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

HCN Channel

Hyperpolarization activated cyclic nucleotide gated channels

Hyperpolarization- and Cyclic Nucleotide-gated (HCN) channels are a family of six transmembrane domain, single pore-loop, hyperpolarization activated, non-selective cation channels. The HCN family consists of four members (HCN1-4). HCN channels represent the molecular correlates of I(h), a hyperpolarization-activated current best known for its role in controlling heart rate and in the regulation of neuronal resting membrane potential and excitability.

HCN channels are unique among vertebrate voltage-gated ion channels, in that they have a reverse voltage-dependence that leads to activation upon hyperpolarization. HCN channels are encoded by four genes (HCN1-4) and are widely expressed throughout the heart and the central nervous system.

HCN Channel Related Products (26):

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-114540
    CP-339818
    Inhibitor
    CP-339818 is a non-peptide Kv1.3 channel (IC50 = 200 nM) and Kv1.4 channel blocker. CP 339818 inhibits HCN channel with IC50s of 18.9 μM and 43.4 μM against HCN1 and HCN4 (high Cl-). CP-339818 has significantly weaker blocking effects on Kv1.1, Kv1.2, Kv1.5, Kv1.6, Kv3.1-4, and Kv4.2 channels. CP-339818 selectively blocked Kv1.3, thereby inhibiting the activation process of human T cells. CP-339818 can be used to study the physiological functions of HCN and Kv channels.
    CP-339818
  • HY-13422R
    Zatebradine hydrochloride (Standard)
    Antagonist
    Zatebradine (hydrochloride) (Standard) is the analytical standard of Zatebradine (hydrochloride). This product is intended for research and analytical applications. Zatebradine (UL-FS-49 (free base)) is a potent inhibitor of hyperpolarization-activated cyclic nucleotide-gated (HCN) channels with an IC50 values 1.96 μM. Zatebradine blocks the slow inward current through human HCN1, HCN2, HCN3 and HCN4 channels, with IC50 values of 1.83 μM, 2.21 μM, 1.90 μM and 1.88 μM, respectively.
    Zatebradine hydrochloride (Standard)
  • HY-B0162AR
    Ivabradine hydrochloride (Standard)
    Inhibitor
    Ivabradine (hydrochloride) (Standard) is the analytical standard of Ivabradine (hydrochloride). This product is intended for research and analytical applications. Ivabradine hydrochloride is a potent and orally active HCN (hyperpolarization-activated cyclic nucleotide-gated) channel blocker that inhibits the cardiac pacemaker current (If). Ivabradine hydrochloride reduces dose-dependently heart rate without modification of blood pressure. Ivabradine hydrochloride shows anticonvulsant, anti-ischaemic and anti-anginal activity.
    Ivabradine hydrochloride (Standard)
  • HY-137639
    Sp-8-Br-cGMPS
    Agonist
    Sp-8-Br-cGMPS is an analog of cGMP. Sp-8-Br-cGMPS is an agonist for cGMP-gated cation channels (CNG channels), with an EC50 of 106.5 μM. Sp-8-Br-cGMPS induces the currents, without the ability to stabilize the channel open state as a full agonist.
    Sp-8-Br-cGMPS
  • HY-137016
    8-Pcpt-cGMP
    Agonist
    8-Pcpt-cGMP is an agonist for cyclic nucleotide-gated (CNG) channel with an EC50 of 0.5 μM. 8-Pcpt-cGMP exhibits good membrane permeability. 8-Pcpt-cGMP can be used in studies about the function of CNG channels in visual signal transduction and olfactory transduction.
    8-Pcpt-cGMP
  • HY-135110A
    Rp-8-Br-cGMPS
    Activator
    Rp-8-Br-cGMPS (Rp-8-bromo-Cyclic GMPS) sodium salt is a potent Ca2+-ATPase activator. Rp-8-Br-cGMPS is also an agonist of the rod CNG channel and an inhibitor of PKG. Rp-8-Br-cGMPS sodium salt mediates cytosolic Ca2+ reduction by activating Ca2+-ATPase and subsequently removing Ca2+ from the cell.
    Rp-8-Br-cGMPS