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-147556
    SK3 Channel-IN-1
    		Modulator
    SK3 Channel-IN-1 (compound 7a) is a potent and specific SK3 channel modulator. SK3 Channel-IN-1 has efficient effect on breast cancer MDA-MB-435 cell migration while exhibiting low cytotoxicity in other cell lines. SK3 Channel-IN-1 can modulate ion channels’activity in cancer.
    SK3 Channel-IN-1
  • HY-120685
    WAY-125971
    		Antagonist
    WAY-125971, a propylamine analogue, is a potent and specific blocker of the rectifier potassium current (IK). WAY-125971 can be used for the study of arrhythmia.
    WAY-125971
  • HY-75839R
    Dronedarone Hydrochloride (Standard)
    		Inhibitor
    Dronedarone (Hydrochloride) (Standard) is the analytical standard of Dronedarone (Hydrochloride). This product is intended for research and analytical applications. Dronedarone Hydrochloride is a non-iodinated amiodarone derivative that inhibits Na+, K+ and Ca2+ currents.
    Dronedarone Hydrochloride (Standard)
  • HY-P3014
    Hongotoxin-1
    		Inhibitor
    Hongotoxin-1, isolated from venom of Centruroides limbatus, is the inhibitor of potassium channel, with IC50 for? Kv1.1, Kv1.2, Kv1.3, and Kv1.6 of 31 pM, 170 pM, 86 pM,and 6000 pM, respectively.
    Hongotoxin-1
  • HY-B1221S
    Flufenamic acid-d4
    		Activator
    Flufenamic acid-d4 is deuterium labeled Flufenamic acid. Flufenamic acid is a non-steroidal anti-inflammatory agent, inhibits cyclooxygenase (COX), activates AMPK, and also modulates ion channels, blocking chloride channels and L-type Ca2+ channels, modulating non-selective cation channels (NSC), activating K+ channels. Flufenamic acid binds to the central pocket of TEAD2 YBD and inhibits both TEAD function and TEAD-YAP-dependent processes, such as cell migration and proliferation.
    Flufenamic acid-d<sub>4</sub>
  • HY-116759
    VU0405601
    		Activator 99.93%
    VU0405601 is a potent KV11.1 channel activator. VU0405601 protects cardiac tissue from dofetilide (HY-B0232)-induced ventricular tachycardia.
    VU0405601
  • HY-W415121
    Bupivacaine hydrochloride monohydrate
    		Inhibitor
    Bupivacaine hydrochloride monohydrate is a NMDA receptor inhibitor. Bupivacaine hydrochloride monohydrate can block sodium, L-calcium, and potassium channels. Bupivacaine hydrochloride monohydrate potently blocks SCN5A channels with the IC50 of 69.5 μM. Bupivacaine hydrochloride monohydrate can be used for the research of chronic pain.
    Bupivacaine hydrochloride monohydrate
  • HY-101256
    ZM226600
    		Activator 99.95%
    ZM226600 is an ATP-sensitive potassium channel opener (EC50: 500 nM). ZM226600 inhibits bladder spontaneous activity.
    ZM226600
  • HY-152013S
    L-Palmitoylcarnitine-d3-1 hydrochloride
    		Inhibitor
    L-Palmitoylcarnitine-d3-1 (hydrochloride) is deuterium labeled L-Palmitoylcarnitine (chloride). L-Palmitoylcarnitine chloride, a long-chain acylcarnitine and a fatty acid metabolite, accumulates in the sarcolemma and deranges the membrane lipid environment during ischaemia. L-Palmitoylcarnitine chloride inhibits KATP channel activity, without affecting the single channel conductance, through interaction with Kir6.2.
    L-Palmitoylcarnitine-d<sub>3</sub>-1 hydrochloride
  • HY-163765
    Antimalarial agent 41
    		Inhibitor
    Antimalarial agent 41 (Compound 17) exhibits antimalarial activity, which inhibits Plasmodium falciparum with an IC50 of 40 nM (NF54 strain) and 76 nM (K1 strain). Antimalarial agent 41 is an inhibitor for P. falciparum phosphatidylinositol-4-kinase β (Pf PI4K) and hERG channel, with an IC50 of 53 nM and 3 μM. Antimalarial agent 41 exhibits cytotoxicity to CHO cells with an IC50 of 34 μM. Antimalarial agent 41 ameliorates the malaria infection and exhibits good pharmacokinetic characters in mouse models.
    Antimalarial agent 41
  • HY-B0480AR
    Brompheniramine (Standard)
    		Inhibitor
    Brompheniramine (Standard) is the analytical standard of Brompheniramine. This product is intended for research and analytical applications. Brompheniramine ((±)-Brompheniramine) is a potent and orally active antihistamine of the alkylamine class. Brompheniramine is a selective histamine H1 receptor antagonist with a Kd of 6.06 nM. Brompheniramine can block the hERG channels, calcium channels, and sodium channels with IC50s of 0.90 μM, 16.12 μM and 21.26 μM, respectively. Brompheniramine has anticholinergic, antidepressant and anesthetic properties and can be used for allergic rhinitis research[4].
    Brompheniramine (Standard)
  • HY-172140
    Ebio3
    		Inhibitor
    Ebio3 is a selective potassium channel (KCNQ2) inhibitor with an IC50 of 1.2 nM. Ebio3 binds to the KCNQ2 channel through its hydrophobic tail, causing the S6 helix to move inward, which leads to the closure of the inner gate. The inhibitory effect of Ebio3 is also effective in pathogenic mutants of KCNQ2 (such as R75C and I238L), where it can inhibit outward currents by more than 80%. Ebio3 is expected to be used in the research of neurological diseases such as epilepsy.
    Ebio3
  • HY-162666
    TMEM175 modulator 1
    		Modulator
    TMEM175 modulator 1 (compound 47) is a modulator of TMEM175 with an EC50 of 60 nM.
    TMEM175 modulator 1
  • HY-101436
    Sematilide
    		Inhibitor
    Sematilide (CK-1752) is a selective IKr channel blocker. Sematilide causes a concentration-dependent inhibition of the delayed rectifier K+ current (IC50=25 μM). Sematilide is a class III antiarrhythmic agent.
    Sematilide
  • HY-P5873
    Jingzhaotoxin-X
    		Inhibitor
    Jingzhaotoxin-X (JZTX-X) is a selective Kv4.2 and Kv4.3 potassium channels inhibitor. Jingzhaotoxin-X causes long-lasting mechanical hyperalgesia.
    Jingzhaotoxin-X
  • HY-142735
    KCa2 channel modulator 2
    KCa2 channel modulator 2 (compound 2q) is a potent subtype-selective positive modulator of KCa2 channel. KCa2 channel modulator 2 exhibits similar potency on the rat KCa2.2a and human KCa2.3 channel subtypes, with EC50s of 0.64 μM and 0.60 μM, respectively
    KCa2 channel modulator 2
  • HY-14182S
    Vernakalant-d6 hydrochloride
    		Inhibitor
    Vernakalant-d6 (hydrochloride) is deuterium labeled Vernakalant.
    Vernakalant-d<sub>6</sub> hydrochloride
  • HY-100607
    Landiolol
    		Control
    Landiolol (ONO1101) is a highly selective, ultra-short-acting competitive inhibitor of β1 adrenergic receptors. Landiolol specifically blocks cardiac β1 receptors, reducing heart rate and myocardial oxygen consumption. Landiolol inhibits TNF-α-induced excessive mitochondrial oxygen consumption and reactive oxygen species production in a sepsis model, alleviating renal injury. Landiolol has little effect on cardiac ion channels (such as L-type calcium current and inward rectifier potassium current) and has a weak negative inotropic effect. Landiolol can be used for perioperative tachycardia control and protection studies of sepsis-related acute kidney injury.
    Landiolol
  • HY-P3064
    Scyllatoxin
    		Antagonist
    Scyllatoxin (Leiurotoxin I) is a peptide toxin, it can be isolated from the venom of the scorpion (Leiurus quinquestriatus hebraeus). Scyllatoxin is a blocker of small-conductance KCa (SK) channel. Scyllatoxin enhances both norepinephrine (NE) and epinephrine (Epi) release in vivo.
    Scyllatoxin
  • HY-P1786
    Allatostatin II
    Allatostatin II is a decapeptid. Allatostatins are pleiotropic neuropeptides for inhibition of juvenile hormone synthesis in insects.
    Allatostatin II
Cat. No. Product Name / Synonyms Application Reactivity