vm24-toxin (Vaejovis mexicanus peptide 24), a 36-residue peptide, is a potent and selective Kv1.3 blocker with a Kd of ~3 pM in lymphocytes. Vm24-toxin shows >1500-fold affinity for Kv1.3 over other assayed potassium channels. Vm24-toxin folds into a distorted cystine-stabilized α/β motif consisting of a single-turn α-helix and a three-stranded antiparallel β-sheet, stabilized by four disulfide bridges. Vm24-toxin attenuates the CD4+ effector memory T cell response to T cell receptor (TCR) stimulation.
    Vm24-toxin
  • HY-W747594
    SDZ PCO 400
    		Modulator
    SDZ PCO 400 is a potassium channel modulator that relaxes airway smooth muscle and reverses airway obstruction caused by intravenous bronchospasmodics.
    SDZ PCO 400
  • HY-B1109R
    N-Acetylprocainamide (Standard)
    		Inhibitor
    Cimetidine (hydrochloride) (Standard) is the analytical standard of Cimetidine (hydrochloride). This product is intended for research and analytical applications. Cimetidine (SKF-92334) hydrochloride is an orally active and inverse histamine H2 receptor antagonist with a Ki of 0.6 μM. Cimetidine hydrochloride is a gastric acid reducer, and can be used for duodenal and gastric ulcers research. Cimetidine hydrochloride has anti-cancer and anti-inflammatory activity.
    N-Acetylprocainamide (Standard)
  • HY-B0232R
    Dofetilide (Standard)
    		Inhibitor
    Dofetilide (Standard) is the analytical standard of Dofetilide. This product is intended for research and analytical applications. Dofetilide (UK 68789), as a class III antiarrhythmic agent, is an orally active, potent and specific IKr blocker. Dofetilide can be used for the research of cardiovascular disease.
    Dofetilide (Standard)
  • HY-106577A
    (-)-(S)-Cibenzoline
    		Inhibitor
    (-)-(S)-Cibenzoline (Escibenzoline), a S(+)-enantiomer of Cibenzoline, is an antiarrhythmic agent.
    (-)-(S)-Cibenzoline
  • HY-170377
    ER degrader 10
    		Inhibitor
    ER degrader 10 (Compound 51) is a selective, orally active degrader and antagonist for estrogen receptor (ER) with a DC50 of 0.43 nM and an IC50 of 0.56 nM. ER degrader 10 inhibits the proliferation of ER-positive cells with IC50s of 0-15 nM. ER degrader 10 exhibits a weak inhibitory activity against hERG channel with an IC50 >40 μM. ER degrader 10 is blood-brain barrier penetrable with a brain/plasma ratio (Kp) of 3.05. ER degrader 10 exhibits antitumor efficacy in mice model.
    ER degrader 10
  • HY-W013175R
    Uridine 5'-monophosphate disodium salt (Standard)
    		Activator
    Uridine 5'-monophosphate (disodium salt) (Standard) is the analytical standard of Uridine 5'-monophosphate (disodium salt). This product is intended for research and analytical applications. Uridine 5'-monophosphate (5'-Uridylic acid) disodium salt is an orally active mitochondrial ATP-dependent potassium channel activator that has a protective effect on the heart. Uridine 5'-monophosphate disodium salt can promote the synthesis of CDP-choline and induce apoptosis in intestinal epithelial cells, which is beneficial for gut development and reduces diarrhea.
    Uridine 5'-monophosphate disodium salt (Standard)
  • HY-P2707
    α-Dendrotoxin
    		Inhibitor
    α-Dendrotoxin (α-DTX) is a small molecule peptide neurotoxin isolated from the venom of the African green mamba snake (Dendroaspis angusticeps). α-Dendrotoxin is also a KV1.1, KV1.2, KV1.6 and ASIC channel blocker. α-Dendrotoxin blocks potassium channels, lowers the threshold of neuronal action potentials, and increases the frequency of action potentials, thereby enhancing neuronal excitability. α-Dendrotoxin can be used in neurotoxicology research.
    α-Dendrotoxin
  • HY-12520B
    (R)-SKF 38393 hydrochloride
    		Inhibitor
    (R)-SKF 38393 ((±)-SKF-38393) hydrochloride is a potent and selective D1 dopamine receptor antagonist. (R)-SKF 38393 hydrochloride inhibits G protein-coupled inwardly rectifying potassium (GIRK) channel.
    (R)-SKF 38393 hydrochloride
  • HY-W010668R
    Quinine sulfate hydrate (Standard)
    		Inhibitor
    Quinine (sulfate hydrate) (Standard) is the analytical standard of Quinine (sulfate hydrate). This product is intended for research and analytical applications. 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 (Standard)
  • HY-B0682S1
    (2R)-Mitiglinide-d5 calcium
    		Antagonist
    (2R)-Mitiglinide-d5 (calcium) is deuterium labeled Mitiglinide. Mitiglinide (KAD-1229), an insulinotropic agent, is an ATP-sensitive K+ (KATP) channel antagonist. Mitiglinide is highly specific to the Kir6.2/SUR1 complex (the pancreatic beta-cell KATP channel). Mitiglinide can be used for the research of type 2 diabetes.
    (2R)-Mitiglinide-d<sub>5</sub> calcium
  • HY-170832
    Menin–KMT2A-IN-1
    		Inhibitor
    Menin–KMT2A-IN-1 (Compound 20) is the inhibitor for menin–KMT2A that binds to menin with an IC50 of 8 nM, and inhibits the interaction between menin and lysine methyltransferase 2A (KMT2A). Menin–KMT2A-IN-1 inhibits hERG with an IC50 of 65 μM. Menin–KMT2A-IN-1 inhibits cell MV4-11 with an IC50 of 74 nM. Menin–KMT2A-IN-1 exhibits good pharmacokinetic characteristics in CD-1 mouse with an orally bioavailability of 74%.
    Menin–KMT2A-IN-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-B1430R
    Butamben (Standard)
    		Inhibitor
    Butamben (Standard) is the analytical standard of Butamben. This product is intended for research and analytical applications. Butamben (Butyl 4-aminobenzoate) results in long-lasting relief from pain, without impairing motor function or other sensory functions.
    Butamben (Standard)
  • HY-147256
    Cavutilide
    		Inhibitor
    Cavutilide (Niferidil) is a class III antiarrhythmic agent that inhibits hERG K+ channel. Cavutilide has the potential for the study of persistent atrial fibrillation.
    Cavutilide
  • HY-B1751E
    Quinidine polygalacturonate
    		Inhibitor
    Quinidine polygalacturonate is an antiarrhythmic agent. Quinidine polygalacturonate is a potent, orally active, selective cytochrome P450db inhibitor. Quinidine polygalacturonate is also a K+ channel blocker with an IC50 of 19.9 μM, and can induce apoptosis. Quinidine polygalacturonate can be used for malaria research.
    Quinidine polygalacturonate
  • HY-108400
    SCH-23390 maleate
    		Inhibitor
    SCH-23390 maleate (R-(+)-SCH-23390 maleate) is a potent and selective dopamine D1-like receptor antagonist with Kis of 0.2 nM and 0.3 nM for the D1 and D5 receptor, respectively. SCH-23390 maleate is a potent and high efficacy human 5-HT2C receptor agonist with a Ki of 9.3 nM. SCH-23390 maleate also binds with high affinity to the 5-HT2 and 5-HT1C receptors. SCH-23390 maleate inhibits G protein-coupled inwardly rectifying potassium (GIRK) channels with an IC50 of 268 nM.
    SCH-23390 maleate
Cat. No. Product Name / Synonyms Application Reactivity