Summary

Name KCNJ1
Full Name ATP-sensitive inward rectifier potassium channel 1
Synonyms ATP-regulated potassium channel ROM-K, Inward rectifier K(+) channel Kir1.1, Potassium channel, inwardly rectifying subfamily J member 1 | ROMK1
Primary ID P48048
Links - -
Type protein
Relations 6
Function In the kidney, probably plays a major role in potassium homeostasis. 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. This channel is activated by internal ATP and can be blocked by external barium.

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Modifications Tables

Relations

Regulator Mechanism target score
+ up-regulates activity img/direct-activation.png phosphorylation KCNJ1 0.2
Publications: 2 Organism: In Vitro
+ down-regulates activity img/direct_inhibition.png phosphorylation KCNJ1 0.2
Publications: 1 Organism: In Vitro
+ down-regulates img/direct_inhibition.png phosphorylation KCNJ1 0.318
Publications: 2 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png KCNJ1 0.311
Publications: 1 Organism: Homo Sapiens