| Post Translational Modifications | Ubiquitinated.this targets individual subunits for endocytosis and proteasome-mediated degradation. ENaC cleavage by furin, and subsequently by prostasin (PRSS8), leads to a stepwise increase in the open probability of the channel as a result of release of the alpha and gamma subunit inhibitory tracts, respectively. Interaction of ENaC subunit SCNN1B with BPIFA1 protects ENaC against proteolytic activation. N-glycosylated. |
| Function | Sodium permeable non-voltage-sensitive ion channel inhibited by the diuretic amiloride. Mediates the electrodiffusion of the luminal sodium (and water, which follows osmotically) through the apical membrane of epithelial cells. Plays an essential role in electrolyte and blood pressure homeostasis, but also in airway surface liquid homeostasis, which is important for proper clearance of mucus. Controls the reabsorption of sodium in kidney, colon, lung and eccrine sweat glands. Also plays a role in taste perception. |
| Protein Name | Amiloride-Sensitive Sodium Channel Subunit AlphaAlpha-NachEpithelial Na(+ Channel Subunit AlphaAlpha-EnacNonvoltage-Gated Sodium Channel 1 Subunit AlphaScnea |
| Database Links | Reactome: R-RNO-2672351Reactome: -RNO-9730628 |
| Cellular Localisation | Apical Cell MembraneMulti-Pass Membrane ProteinCell ProjectionCiliumCytoplasmic GranuleCytoplasmCytoplasmic VesicleSecretory VesicleAcrosomeFlagellumIn Multi-Ciliated CellsLocated On CiliaIn Non-Ciliated Epithelial CellsRestricted To Apical SurfacesIn EpidermisLocated Nearly Uniformly In The Cytoplasm In A Granular DistributionIn Sebaceous GlandsObserved Only In The Cytoplasmic Space In Between The Lipid VesiclesIn Eccrine Sweat GlandsMainly Located At The Apical Surface Of The Cells Facing The LumenIn SkinIn Arrector Pili Muscle Cells And In AdipocytesLocated In The Cytoplasm And Colocalized With Actin FibersIn SpermatogoniaSpermatocytes And Round SpermatidsLocated In The CytoplasmPrior To SpermiationLocation Shifts From The Cytoplasm To The Spermatid TailIn SpermatozoaLocalizes At The Acrosome And The Central Region Of The Sperm Flagellum |
| Alternative Protein Names | Amiloride-Sensitive Sodium Channel Subunit Alpha proteinAlpha-Nach proteinEpithelial Na(+ Channel Subunit Alpha proteinAlpha-Enac proteinNonvoltage-Gated Sodium Channel 1 Subunit Alpha proteinScnea proteinScnn1a proteinRenac protein |
Information sourced from Uniprot.org
