FUNCTION: Associates with KCNQ3 to form a potassium channel with essentially identical properties to the channel underlying the native M-current, a slowly activating and deactivating potassium conductance which plays a critical role in determining the subthreshold electrical excitability of neurons ...
FUNCTION: Associates with KCNQ3 to form a potassium channel with essentially identical properties to the channel underlying the native M-current, a slowly activating and deactivating potassium conductance which plays a critical role in determining the subthreshold electrical excitability of neurons as well as the responsiveness to synaptic inputs. Therefore, it is important in the regulation of neuronal excitability. KCNQ2/KCNQ3 current is blocked by linopirdine and XE991, and activated by the anticonvulsant retigabine (PubMed:9836639, PubMed:11572947, PubMed:14534157, PubMed:12742592, PubMed:17872363). As the native M-channel, the potassium channel composed of KCNQ2 and KCNQ3 is also suppressed by activation of the muscarinic acetylcholine receptor CHRM1 (PubMed:10684873). {ECO:0000269|PubMed:10684873, ECO:0000269|PubMed:11572947, ECO:0000269|PubMed:12742592, ECO:0000269|PubMed:14534157, ECO:0000269|PubMed:17872363, ECO:0000269|PubMed:25740509, ECO:0000269|PubMed:9836639}.
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GO - Biological processes (BP):
chemical synaptic transmission [GO:0007268]; nervous system development [GO:0007399]; potassium ion transmembrane transport [GO:0071805]; regulation of ion transmembrane transport [GO:0034765]...
chemical synaptic transmission [GO:0007268]; nervous system development [GO:0007399]; potassium ion transmembrane transport [GO:0071805]; regulation of ion transmembrane transport [GO:0034765]
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GO - Molecular function (MF):
ankyrin binding [GO:0030506]; calmodulin binding [GO:0005516]; delayed rectifier potassium channel activity [GO:0005251]; voltage-gated potassium channel activity [GO:0005249]...
ankyrin binding [GO:0030506]; calmodulin binding [GO:0005516]; delayed rectifier potassium channel activity [GO:0005251]; voltage-gated potassium channel activity [GO:0005249]
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GO - Cellular component (CC):
axon initial segment [GO:0043194]; integral component of membrane [GO:0016021]; integral component of plasma membrane [GO:0005887]; node of Ranvier [GO:0033268]; plasma membrane [GO:0005886]; synapse [GO:0045202]; voltage-gated potassium channel complex [GO:0008076]...
axon initial segment [GO:0043194]; integral component of membrane [GO:0016021]; integral component of plasma membrane [GO:0005887]; node of Ranvier [GO:0033268]; plasma membrane [GO:0005886]; synapse [GO:0045202]; voltage-gated potassium channel complex [GO:0008076]
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