Entrez Summary: This gene encodes one of the many voltage-gated sodium channel proteins. For proper functioning of neurons and muscles during action potentials, voltage-gated sodium channels direct sodium ion diffusion for membrane depolarization. This sodium channel protein has some atypical characteristics; the similarity between the human and mouse proteins is lower compared to other orthologous sodium channel pairs. Also, the S4 segments, which sense voltage changes, have fewer positive charged residues that in other sodium channels; domain 4 has fewer arginine and lysine residues compared to other sodium channel proteins. Several alternatively spliced transcript variants exist, but the full-length natures of all of them remain unknown. [provided by RefSeq, Dec 2011].
UniProt Summary: 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. {ECO:0000305}.
Pfam DomainsGO Terms
Pfam Domains
Ion trans
Na trans assoc
GO Terms
glial cell projection
voltage-gated sodium channel complex
voltage-gated sodium channel activity
neuronal action potential
membrane depolarization during action potential
sodium ion homeostasis
voltage-gated ion channel activity
membrane depolarization
transmission of nerve impulse
sodium ion transmembrane transport
action potential
multicellular organismal signaling
monovalent inorganic cation homeostasis
sodium ion transport
muscle contraction
axon
muscle system process
monovalent inorganic cation transport
regulation of membrane potential
regulation of ion transmembrane transport
inorganic cation transmembrane transport
regulation of transmembrane transport
cation transmembrane transport
metal ion homeostasis
metal ion transport
inorganic ion transmembrane transport
response to bacterium
regulation of ion transport
cation homeostasis
inorganic ion homeostasis
ion homeostasis
cation transport
ion transmembrane transport
chemical homeostasis
transmembrane transport
response to other organism
response to external biotic stimulus
response to biotic stimulus
ion transport
nervous system process
homeostatic process
regulation of transport
system process
CRISPR Data
Compound HitMost Correlated Genes in ChemogenomicsTissues where Essential in the Avana Dataset (DepMap 20Q1)