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-19216
    KR-30450
    		Activator
    KR-30450 (SKP 450) is a potent K+ATP opener, and a potassium channel activator. KR-30450 exerts more potent cardioprotective effects than Lemakalim (HY-14255). KR-30450 significantly improves reperfusion cardiac function. KR-30450 significantly attenuates reperfusion contracture and lactate dehydrogenase release.
    KR-30450
  • HY-B0682AR
    Mitiglinide calcium hydrate (Standard)
    		Antagonist
    Mitiglinide (calcium hydrate) (Standard) is the analytical standard of Mitiglinide (calcium hydrate). This product is intended for research and analytical applications. Mitiglinide calcium hydrate (KAD-1229), an insulinotropic agent, is an ATP-sensitive K+ (KATP) channel antagonist. Mitiglinide calcium hydrate is highly specific to the Kir6.2/SUR1 complex (the pancreatic beta-cell KATP channel). Mitiglinide Calcium hydrate can be used for the research of type 2 diabetes.
    Mitiglinide calcium hydrate (Standard)
  • HY-10562AR
    Ketanserin tartrate (Standard)
    		Inhibitor
    Ketanserin (tartrate) (Standard) is the analytical standard of Ketanserin (tartrate). This product is intended for research and analytical applications. Ketanserin (R41468) tartrate is a selective 5-HT2 receptor antagonist. Ketanserin tartrate also blocks hERG current (IhERG) in a concentration-dependent manner (IC50=0.11 μM).
    Ketanserin tartrate (Standard)
  • HY-110011R
    Cromakalim (Standard)
    Cromakalim (Standard) is the analytical standard of Cromakalim. This product is intended for research and analytical applications. 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 (Standard)
  • HY-B0433AR
    Quinine hydrochloride dihydrate (Standard)
    		Inhibitor
    Quinine (hydrochloride dihydrate) (Standard) is the analytical standard of Quinine (hydrochloride dihydrate). This product is intended for research and analytical applications. Quinine hydrochloride dihydrate (Qualaquin) is an orally active and can be used in anti-malarial studies. Quinine hydrochloride dihydrate 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 hydrochloride dihydrate (Standard)
  • HY-122104
    UCL-1848 TFA
    		Inhibitor
    UCL-1848 TFA is a hSK1 blocker with an IC50 value of 1.1 nM. hSK1 is a small conductance calcium-activated potassium channel.
    UCL-1848 TFA
  • HY-N1504R
    Loureirin B (Standard)
    		Inhibitor
    Loureirin B (Standard) is the analytical standard of Loureirin B. This product is intended for research and analytical applications. Loureirin B, a flavonoid extracted from Dracaena cochinchinensis, is an inhibitor of plasminogen activator inhibitor-1 (PAI-1), with an IC50 of 26.10 μM; Loureirin B also inhibits KATP, the phosphorylation of ERK and JNK, and has anti-diabetic activity.
    Loureirin B (Standard)
  • HY-B1302R
    Quinidine hydrochloride monohydrate (Standard)
    		Inhibitor
    Quinidine hydrochloride monohydrate (Standard) is the analytical standard of Quinidine hydrochloride monohydrate. This product is intended for research and analytical applications. Quinidine hydrochloride monohydrate is an anti-arrythmic agent which is also a potent blocker of K+ channel with an IC50 of 19.9 μM.
    Quinidine hydrochloride monohydrate (Standard)
  • HY-14286R
    Levosimendan (Standard)
    		Activator
    Levosimendan (Standard) is the analytical standard of Levosimendan. This product is intended for research and analytical applications. Levosimendan (Simsndan; OR-1259) is a calcium sensitiser used in the management of acutely decompensated congestive heart failure.
    Levosimendan (Standard)
  • HY-100276R
    Naminidil (Standard)
    		Agonist
    Naminidil (Standard) is the analytical standard of Naminidil (HY-100276). This product is intended for research and analytical applications. Naminidil is a cyanoguanidine KATP opener.
    Naminidil (Standard)
  • HY-108586R
    NS3623 (Standard)
    		Activator
    NS3623 (Standard) is the analytical standard of NS3623 (HY-108586). This product is intended for research and analytical applications. NS3623 is an activator of human ether-a-go-go-related gene (hERG1/KV11.1) potassium channels. NS3623 activates the IKr and Ito currents and has antiarrhythmic effect. NS3623 has a dual mode of action, being an inhibitor of hERG1 channels.
    NS3623 (Standard)
  • HY-106017
    Nerispirdine
    		Inhibitor
    Nerispirdine is an ion channel inhibitor with IC50s of 3.6, 3.7 and 11.9 μM against K(v)1.1, K(v)1.2 and voltage-dependent Na(+) channel, respectively. Nerispirdine is a 4-aminopyridine (4-AP, HY-B0604) derivative and can be utilized in research on neurological disorders.
    Nerispirdine
  • HY-101396R
    ICA-069673 (Standard)
    		Activator
    ICA-069673 (Standard) is the analytical standard of ICA-069673 (HY-101396). This product is intended for research and analytical applications. 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 (Standard)
  • HY-115014
    Cibenzoline succinate
    		Inhibitor
    Cibenzoline succinate (Cifenline succinate) is the succinate form of Cibenzoline (HY-106577). Cibenzoline succinate is an inhibitor for ATP-sensitive potassium (KATP) channel by affecting the pore-forming Kir6.2 subunit with IC50 of 22.2 µM. Cibenzoline succinate affects insulin secretion and exhibits antiarrhythmic and antidiabetic activities.
    Cibenzoline succinate
  • HY-118843
    Lombazole
    Lombazole is an antimicrobial compound with activity that inhibits cell membrane synthesis. Lombazole had little effect on K+ permeability in S. aureus. Lombazole inhibited only de novo synthesis of cell enclosure in S. aureus, and this effect occurred before growth was affected. The main effect of lombazole was through inhibition of lipid synthesis. Lombazole may have an effect on key steps in lipid biosynthesis, as inferred from the lack of changes in lipid patterns after treatment. Lombazole also inhibited the sterol C-14 demethylation step in Candida albicans.
    Lombazole
  • HY-100912R
    W-7 hydrochloride (Standard)
    		Inhibitor
    W-7 (hydrochloride) (Standard) is the analytical standard of W-7 (hydrochloride) (HY-100912). This product is intended for research and analytical applications. W-7 hydrochloride is a selective calmodulin antagonist. W-7 hydrochloride inhibits the Ca2+-calmodulin-dependent phosphodiesterase and myosin light chain kinase with IC50 values of 28 μM and 51 μM, respectively. W-7 hydrochloride induces apoptosis and has antitumor and vascular relaxing activity. W-7 hydrochloride is a blocker of Kv4.3 and can be used for research of arrhythmias.
    W-7 hydrochloride (Standard)
  • HY-12082
    GSK369796
    		Inhibitor
    GSK369796 is an affordable and effective antimalarial and inhibits hERG potassium ion channel repolarization with an IC50 of 7.5 μM.
    GSK369796
  • HY-N0267R
    Hypaconitine (Standard)
    		Inhibitor
    Hypaconitine (Standard) is the analytical standard of Hypaconitine. This product is intended for research and analytical applications. Hypaconitine inhibits the KCNH2 current with an IC50 of 8.1 nM, and exhibits cardiotoxicity. Hypaconitine inhibits TGF-β1-induced epithelial-mesenchymal transition (EMT) in A549 cell through the inhibition of NF-κB nuclear translocation. Hypaconitine acts as the neuromuscular blocker. Hypaconitine is orally active.
    Hypaconitine (Standard)
  • HY-129146
    Doxapram hydrochloride
    		Inhibitor
    Doxapram (hydrochloride) is a ventilatory stimulant. Doxapram (hydrochloride) inhibits TASK Tandem Pore (K2P) potassium channel function. Doxapram (hydrochloride) inhibits TASK-1 and TASK-3 with an EC50 values of 410 and 37 nM, respectively. Doxapram (hydrochloride) inhibits TASK-1/TASK-3 heterodimeric channel function with an EC50 value of 9 μM. Doxapram (hydrochloride) can be studied in research on apnea in preterm infants.
    Doxapram hydrochloride
  • HY-B0122SS1
    Topiramate-13C6-1
    		Activator
    Topiramate-13C6-1 (McN 4853-13C6-1; RWJ 17021-13C6-1) is 13C-labeled Topiramate (HY-B0122).
    Topiramate-<sup>13</sup>C<sub>6</sub>-1
Cat. No. Product Name / Synonyms Application Reactivity