Cacnb4 Gene Summary [Rat]

Enables protein kinase binding activity and voltage-gated calcium channel activity. Involved in several processes, including negative regulation of G1/S transition of mitotic cell cycle; positive regulation of protein localization to nucleolus; and positive regulation of voltage-gated calcium channel activity. Located in nuclear speck. Is active in presynapse. Human ortholog(s) of this gene implicated in dilated cardiomyopathy; episodic ataxia; episodic ataxia type 5; and generalized epilepsy. Orthologous to human CACNB4 (calcium voltage-gated channel auxiliary subunit beta 4). [provided by Alliance of Genome Resources, Jul 2025]

Details

Type
Protein Coding
Official Symbol
Cacnb4
Official Name
calcium voltage-gated channel auxiliary subunit beta 4 [Source:RGD Symbol;Acc:68385]
Ensembl ID
ENSRNOG00000007666
Bio databases IDs NCBI: 58942 Ensembl: ENSRNOG00000007666
Aliases calcium voltage-gated channel auxiliary subunit beta 4
Synonyms 3110038O15RIK, CAB4, CACNLB4, Calcium Channel beta4, calcium channel, voltage-dependent, beta 4 subunit, calcium channel, voltage-dependent, β 4 subunit, calcium voltage-gated channel auxiliary subunit beta 4, calcium voltage-gated channel auxiliary subunit β 4, Cchb4, EA5, EIG9, EJM, EJM4, EJM6, lh
Species
Rat, Rattus norvegicus
OrthologiesHumanMouse

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 rat Cacnb4 often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
  • guanylate kinase
  • voltage-gated calcium channel
  • protein kinase binding
  • NK
  • high voltage-gated calcium channel
  • Voltage gated calcium channel subunit beta domain 4Aa N terminal
  • calcium channel beta4 alpha1 binding domain
  • protein binding
  • ion channel
  • Src Homology 3 domain superfamily

Top Findings

The most significant associations for this gene, including commonly observed domains, pathway involvement, and functional highlights based on current data.
binds
  • BSN
  • CACNA1E
  • CACNA1
  • EED
  • Adaptor protein 2
  • Adaptor Protein 2
  • mibefradil
  • nimodipine
  • verapamil
  • THRA
disease
  • cardiomyopathy
  • COVID-19
  • cardiovascular disorder
  • hypertension
  • atrial fibrillation
  • bleeding
  • paroxysmal supraventricular tachycardia
  • cerebral infarction
  • chronic stable angina
  • mania
regulated by
regulates
role in cell
  • proliferation
  • transmembrane potential
  • development
  • exocytosis
  • plasticity

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
  • glutaminergic synapse
  • Cytoplasm
  • presynaptic regions
  • vesicles
  • cytosol
  • cytoplasmic face of plasma membrane
  • nuclear speckles
  • synapse
  • microsomal membrane

Gene Ontology Annotations

Describes the biological processes, cellular components, and molecular functions associated with the rat Cacnb4 gene, providing context for its role in the cell.

Biological Process

Functions and activities the gene product is involved in
  • detection of light stimulus involved in visual perception
  • negative regulation of cell proliferation
  • muscle cell development
  • gamma-aminobutyric acid secretion
  • synaptic transmission
  • spleen development
  • gamma-aminobutyric acid signaling pathway
  • thymus development
  • neuromuscular junction development
  • adult walking behavior
  • cAMP metabolic process
  • Peyer's patch development
  • calcium ion transmembrane transport
  • regulation of synaptic vesicle exocytosis
  • negative regulation of G1/S transition of mitotic cell cycle
  • neuronal action potential propagation
  • T cell receptor signaling pathway
  • synaptic transmission, glutamatergic

Cellular Component

Where in the cell the gene product is active
  • nuclear speck
  • voltage-gated calcium channel complex
  • cytosol
  • internal side of plasma membrane

Molecular Function

What the gene product does at the molecular level
  • protein kinase binding
  • protein binding
  • high voltage-gated calcium channel activity
  • voltage-gated calcium channel activity

Gene-Specific Assays for Results You Can Trust

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