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CACNB4

Chr 2q23.3

calcium voltage-gated channel auxiliary subunit beta 4

Aliases:
EJM4
MANE:
ENST00000539935.7

Annotations refreshed 1 month ago.

Predicted protein structure

Clinical relevance (Genomics England PanelApp)

Diagnostic Grade (Green)

  • Brain channelopathy

    MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
  • Intellectual disability

    BOTH monoallelic and biallelic, autosomal or pseudoautosomal
  • Paroxysmal central nervous system disorders

    MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
  • Adult onset dystonia, chorea or related movement disorder

    MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
  • Adult onset neurodegenerative disorder

    MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
  • Ataxia and cerebellar anomalies - narrow panel

    MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
  • Childhood onset dystonia, chorea or related movement disorder

    BOTH monoallelic and biallelic, autosomal or pseudoautosomal
  • DDG2P

    MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown

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Disease associations (Open Targets)

  • epilepsy

    0.64
  • episodic ataxia type 5

    0.60
  • neuropathic pain

    0.60
  • fibromyalgia

    0.60
  • Seizure

    0.60
  • restless legs syndrome

    0.59
  • postherpetic neuralgia

    0.57
  • anxiety disorder

    0.57
  • neuralgia

    0.56
  • Focal-onset seizure

    0.52

Score is the Open Targets composite evidence score (0-1). Higher = stronger gene-disease association.

Protein function (UniProt)

Voltage-dependent L-type calcium channel subunit beta-4

The beta subunit of voltage-dependent calcium channels contributes to the function of the calcium channel by increasing peak calcium current, shifting the voltage dependencies of activation and inactivation, modulating G protein inhibition and controlling the alpha-1 subunit membrane targeting

Data sources: HGNC (CC BY 4.0), AlphaFold (CC BY 4.0, Jumper et al. Nature 2021), Genomics England PanelApp (CC BY 4.0), ClinGen, Open Targets (CC0), UniProt.

Not for sole clinical decision-making. Always verify against primary sources.