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-B0563B
    Ropivacaine hydrochloride
    		Inhibitor 99.93%
    Ropivacaine hydrochloride is a potent sodium channel blocker and blocks impulse conduction via reversible inhibition of sodium ion influx in nerve fibrese. Ropivacaine is also an inhibitor of K2P (two-pore domain potassium channel) TREK-1 with an IC50 of 402.7 μM in COS-7 cell's membrane. Ropivacaine is widely used for neuropathic pain management in vivo.
    Ropivacaine hydrochloride
  • HY-P0191A
    Charybdotoxin TFA
    		Inhibitor 98.84%
    Charybdotoxin TFA, a 37-amino acid peptide, is a K+ channel blocker.
    Charybdotoxin TFA
  • HY-17398
    Mitiglinide calcium
    		Antagonist 98.82%
    Mitiglinide Calcium (KAD-1229 anhydrous), an insulinotropic agent, is an ATP-sensitive K+ (KATP) channel antagonist. Mitiglinide Calcium is highly specific to the Kir6.2/SUR1 complex (the pancreatic beta-cell KATP channel). Mitiglinide Calcium can be used for the research of type 2 diabetes.
    Mitiglinide calcium
  • HY-117639
    AUT1
    		Modulator 99.93%
    AUT1 is a recombinant human Kv3 channel modulator. AUT1 modulates Kv3.1b and Kv3.2a channels in human recombinant with pEC50 values of 5.33 and 5.31 μM, respectively. AUT1 can be used for the research of disorders associated with dysfunction of inhibitory feedback in corticolimbic circuits, such as schizophrenia.
    AUT1
  • HY-B0551A
    Doxapram hydrochloride hydrate
    		Inhibitor 99.34%
    Doxapram hydrochloride hydrate inhibits TASK-1, TASK-3, TASK-1/TASK-3 heterodimeric channel function with EC50 of 410 nM, 37 μM, 9 μM, respectively.
    Doxapram hydrochloride hydrate
  • HY-18719
    Endoxifen (Z-isomer)
    		Inhibitor 99.20%
    Endoxifen Z-isomer is the most important Tamoxifen metabolite, inducing an anti-estrogenic effect in breast cancer cells expressing ERα. Endoxifen Z-isomer inhibits hERG. This effect is concentration-dependent, with an IC50 value of 1.6 μM.
    Endoxifen (Z-isomer)
  • HY-101396
    ICA-069673
    		Activator 99.65%
    ICA-069673 is a KCNQ2/Q3 potassium channel activator. ICA-069673 demonstrates greater selectivity for KV7.2/7.3 over KV7.3/KV7.5, with EC50s of 0.69 μM and 14.3 μM, respectively. ICA-069673 inhibits spontaneous phasic and nerve-evoked contractions in guinea pig detrusor smooth muscle (DSM). ICA-069673 also decreases the global intracellular Ca(2+) concentration in DSM cells.
    ICA-069673
  • HY-B2133
    Cloperastine hydrochloride
    		Inhibitor 99.39%
    Cloperastine hydrochloride inhibits the hERG K+ currents in a concentration-dependent manner with an IC50 value of 27 nM.
    Cloperastine hydrochloride
  • HY-110192
    ML 297
    		Activator 99.14%
    ML 297 (VU 0456810) is a potent and selective GIRK1/2 activator, with an EC50 of 0.16 μM. ML 297 is potential for the treatment of epilepsy.
    ML 297
  • HY-P0190
    Iberiotoxin
    		Inhibitor 98.63%
    Iberiotoxin is a toxin isolated from Buthus tamulus scorpion venom. Iberiotoxin is a selective high conductance high conductance Ca2+-activated K+ channel inhibitor with a Kd of ~1 nM. Iberiotoxin does not block other types of voltage-dependent ion channels.
    Iberiotoxin
  • HY-122697
    ML418
    		Antagonist 99.89%
    ML418 is a potent, selective and CNS penetrating Kir7.1 potassium channel blocker. ML418 inhibits Kir7.1 with an IC50 value of 0.31 μM. ML418 can be used for the research of neurological, cardiovascular, endocrine and muscle disorders.
    ML418
  • HY-P0256A
    Apamin TFA
    		Inhibitor 98.35%
    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-N6790
    Nonactin
    		Inhibitor ≥99.0%
    Nonactin is a naturally occurring macrotetrolide antibiotic from Streptomyces griseus. Nonactin acts as an ionophore for monovalent cations, including K+, and NH4+. Nonactin is able to uncouple the oxidative phosphorylation (OXPHOS) of mitochondria. Nonactin selectively induces apoptosis in cell lines harboring active mutant β-catenin. Nonactin inhibits the surface expression of endogenous HSP60.
    Nonactin
  • HY-107414
    SKA-121
    		Activator 98.64%
    SKA-121 is a selective KCa3.1 activator. SKA-121 exhibits EC50s of 109 nM and 4.4 μM for KCa3.1 and KCa2.3, respectively.
    SKA-121
  • HY-157557
    AP30663
    		Inhibitor 99.95%
    AP30663 is a KCa2 channel inhibitor that can be used for the study of atrial fibrillation.
    AP30663
  • HY-110162
    QO 58
    		98.92%
    QO 58 is a potent modulator of K(v)7 channels. QO-58 increases the current amplitudes, shifts the voltage-dependent activation curve in a more negative direction and slows the deactivation of K(v)7.2/K(v)7.3 currents. QO-58 has the potential for the research of diseases associated with neuronal hyperexcitability.
    QO 58
  • HY-108573
    P-1075
    		Activator 99.81%
    P-1075 is a potent activator of sulfonylurea receptor 2-associated ATP-sensitive potassium channels (SUR2-KIR6), with an EC50 value of 45 nM for SUR2B-KIR6 channel activation. P-1075 also P1075 opens mitochondrial K(ATP) channels and generates reactive oxygen species resulting in cardioprotection of rabbit hearts.
    P-1075
  • HY-15707
    NS6180
    		Inhibitor 99.80%
    NS6180 is a new orally active KCa3.1 channel inhibitor. NS6180 inhibits cloned human KCa3.1 channels with an IC50value of 9 nM. NS6180 can be used for the research of inflammatory bowel disease (IBD) .
    NS6180
  • HY-B1430
    Butamben
    		Inhibitor 99.82%
    Butamben (Butyl 4-aminobenzoate) results in long-lasting relief from pain, without impairing motor function or other sensory functions.
    Butamben
  • HY-110011
    Cromakalim
    		99.39%
    Cromakalim is a potassium channel opener. Cromakalim can be used as a bronchodilator in asthma. Cromakalim inhibits the spontaneous tone of human isolated bronchi in a concentration-related manner being nearly as effective as isoprenaline or theophylline.
    Cromakalim
Cat. No. Product Name / Synonyms Application Reactivity