Names & Taxonomy
- Uniprot ID:
- O43526
- Entry Name:
- KCNQ2_HUMAN
- Status:
- reviewed
- Protein Names:
- Potassium voltage-gated channel subfamily KQT member 2 (KQT-like 2) (Neuroblastoma-specific potassium channel subunit alpha KvLQT2) (Voltage-gated potassium channel subunit Kv7.2)
- Gene Names:
- KCNQ2
- Gene Names Primary:
- KCNQ2
- Organism:
- Homo sapiens (Human)
Structure
- Length:
- 872
- Sequence:
- MVQKSRNGGVYPGPSGEKKLKVGFVGLDPGAPDSTRDGALLIAGSEAPKRGSILSKPRAGGAGAGKPPKRNAFYRKLQNFLYNVLERPRGWAFIYHAYVFLLVFSCLVLSVFSTIKEYEKSSEGALYILEIVTIVVFGVEYFVRIWAAGCCCRYRGWRGRLKFARKPFCVIDIMVLIASIAVLAAGSQGNVFATSALRSLRFLQILRMIRMDRRGGTWKLLGSVVYAHSKELVTAWYIGFLCLILASFLVYLAEKGENDHFDTYADALWWGLITLTTIGYGDKYPQTWNGRLLAATFTLIGVSFFALPAGILGSGFALKVQEQHRQKHFEKRRNPAAGLIQSAWRFYATNLSRTDLHSTWQYYERTVTVPMYSSQTQTYGASRLIPPLNQLELLRNLKSKSGLAFRKDPPPEPSPSKGSPCRGPLCGCCPGRSSQKVSLKDRVFSSPRGVAAKGKGSPQAQTVRRSPSADQSLEDSPSKVPKSWSFGDRSRARQAFRIKGAASRQNSEEASLPGEDIVDDKSCPCEFVTEDLTPGLKVSIRAVCVMRFLVSKRKFKESLRPYDVMDVIEQYSAGHLDMLSRIKSLQSRVDQIVGRGPAITDKDRTKGPAEAELPEDPSMMGRLGKVEKQVLSMEKKLDFLVNIYMQRMGIPPTETEAYFGAKEPEPAPPYHSPEDSREHVDRHGCIVKIVRSSSSTGQKNFSAPPAAPPVQCPPSTSWQPQSHPRQGHGTSPVGDHGSLVRIPPPPAHERSLSAYGGGNRASMEFLRQEDTPGCRPPEGNLRDSDTSISIPSVDHEELERSFSGFSISQSKENLDALNSCYAAVAPCAKVRPYIAEGESDTDSDLCTPCGPPPRSATGEGPFGDVGWAGPRK
- Proteomes:
- UP000005640
Subcellular location
- Subcellular Location:
- Membrane; Multi-pass membrane protein.
- Intramembrane:
- INTRAMEM 265 285 Pore-forming; Name=Segment H5.
Function
- Function:
- Probably important in the regulation of neuronal excitability. 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. KCNQ2/KCNQ3 current is blocked by linopirdine and XE991, and activated by the anticonvulsant retigabine. Muscarinic agonist oxotremorine-M strongly suppress KCNQ2/KCNQ3 current in cells in which cloned KCNQ2/KCNQ3 channels were coexpressed with M1 muscarinic receptors.
- Cross Reference Drug Bank:
- DB00321 DB00586 DB04953 DB00939
- Gene Ontology Go:
- axon initial segment
node of Ranvier
plasma membrane
voltage-gated potassium channel complex
ankyrin binding
delayed rectifier potassium channel activity
potassium channel activity
voltage-gated potassium channel activity
axon guidance
nervous system development
potassium ion transport
synaptic transmission - Gene Ontology Biological Process:
- axon guidance
nervous system development
potassium ion transport
synaptic transmission - Gene Ontology Molecular Function:
- ankyrin binding
delayed rectifier potassium channel activity
potassium channel activity
voltage-gated potassium channel activity - Gene Ontology Cellular Component:
- axon initial segment
node of Ranvier
plasma membrane
voltage-gated potassium channel complex - Keywords:
- Alternative splicing
Complete proteome
Disease mutation
Epilepsy
Ion channel
Ion transport
Membrane
Mental retardation
Phosphoprotein
Polymorphism
Potassium
Potassium channel
Potassium transport
Reference proteome
Transmembrane
Transmembrane helix
Transport
Voltage-gated channel