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SCN11A

Chr 3p22.2

sodium voltage-gated channel alpha subunit 11

Aliases:
Nav1.9, NaN, SNS-2
MANE:
ENST00000302328.9

Annotations refreshed 10 hours ago.

Predicted protein structure

Clinical relevance (Genomics England PanelApp)

Diagnostic Grade (Green)

  • DDG2P

    MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
  • Familial dysautonomia

    MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
  • Gastrointestinal neuromuscular disorders

    MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
  • Hereditary neuropathy

    MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
  • Hereditary neuropathy or pain disorder

    MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
  • Pain syndromes

    MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
  • Fetal anomalies

    MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
  • Intellectual disability

    MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown

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Disease associations (Open Targets)

  • familial episodic pain syndrome with predominantly lower limb involvement

    0.80
  • hereditary sensory and autonomic neuropathy type 7

    0.78
  • familial episodic pain syndrome

    0.68
  • major depressive disorder

    0.62
  • epilepsy

    0.61
  • Pain

    0.61
  • bipolar disorder

    0.61
  • Seizure

    0.60
  • Lennox-Gastaut syndrome

    0.60
  • Pruritus

    0.59

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

Protein function (UniProt)

Sodium channel protein type 11 subunit alpha

Sodium channel mediating the voltage-dependent sodium ion permeability of excitable membranes. Assuming opened or closed conformations in response to the voltage difference across the membrane, the protein forms a sodium-selective channel through which sodium ions may pass in accordance with their electrochemical gradient (PubMed:10580103, PubMed:12384689, PubMed:24036948, PubMed:24776970, PubMed:25791876, PubMed:26645915). Involved in membrane depolarization during action potential in nociceptors which function as key relay stations for the electrical transmission of pain signals from the periphery to the central nervous system (PubMed:24036948, PubMed:24776970, PubMed:25791876, PubMed:26645915). Also involved in rapid BDNF-evoked neuronal depolarization (PubMed:12384689)

Curated MONDO disease pages that list SCN11A among their top associated genes.

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.