A voltage-gated potassium channel alpha subunit KCNA4 that is encoded in the genome of human. []
HPCN2;
Voltage-gated K(+) channel HuKII;
Voltage-gated potassium channel HBK4;
Voltage-gated potassium channel HK1;
Voltage-gated potassium channel subunit Kv1.4
| Timeframe | Studies on this Protein(%) | All Drugs % |
|---|---|---|
| pre-1990 | 0 (0.00) | 18.7374 |
| 1990's | 0 (0.00) | 18.2507 |
| 2000's | 1 (50.00) | 29.6817 |
| 2010's | 1 (50.00) | 24.3611 |
| 2020's | 0 (0.00) | 2.80 |
| Drug | Taxonomy | Measurement | Average (mM) | Bioassay(s) | Publication(s) |
|---|---|---|---|---|---|
| N-(2-aminoethyl)-5-chloro-1-naphthalenesulfonamide | Homo sapiens (human) | IC50 | 54,954,100,000.0000 | 1 | 1 |
| clathrodin | Homo sapiens (human) | IC50 | 30.0000 | 1 | 1 |
| oroidin | Homo sapiens (human) | IC50 | 2.1000 | 1 | 1 |
| hymenidin | Homo sapiens (human) | IC50 | 5.3000 | 1 | 1 |
This protein enables 5 target(s):
| Target | Category | Definition |
|---|---|---|
| voltage-gated potassium channel activity | molecular function | Enables the transmembrane transfer of a potassium ion by a voltage-gated channel. A voltage-gated channel is a channel whose open state is dependent on the voltage across the membrane in which it is embedded. [GOC:mtg_transport, ISBN:0815340729] |
| protein binding | molecular function | Binding to a protein. [GOC:go_curators] |
| potassium ion binding | molecular function | Binding to a potassium ion (K+). [GOC:mah] |
| voltage-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential | molecular function | Voltage-gated ion channel activity, occurring in the presynaptic membrane, involved in regulation of presynaptic membrane potential. This is a key step in synaptic transmission, following the arrival of an action potential at the synapse. [GOC:dos] |
| delayed rectifier potassium channel activity | molecular function | Enables the transmembrane transfer of a potassium ion by a delayed rectifying voltage-gated channel. A delayed rectifying current-voltage relation is one where channel activation kinetics are time-dependent, and inactivation is slow. [GOC:mah, PMID:11343411, PMID:2462513] |
This protein is located in 4 target(s):
| Target | Category | Definition |
|---|---|---|
| plasma membrane | cellular component | The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins. [ISBN:0716731363] |
| membrane | cellular component | A lipid bilayer along with all the proteins and protein complexes embedded in it and attached to it. [GOC:dos, GOC:mah, ISBN:0815316194] |
| axon | cellular component | The long process of a neuron that conducts nerve impulses, usually away from the cell body to the terminals and varicosities, which are sites of storage and release of neurotransmitter. [GOC:nln, ISBN:0198506732] |
| axon initial segment | cellular component | Portion of the axon proximal to the neuronal cell body, at the level of the axon hillock. The action potentials that propagate along the axon are generated at the level of this initial segment. [GOC:nln, GOC:sl, PMID:1754851, PMID:21551097] |
This protein is active in 3 target(s):
| Target | Category | Definition |
|---|---|---|
| dendritic spine | cellular component | A small, membranous protrusion from a dendrite that forms a postsynaptic compartment, typically receiving input from a single presynapse. They function as partially isolated biochemical and an electrical compartments. Spine morphology is variable:they can be thin, stubby, mushroom, or branched, with a continuum of intermediate morphologies. They typically terminate in a bulb shape, linked to the dendritic shaft by a restriction. Spine remodeling is though to be involved in synaptic plasticity. [GOC:nln] |
| axon | cellular component | The long process of a neuron that conducts nerve impulses, usually away from the cell body to the terminals and varicosities, which are sites of storage and release of neurotransmitter. [GOC:nln, ISBN:0198506732] |
| membrane | cellular component | A lipid bilayer along with all the proteins and protein complexes embedded in it and attached to it. [GOC:dos, GOC:mah, ISBN:0815316194] |
This protein is part of 1 target(s):
| Target | Category | Definition |
|---|---|---|
| voltage-gated potassium channel complex | cellular component | A protein complex that forms a transmembrane channel through which potassium ions may cross a cell membrane in response to changes in membrane potential. [GOC:mah] |
This protein is involved in 5 target(s):
| Target | Category | Definition |
|---|---|---|
| potassium ion transport | biological process | The directed movement of potassium ions (K+) into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore. [GOC:ai] |
| protein homooligomerization | biological process | The process of creating protein oligomers, compounds composed of a small number, usually between three and ten, of identical component monomers. Oligomers may be formed by the polymerization of a number of monomers or the depolymerization of a large protein polymer. [GOC:ai] |
| potassium ion transmembrane transport | biological process | A process in which a potassium ion is transported from one side of a membrane to the other. [GOC:mah] |
| regulation of presynaptic membrane potential | biological process | Any process that modulates the potential difference across a presynaptic membrane. [GOC:dph, GOC:ef] |
| action potential | biological process | A process in which membrane potential cycles through a depolarizing spike, triggered in response to depolarization above some threshold, followed by repolarization. This cycle is driven by the flow of ions through various voltage gated channels with different thresholds and ion specificities. [GOC:dph, GOC:go_curators, GOC:tb, ISBN:978-0-07-139011-8] |