1. Signaling Pathways
  2. Membrane Transporter/Ion Channel
  3. Potassium Channel

Potassium Channel

KcsA

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-113066S3
    Guanosine 5'-diphosphate-13C10,15N5 dilithium
    Activator
    Guanosine 5'-diphosphate-13C10,15N5 (GDP-13C10,15N5) dilithium is 13C and 15N-labeled Guanosine 5'-diphosphate (HY-113066). Guanosine 5'-diphosphate (GDP) is a nucleoside diphosphate that activates adenosine 5'-triphosphate-sensitive K+ channel. Guanosine 5'-diphosphate is a potential iron mobilizer, which prevents the hepcidin-ferroportin interaction and modulates the interleukin-6 (IL-6)/stat-3 pathway. Guanosine 5'-diphosphate can be used in the research of inflammation, such as anemia of inflammation (AI).
    Guanosine 5'-diphosphate-<sup>13</sup>C<sub>10</sub>,<sup>15</sup>N<sub>5</sub> dilithium
  • HY-183206
    UR 8225
    Activator
    UR 8225 is an orally active ATP-sensitive K+ channel activator with vasodilator, smooth muscle relaxant, antihypertensive, and bronchodilator activities. UR 8225 induces membrane hyperpolarization by increasing outward K+ conductance and reduces Ca2+ influx through voltage-gated L-type Ca2+ channels. UR 8225 reduces total peripheral vascular resistance, shortens cardiac action potential duration, inhibits agonist-induced Ca2+ influx, and stimulates renin release. UR 8225 induces reflex tachycardia but lacks β-adrenergic receptor blocking activity. UR 8225 is widely applicable to research in fields related to hypertension, myocardial ischemia, ventricular fibrillation, and other conditions.
    UR 8225
  • HY-106916
    Unoprostone
    Activator 99.0%
    Unoprostone, a prostaglandin F2α analog, is a large conductance Ca2+-activated K+ (BK) channels and ClC-2 type chloride channels activator. Unoprostone reduces oxidative stress- and light-induced retinal cell death, and phagocytotic dysfunction. Unoprostone reduces intraocular pressure and can be used for the study of glaucoma, ocular hypertension and retinitis pigmentosa.
    Unoprostone
  • HY-178233
    CAT335
    Activator
    CAT335 is a TREK activator. CAT335 selectively and irreversibly activates TREK-1CG∗. CAT335 can be used in the research of pain sensation, sleep, and intraocular pressure.
    CAT335
  • HY-B0252S3
    Hydrochlorothiazide-15N2,13C,d2
    Activator
    Hydrochlorothiazide-15N2,13C,d2 is 15N and deuterated labeled Hydrochlorothiazide (HY-B0252). Hydrochlorothiazide (HCTZ), an orally active diuretic agent of the thiazide class, inhibits transforming TGF-β/Smad signaling pathway. Hydrochlorothiazide has direct vascular relaxant effects via opening of the calcium-activated potassium (KCA) channel. Hydrochlorothiazide improves cardiac function, reduces fibrosis and has antihypertensive effect.
    Hydrochlorothiazide-<sup>15</sup>N<sub>2</sub>,<sup>13</sup>C,d<sub>2</sub>
  • HY-118172
    PD-307243
    Activator
    PD-307243 is a hERG channel activator. PD-307243 can be used for research of arrhythmias.
    PD-307243
  • HY-100381R
    Nigericin sodium salt (Standard)
    Activator
    Nigericin (sodium salt) (Standard) is the analytical standard of Nigericin (sodium salt). This product is intended for research and analytical applications. Nigericin sodium salt is an antibiotic derived from Streptomyces hygroscopicus that act as a K+/H+ ionophore, promoting K+/H+ exchange across mitochondrial membranes. Nigericin sodium salt is a NLRP3 activator. Nigericin sodium salt shows promising anti-cancer activities through decreasing intracellular pH (pHi), and inactivation of Wnt/β-catenin signals. Nigericin sodium salt induces pyroptosis through caspase 1/GSDMD in TNBC.
    Nigericin sodium salt (Standard)
  • HY-W709349
    Flupirtine hydrochloride
    Activator
    Flupirtine (D 9998) hydrochloride is an orally active, blood-brain barrier-crossing non-opioid analgesic and neuroprotective agent. Flupirtine hydrochloride is a neuronal potassium channel opener (Kv7 activator), a NMDA receptor antagonist and a GABA receptor activator. Flupirtine hydrochloride stabilizes blood-brain-barrier integrity, reduces oxidative stress and brain leukocyte infiltration, enhances angioneurogenesis, suppresses calcium influx, stabilizes neuronal resting membrane potential, and counteracts focal cerebral ischemia. Flupirtine hydrochloride exhibits analgesic, muscle relaxant properties, protects neurons from excitotoxic, ischemic, or cytokine-mediated death. Flupirtine hydrochloride functions as a non-opioid analgesic without antipyretic or antiphlogistic properties, shows no relevant affinity to opiate receptor. Flupirtine hydrochloride can be used for the research of focal cerebral ischemia, pain, Alzheimer’s disease, or multiple sclerosis.
    Flupirtine hydrochloride
  • HY-133240
    trans-AzoTAB
    Activator
    trans-AzoTAB is a photoresponsive potassium/sodium/calcium channel modulator and DNA-binding agent. trans-AzoTAB undergoes trans-cis isomerization driven by light, with variable polarity and DNA affinity. trans-AzoTAB also enhances voltage-gated potassium currents and inhibits sodium and calcium currents in cardiomyocytes, thereby reducing spontaneous electrical activity and excitation conduction velocity. In addition, trans-AzoTAB induces compaction and frozen conformation of λ-phage DNA, and non-sequence-dependently inhibits transcription and translation processes in the dark; its activity can be reversed and restored by visible light after activation with ultraviolet irradiation. trans-AzoTAB can serve as a probe for two-photon optical regulation of myocardial excitability, and is used to construct photoresponsive interfacial polymer structures.
    trans-AzoTAB
  • HY-138166R
    Rosuvastatin lactone (Standard)
    Activator
    Rosuvastatin lactone (Standard) is the analytical standard of Rosuvastatin lactone. This product is intended for research and analytical applications. Rosuvastatin lactone is a metabolite of Rosuvastatin (HY-17504A), a statin lipid-lowering agent and HMG-CoA inhibitor. Rosuvastatin lactone exhibits endothelium-independent and HMG-CoA reductase-independent vasorelaxant activity in rat aortic rings, and its vasorelaxant effect is jointly mediated by NO produced by inducible nitric oxide synthase (iNOS) located in vascular smooth muscle and activation of potassium channels. Rosuvastatin lactone itself has no lipid-lowering effect.
    Rosuvastatin lactone (Standard)
  • 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-101256
    ZM226600
    Activator 99.95%
    ZM226600 is an ATP-sensitive potassium channel opener (EC50: 500 nM). ZM226600 inhibits bladder spontaneous activity.
    ZM226600
  • HY-19116
    KRN-2391
    Activator
    KRN-2391 is a KATP channel opener with NO donor properties. KRN-2391 exerts dual inhibitory effects on overactive bladder (OAB) by activating KATP channels (causing cellular hyperpolarization and bladder smooth muscle relaxation) and releasing NO (enhancing relaxation via cGMP pathways). KRN-2391 is promising for research of OAB.
    KRN-2391
  • HY-171116
    Kv7.2/Kv7.3 activator-4
    Activator
    Kv7.2/Kv7.3 activator-4 (example 53) is a Kv7.2/Kv7.3 potassium channel activator that can be used in the research of epilepsy, neuropathic pain and other related diseases.
    Kv7.2/Kv7.3 activator-4
  • HY-181622
    TMEM175 modulator 3
    Activator
    TMEM175 modulator 3 (Compound 14) is a TMEM175 modulator. TMEM175 modulator 3 can be used in research on neurodegenerative diseases.
    TMEM175 modulator 3
  • HY-111996
    Kv3 activator-1
    Activator 99.41%
    Kv3 activator-1 is a Kv3 family voltage-gated potassium channel activator. Kv3 activator-1 reverses mechanical hyperalgesia in rat models of neuropathic and inflammatory pain, with rapid onset and long-lasting, dose-related effects. Kv3 activator-1 can be used for the research of pain.
    Kv3 activator-1
  • HY-101981S3
    Uridine 5'-monophosphate-13C9,15N2 dilithium
    Activator
    Uridine 5'-monophosphate-13C9,15N2 (5'- Uridylic acid-13C9,15N2) dilithium is 13C and 15N-labeled Uridine 5'-monophosphate (HY-101981). Uridine 5'-monophosphate (5'-Uridylic acid) is an orally active mitochondrial ATP-dependent potassium channel activator that has a protective effect on the heart. Uridine 5'-monophosphate 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-<sup>13</sup>C<sub>9</sub>,<sup>15</sup>N<sub>2</sub> dilithium
  • HY-160789
    C3001a
    Activator
    C3001a is a selective TREK-1 and TREK-2 channel activator with EC50 values of 12.81 μM and 11.31 μM, respectively. C3001a does not affect other two-pore domain K+ (K2P) channels. C3001a binds to the cryptic binding site formed by P1 and TM4 in TREK-1. C3001a can be used for the study of pain and pancreatitis.
    C3001a
  • HY-P0249B
    Phe-Met-Arg-Phe, amide acetate
    Activator
    Phe-Met-Arg-Phe, amide acetate dose dependently (ED50=23 nM) activates a K+ current in the peptidergic caudodorsal neurons.
    Phe-Met-Arg-Phe, amide acetate
Cat. No. Product Name / Synonyms Application Reactivity