KCNQ2 Gene Summary [Human]

The M channel is a slowly activating and deactivating potassium channel that plays a critical role in the regulation of neuronal excitability. The M channel is formed by the association of the protein encoded by this gene and a related protein encoded by the KCNQ3 gene, both integral membrane proteins. M channel currents are inhibited by M1 muscarinic acetylcholine receptors and activated by retigabine, a novel anti-convulsant drug. Defects in this gene are a cause of benign familial neonatal convulsions type 1 (BFNC), also known as epilepsy, benign neonatal type 1 (EBN1). At least five transcript variants encoding five different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

Details

Type
Protein Coding
Official Symbol
KCNQ2
Official Name
potassium voltage-gated channel subfamily Q member 2 [Source:HGNC Symbol;Acc:HGNC:6296]
Ensembl ID
ENSG00000075043
Bio databases IDs NCBI: 3785 Ensembl: ENSG00000075043
Aliases potassium voltage-gated channel subfamily Q member 2
Synonyms BFNC, DEE7, EBN, EBN1, ENB1, HNSPC, KCNA11, KQT2, KV7.2, Nmf134, potassium voltage-gated channel subfamily Q member 2, potassium voltage-gated channel, subfamily Q, member 2
Species
Human, Homo sapiens
OrthologiesMouseRat

Protein Domains

A protein domain is a distinct structural or functional region within a protein that can evolve, function, and exist independently of the rest of the protein chain. These domains in human KCNQ2 often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
  • potassium channel
  • Ion transport protein
  • calmodulin binding
  • alpha helix
  • calmodulin binding domain
  • protein binding
  • ion channel
  • KCNQ voltage-gated potassium channel
  • voltage-gated potassium channel
  • Ankyrin-G binding motif of KCNQ2-3
  • ankyrin binding
  • voltage-gated ion channel
  • cation channel
  • Unstructured region on Potassium channel subunit alpha KvLQT2

Pathways

Biological processes and signaling networks where the KCNQ2 gene in human plays a role, providing insight into its function and relevance in health or disease.

Top Findings

The most significant associations for this gene, including commonly observed domains, pathway involvement, and functional highlights based on current data.
binds
disease
  • benign familial neonatal seizures 1
  • hereditary disorder
  • early infantile epileptic encephalopathy type 7
  • Ohtahara syndrome
  • kainic acid-induced epileptic seizure
  • mental retardation
  • repetitive behavior
  • KCNQ2-related disorder
  • Huntington disease
  • COVID-19
regulated by
role in cell
  • expression in
  • apoptosis
  • cell death
  • differentiation
  • transmembrane potential
  • action potential
  • transmission
  • activity
  • response by
  • exocytosis by

Subcellular Expression

Locations within the cell where the protein is known or predicted to be active, providing insight into its function and cellular context.
  • Plasma Membrane
  • membrane fraction
  • axon component
  • cell surface
  • cellular membrane
  • Golgi Apparatus
  • Endoplasmic Reticulum
  • nodes of Ranvier
  • synaptic vesicles
  • growth cone
  • axon initial segments
  • gap junctions
  • perikaryon
  • dendrites
  • axon terminals
  • mossy fibers
  • apical processes

Gene Ontology Annotations

Describes the biological processes, cellular components, and molecular functions associated with the human KCNQ2 gene, providing context for its role in the cell.

Biological Process

Functions and activities the gene product is involved in
  • potassium ion transmembrane transport
  • nervous system development
  • synaptic transmission
  • regulation of action potential

Cellular Component

Where in the cell the gene product is active
  • initial segment
  • voltage-gated potassium channel complex
  • membrane
  • node of Ranvier
  • synapse
  • plasma membrane

Molecular Function

What the gene product does at the molecular level
  • voltage-gated potassium channel activity
  • calmodulin binding
  • protein binding
  • ankyrin binding

Gene-Specific Assays for Results You Can Trust

Streamline your workflow with assays designed for this gene. Our targeted dPCR and qPCR assays help you generate meaningful data – efficiently and accurately.