General Information of the Protein
| Protein ID |
PT03912
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| Protein Name |
Potassium voltage-gated channel subfamily KQT member 2
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| Secondarily Protein Name |
KQT-like 2
Neuroblastoma-specific potassium channel subunit alpha KvLQT2
Voltage-gated potassium channel subunit Kv7.2
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| Gene Name |
KCNQ2
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| Sequence |
MVQKSRNGGVYPGPSGEKKLKVGFVGLDPGAPDSTRDGALLIAGSEAPKRGSILSKPRAGGAGAGKPPKRNAFYRKLQNFLYNVLERPRGWAFIYHAYVFLLVFSCLVLSVFSTIKEYEKSSEGALYILEIVTIVVFGVEYFVRIWAAGCCCRYRGWRGRLKFARKPFCVIDIMVLIASIAVLAAGSQGNVFATSALRSLRFLQILRMIRMDRRGGTWKLLGSVVYAHSKELVTAWYIGFLCLILASFLVYLAEKGENDHFDTYADALWWGLITLTTIGYGDKYPQTWNGRLLAATFTLIGVSFFALPAGILGSGFALKVQEQHRQKHFEKRRNPAAGLIQSAWRFYATNLSRTDLHSTWQYYERTVTVPMYSSQTQTYGASRLIPPLNQLELLRNLKSKSGLAFRKDPPPEPSPSKGSPCRGPLCGCCPGRSSQKVSLKDRVFSSPRGVAAKGKGSPQAQTVRRSPSADQSLEDSPSKVPKSWSFGDRSRARQAFRIKGAASRQNSEEASLPGEDIVDDKSCPCEFVTEDLTPGLKVSIRAVCVMRFLVSKRKFKESLRPYDVMDVIEQYSAGHLDMLSRIKSLQSRVDQIVGRGPAITDKDRTKGPAEAELPEDPSMMGRLGKVEKQVLSMEKKLDFLVNIYMQRMGIPPTETEAYFGAKEPEPAPPYHSPEDSREHVDRHGCIVKIVRSSSSTGQKNFSAPPAAPPVQCPPSTSWQPQSHPRQGHGTSPVGDHGSLVRIPPPPAHERSLSAYGGGNRASMEFLRQEDTPGCRPPEGNLRDSDTSISIPSVDHEELERSFSGFSISQSKENLDALNSCYAAVAPCAKVRPYIAEGESDTDSDLCTPCGPPPRSATGEGPFGDVGWAGPRK
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| Organism |
Homo sapiens, Human
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| Protein Classification |
Ion channel
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Voltage-gated ion channel
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Potassium channels
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Voltage-gated potassium channel
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| 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). KCNQ2-KCNQ3 channel is selectively permeable to other cations besides potassium, in decreasing order of affinity K(+) > Rb(+) > Cs(+) > Na(+). Associates with Na(+)-coupled myo-inositol symporter SLC5A3 forming a coregulatory complex that alters ion selectivity, increasing Na(+) and Cs(+) permeation relative to K(+) permeation.
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| Uniprot ID |
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| Subcellular Location |
Cell membrane
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Map of Molecular Bioactivity Related to the Protein
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Map of Molecular Bioactivity Related to the Protein Protein Cell Line Compound Bioactivity Value: <= 0.1 μM > 0.1 μM and <= 10 μM > 10 μM Imprecise Activity |
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Table of Molecular Bioactivities Related to the Protein
Cell Line ID: CL000011 , CHO
Cell Line ID: CL000006 , HEK293
Biochemical Assays
| Compound ID | Compound Name | Compound Formula | |
| CP0002667 |
ethyl N-[2-amino-4-[(4-fluorophenyl)methylamino]phenyl]carbamate
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C16H18FN3O2
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1 |
| 1 | EC50 = 4210 nM | ||
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Clinical Information about the Protein
Similar Protein(s) and Bioactivity Statistics
90% Identity
| Protein ID | Protein Name | Protein Organism | |
| PT03090 | Potassium voltage-gated channel subfamily KQT member 2 | Rattus norvegicus, Rat | |
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50% Identity
| Protein ID | Protein Name | Protein Organism | |
| PT06112 | Potassium voltage-gated channel subfamily KQT member 2 | Mus musculus, Mouse | |
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