Entrez Summary: Voltage-gated sodium channels are transmembrane glycoprotein complexes composed of a large alpha subunit with 24 transmembrane domains and one or more regulatory beta subunits. They are responsible for the generation and propagation of action potentials in neurons and muscle. This gene encodes one member of the sodium channel alpha subunit gene family, and is highly expressed in nociceptive neurons of dorsal root ganglia and trigeminal ganglia. It mediates brain-derived neurotrophic factor-evoked membrane depolarization and is a major effector of peripheral inflammatory pain hypersensitivity. Mutations in this gene have been associated with hereditary sensory and autonomic neuropathy type VII and familial episodic pain syndrome-3. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Mar 2017].
UniProt Summary: This protein 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 sodium ions may pass in accordance with their electrochemical gradient. It is a tetrodotoxin-resistant sodium channel isoform. Also involved, with the contribution of the receptor tyrosine kinase NTRK2, in rapid BDNF-evoked neuronal depolarization. {ECO:0000269|PubMed:10580103, ECO:0000269|PubMed:12384689}.
Pfam DomainsGO Terms
Pfam Domains
Ion trans
Na trans assoc
GO Terms
voltage-gated sodium channel complex
voltage-gated sodium channel activity
neuronal action potential
membrane depolarization during action potential
regulation of sensory perception of pain
regulation of sensory perception
voltage-gated ion channel activity
membrane depolarization
transmission of nerve impulse
sodium ion transmembrane transport
action potential
multicellular organismal signaling
regulation of nervous system process
sodium ion transport
axon
monovalent inorganic cation transport
regulation of membrane potential
regulation of ion transmembrane transport
inorganic cation transmembrane transport
regulation of transmembrane transport
regulation of system process
cation transmembrane transport
metal ion transport
inorganic ion transmembrane transport
regulation of ion transport
cation transport
ion transmembrane transport
response to drug
transmembrane transport
ion transport
nervous system process
regulation of transport
system process
CRISPR Data
Compound HitMost Correlated Genes in ChemogenomicsTissues where Essential in the Avana Dataset (DepMap 20Q1)