Loading the page.
Proteins/UNIPROT:P35499
Pore-forming subunit of Nav1.4, a voltage-gated sodium (Nav) channel that directly mediates the depolarizing phase of action potentials in excitable membranes. Navs, also called VGSCs (voltage-gated sodium channels) or VDSCs (voltage-dependent sodium channels), operate by switching between closed and open conformations depending on the voltage difference across the membrane. In the open conformation they allow Na(+) ions to selectively pass through the pore, along their electrochemical gradient. The influx of Na+ ions provokes membrane depolarization, initiating the propagation of electrical signals throughout cells and tissues. Highly expressed in skeletal muscles, Nav1.4 generates the action potential crucial for muscle contraction..
Function from UniProtKB (P35499), read 2026-09-23. CC BY 4.0.
Curated compounds routed: 1 · transported by
1 compound
1 compound.
0 reported routes1 assembled route
12 rows
21 statements
21 statements · 6 reference databases · Subject: SCN4A · Sources: gene ontology, Hetionet, Human-GEM, Reactome, Rhea, WikiPathways
2 reactions
Transported by SCN1A or SCN2A or SCN3A or SCN4A or SCN5A or SCN7A or SCN8A or SCN9A or SCN10A or SCN11A or HCN1 or HCN4 and 5 more alternatives
Reaction pageReversibleBalancedextracellular space, cytosol
Human-GEM MAR01527CC BY 4.0Reference data
4 names
Resolves to: SCN4A
Transported by ANO9 or HTR3E or TMEM150C or KCNK1 or KCNK3 or GRIN2D or GRID2 or KCNQ3 or KCNQ2 or GRIN3B or HCN1 or TRPA1 and 98 more alternatives
Reaction pageRight to leftBalanced
Rhea RHEA:34963CC BY 4.0Reference data