SCN2A gene

sodium voltage-gated channel alpha subunit 2

The information on this page was automatically extracted from online scientific databases.

From NCBI Gene:

Voltage-gated sodium channels are transmembrane glycoprotein complexes composed of a large alpha subunit with four repeat domains, each of which is composed of six membrane-spanning segments, and one or more regulatory beta subunits. Voltage-gated sodium channels function in the generation and propagation of action potentials in neurons and muscle. This gene encodes one member of the sodium channel alpha subunit gene family. Allelic variants of this gene are associated with seizure disorders and autism spectrum disorder. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Nov 2016]

From UniProt:

Mediates 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 Na(+) ions may pass in accordance with their electrochemical gradient.

From NCBI Gene:

  • Benign familial neonatal-infantile seizures
  • Early infantile epileptic encephalopathy 11

From UniProt:

Seizures, benign familial infantile, 3 (BFIS3): A form of benign familial infantile epilepsy, a neurologic disorder characterized by afebrile seizures occurring in clusters during the first year of life, without neurologic sequelae. BFIS3 inheritance is autosomal dominant. [MIM:607745]

Epileptic encephalopathy, early infantile, 11 (EIEE11): An autosomal dominant seizure disorder characterized by neonatal or infantile onset of refractory seizures with resultant delayed neurologic development and persistent neurologic abnormalities. Patients may progress to West syndrome, which is characterized by tonic spasms with clustering, arrest of psychomotor development, and hypsarrhythmia on EEG. [MIM:613721]

Cytogenetic Location: 2q24.3, which is the long (q) arm of chromosome 2 at position 24.3

Molecular Location: base pairs 165,208,056 to 165,392,310 on chromosome 2 (Homo sapiens Annotation Release 108, GRCh38.p7) (NCBI)

Cytogenetic Location: 2q24.3, which is the long (q) arm of chromosome 2 at position 24.3
  • BFIC3
  • BFIS3
  • BFNIS
  • EIEE11
  • HBA
  • HBSCI
  • HBSCII
  • Na(v)1.2
  • NAC2
  • Nav1.2
  • SCN2A1
  • SCN2A2