FUNCTION: 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 chann...
FUNCTION: 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. KCNJ14 gives rise to low-conductance channels with a low affinity to the channel blockers Barium and Cesium (By similarity). {ECO:0000250}.
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GO - Biological processes (BP):
potassium ion import across plasma membrane [GO:1990573]; regulation of ion transmembrane transport [GO:0034765]...
potassium ion import across plasma membrane [GO:1990573]; regulation of ion transmembrane transport [GO:0034765]
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GO - Molecular function (MF):
inward rectifier potassium channel activity [GO:0005242]...
inward rectifier potassium channel activity [GO:0005242]
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GO - Cellular component (CC):
dendrite [GO:0030425]; neuronal cell body [GO:0043025]; plasma membrane [GO:0005886]; voltage-gated potassium channel complex [GO:0008076]...
dendrite [GO:0030425]; neuronal cell body [GO:0043025]; plasma membrane [GO:0005886]; voltage-gated potassium channel complex [GO:0008076]
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