KCNJ2
UniProt ID: P63252
Entrez ID: 3759
Protein name: Inward rectifier potassium channel 2 (Cardiac inward rectifier potassium channel) (Inward rectifier K(+) channel Kir2.1) (IRK-1) (hIRK1) (Potassium channel, inwardly rectifying subfamily J member 2)
External links: UniprotKB HGNC RefSeq COSMIC
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FUNCTION: Probably participates in establishing action potential waveform and excitability of neuronal and muscle tissues. Inward rectifier potassium channels are characterized by a greater tendency to allow potassium to flow into the cell rather than out of it. Their voltage dependence is regulated...
FUNCTION: Probably participates in establishing action potential waveform and excitability of neuronal and muscle tissues. Inward rectifier potassium channels are characterized by a greater tendency to allow potassium to flow into the cell rather than out of it. Their voltage dependence is regulated by the concentration of extracellular potassium; as external potassium is raised, the voltage range of the channel opening shifts to more positive voltages. The inward rectification is mainly due to the blockage of outward current by internal magnesium. Can be blocked by extracellular barium or cesium.
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GO - Biological processes (BP):
cardiac muscle cell action potential involved in contraction [GO:0086002]; cellular potassium ion homeostasis [GO:0030007]; cellular response to mechanical stimulus [GO:0071260]; magnesium ion transport [GO:0015693]; membrane depolarization during cardiac muscle cell action potential [GO:0086012]; m...
cardiac muscle cell action potential involved in contraction [GO:0086002]; cellular potassium ion homeostasis [GO:0030007]; cellular response to mechanical stimulus [GO:0071260]; magnesium ion transport [GO:0015693]; membrane depolarization during cardiac muscle cell action potential [GO:0086012]; membrane repolarization during action potential [GO:0086011]; membrane repolarization during cardiac muscle cell action potential [GO:0086013]; positive regulation of potassium ion transmembrane transport [GO:1901381]; potassium ion import across plasma membrane [GO:1990573]; potassium ion transmembrane transport [GO:0071805]; potassium ion transport [GO:0006813]; protein homotetramerization [GO:0051289]; regulation of cardiac muscle cell contraction [GO:0086004]; regulation of heart rate by cardiac conduction [GO:0086091]; regulation of ion transmembrane transport [GO:0034765]; regulation of membrane repolarization [GO:0060306]; regulation of resting membrane potential [GO:0060075]; regulation of skeletal muscle contraction via regulation of action potential [GO:0014861]; relaxation of cardiac muscle [GO:0055119]; relaxation of skeletal muscle [GO:0090076]
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GO - Molecular function (MF):
identical protein binding [GO:0042802]; inward rectifier potassium channel activity [GO:0005242]; phosphatidylinositol-4,5-bisphosphate binding [GO:0005546]; voltage-gated potassium channel activity involved in cardiac muscle cell action potential repolarization [GO:0086008]...
identical protein binding [GO:0042802]; inward rectifier potassium channel activity [GO:0005242]; phosphatidylinositol-4,5-bisphosphate binding [GO:0005546]; voltage-gated potassium channel activity involved in cardiac muscle cell action potential repolarization [GO:0086008]
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GO - Cellular component (CC):
dendritic spine [GO:0043197]; Golgi apparatus [GO:0005794]; integral component of plasma membrane [GO:0005887]; intercalated disc [GO:0014704]; intrinsic component of membrane [GO:0031224]; neuronal cell body [GO:0043025]; plasma membrane [GO:0005886]; rough endoplasmic reticulum [GO:0005791]; smoot...
dendritic spine [GO:0043197]; Golgi apparatus [GO:0005794]; integral component of plasma membrane [GO:0005887]; intercalated disc [GO:0014704]; intrinsic component of membrane [GO:0031224]; neuronal cell body [GO:0043025]; plasma membrane [GO:0005886]; rough endoplasmic reticulum [GO:0005791]; smooth endoplasmic reticulum [GO:0005790]; T-tubule [GO:0030315]; voltage-gated potassium channel complex [GO:0008076]
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KCNJ2
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Kaplan plot for KCNJ2 in
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*NOTE: the Kaplan plots were collected from OncoLnc