FUNCTION: Ion channel that contributes to passive transmembrane potassium transport (PubMed:23169818). Reversibly converts between a voltage-insensitive potassium leak channel and a voltage-dependent outward rectifying potassium channel in a phosphorylation-dependent manner (PubMed:11319556). In ast...
FUNCTION: Ion channel that contributes to passive transmembrane potassium transport (PubMed:23169818). Reversibly converts between a voltage-insensitive potassium leak channel and a voltage-dependent outward rectifying potassium channel in a phosphorylation-dependent manner (PubMed:11319556). In astrocytes, forms mostly heterodimeric potassium channels with KCNK1, with only a minor proportion of functional channels containing homodimeric KCNK2. In astrocytes, the heterodimer formed by KCNK1 and KCNK2 is required for rapid glutamate release in response to activation of G-protein coupled receptors, such as F2R and CNR1 (By similarity). {ECO:0000250|UniProtKB:P97438, ECO:0000269|PubMed:10784345, ECO:0000269|PubMed:11319556, ECO:0000269|PubMed:23169818}.; FUNCTION: [Isoform 4]: Does not display channel activity but reduces the channel activity of isoform 1 and isoform 2 and reduces cell surface expression of isoform 2. {ECO:0000250}.
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GO - Biological processes (BP):
cardiac ventricle development [GO:0003231]; cellular response to hypoxia [GO:0071456]; cochlea development [GO:0090102]; G protein-coupled receptor signaling pathway [GO:0007186]; memory [GO:0007613]; negative regulation of cardiac muscle cell proliferation [GO:0060044]; negative regulation of DNA b...
cardiac ventricle development [GO:0003231]; cellular response to hypoxia [GO:0071456]; cochlea development [GO:0090102]; G protein-coupled receptor signaling pathway [GO:0007186]; memory [GO:0007613]; negative regulation of cardiac muscle cell proliferation [GO:0060044]; negative regulation of DNA biosynthetic process [GO:2000279]; positive regulation of cell death [GO:0010942]; positive regulation of cellular response to hypoxia [GO:1900039]; potassium ion transmembrane transport [GO:0071805]; response to axon injury [GO:0048678]; response to mechanical stimulus [GO:0009612]; stabilization of membrane potential [GO:0030322]
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GO - Molecular function (MF):
outward rectifier potassium channel activity [GO:0015271]; potassium channel inhibitor activity [GO:0019870]; potassium ion leak channel activity [GO:0022841]...
outward rectifier potassium channel activity [GO:0015271]; potassium channel inhibitor activity [GO:0019870]; potassium ion leak channel activity [GO:0022841]
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GO - Cellular component (CC):
apical plasma membrane [GO:0016324]; astrocyte projection [GO:0097449]; calyx of Held [GO:0044305]; cell surface [GO:0009986]; endoplasmic reticulum [GO:0005783]; endoplasmic reticulum membrane [GO:0005789]; integral component of plasma membrane [GO:0005887]; neuronal cell body [GO:0043025]; nucleus...
apical plasma membrane [GO:0016324]; astrocyte projection [GO:0097449]; calyx of Held [GO:0044305]; cell surface [GO:0009986]; endoplasmic reticulum [GO:0005783]; endoplasmic reticulum membrane [GO:0005789]; integral component of plasma membrane [GO:0005887]; neuronal cell body [GO:0043025]; nucleus [GO:0005634]; plasma membrane [GO:0005886]; voltage-gated potassium channel complex [GO:0008076]
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