KCNK3 Gene Summary [Human]

This gene encodes a member of the superfamily of potassium channel proteins that contain two pore-forming P domains. The encoded protein is an outwardly rectifying channel that is sensitive to changes in extracellular pH and is inhibited by extracellular acidification. Also referred to as an acid-sensitive potassium channel, it is activated by the anesthetics halothane and isoflurane. Although three transcripts are detected in northern blots, there is currently no sequence available to confirm transcript variants for this gene. [provided by RefSeq, Aug 2008]

Details

Type
Protein Coding
Official Symbol
KCNK3
Official Name
potassium two pore domain channel subfamily K member 3 [Source:HGNC Symbol;Acc:HGNC:6278]
Ensembl ID
ENSG00000171303
Bio databases IDs NCBI: 3777 Ensembl: ENSG00000171303
Aliases potassium two pore domain channel subfamily K member 3, TWIK-related acid-sensitive K+ 1
Synonyms cTBAK-1, K2p3.1, OAT1, potassium channel, subfamily K, member 3, potassium two pore domain channel subfamily K member 3, PPH4, rTASK, TASK, TASK-1, TBAK1
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 KCNK3 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
  • open rectifier potassium channel
  • outward rectifier potassium channel
  • sodium channel
  • channel/pore class transporter
  • protein binding
  • ion channel
  • protein heterodimerization

Top Findings

The most significant associations for this gene, including commonly observed domains, pathway involvement, and functional highlights based on current data.
binds
disease
  • major depression
  • stroke
  • chronic obstructive pulmonary disease
  • coronary disease
  • disorder of coronary artery
  • diabetes mellitus
  • COVID-19
  • heart disease
  • metabolic syndrome X
  • heart failure
regulated by
regulates
  • aldosterone
  • KCNK3
  • K+
  • renin
  • catecholamine
  • ion
role in cell
  • cell death
  • growth
  • excitation
  • action potential
  • response by
  • depolarization

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
  • Cytoplasm
  • membrane surface
  • cellular membrane

Gene Ontology Annotations

Describes the biological processes, cellular components, and molecular functions associated with the human KCNK3 gene, providing context for its role in the cell.

Biological Process

Functions and activities the gene product is involved in
  • potassium ion transport
  • potassium ion transmembrane transport
  • cellular response to zinc ion
  • cochlea development
  • regulation of resting membrane potential
  • ion transmembrane transport
  • reduction of cytosolic calcium ion concentration
  • synaptic transmission
  • response to xenobiotic stimulus
  • cellular response to hypoxia
  • stabilization of membrane potential

Cellular Component

Where in the cell the gene product is active
  • synapse
  • plasma membrane

Molecular Function

What the gene product does at the molecular level
  • ion channel activity
  • outward rectifier potassium channel activity
  • open rectifier potassium channel activity
  • potassium channel activity
  • S100 protein binding
  • potassium ion leak channel activity

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.