KCNMB3 Gene Summary [Human]

MaxiK channels are large conductance, voltage and calcium-sensitive potassium channels which are fundamental to the control of smooth muscle tone and neuronal excitability. MaxiK channels can be formed by 2 subunits: the pore-forming alpha subunit and the modulatory beta subunit. The protein encoded by this gene is an auxiliary beta subunit which may partially inactivate or slightly decrease the activation time of MaxiK alpha subunit currents. Alternative splicing results in multiple transcript variants. A related pseudogene has been identified on chromosome 22. [provided by RefSeq, Jul 2009]

Details

Type
Protein Coding
Official Symbol
KCNMB3
Official Name
potassium calcium-activated channel subfamily M regulatory beta subunit 3 [Source:HGNC Symbol;Acc:HGNC:6287]
Ensembl ID
ENSG00000171121
Bio databases IDs NCBI: 27094 Ensembl: ENSG00000171121
Aliases potassium calcium-activated channel subfamily M regulatory beta subunit 3, BK channel beta subunit 3, MaxiK channel beta-subunit 3, big potassium channel beta subunit 3
Synonyms BKBETA3, EG435726, Gm5707, HBETA3, KCNMB2, KCNMBL, K(VCA)BETA-3, K(VCA)β-3, potassium calcium-activated channel subfamily M regulatory beta subunit 3, potassium calcium-activated channel subfamily M regulatory β subunit 3, potassium large conductance calcium-activated channel, subfamily M, beta member 3, potassium large conductance calcium-activated channel, subfamily M, β member 3, SLO-BETA-3, SLO-β-3
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 KCNMB3 often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
  • Calcium-activated potassium channel, beta subunit
  • calcium-activated potassium channel
  • potassium channel regulator
  • ion channel

Pathways

Biological processes and signaling networks where the KCNMB3 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.
disease
  • atrial fibrillation
  • atrial flutter
regulated by
  • tedisamil
regulates
role in cell
  • action potential

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
  • cellular membrane

Gene Ontology Annotations

Describes the biological processes, cellular components, and molecular functions associated with the human KCNMB3 gene, providing context for its role in the cell.

Biological Process

Functions and activities the gene product is involved in
  • potassium ion transport
  • detection of calcium ion
  • potassium ion transmembrane transport
  • regulation of action potential
  • regulation of action potential in neuron

Cellular Component

Where in the cell the gene product is active
  • voltage-gated potassium channel complex
  • plasma membrane

Molecular Function

What the gene product does at the molecular level
  • calcium-activated potassium channel activity
  • potassium channel regulator 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.