SCNN1D Products

Description

SCNN1D is a subunit of the epithelial sodium channel (ENaC). ENaC has high sodium selectivity, low conductance, and amiloride sensitivity. The epithelial Na(+) channel (ENaC) regulates Na(+) homeostasis in cells and across epithelia; in the kidney, lung and colon it plays an essential role in trans-epithelial sodium and fluid balance. ENaC also mediates aldosterone-dependent sodium re-uptake in the distal nephron of the kidney, thus regulating blood pressure. Four homologous ENaC subunits (alpha, beta, gamma, and delta) have been isolated in mammals. Combination of alpha-, beta-, and gamma-subunits or delta-, beta-, and gamma-subunits forms fully functional channels. A delta subunit can replace the alpha subunit. However, the pharmacology, sensitivity to amiloride, conductance, and ionic selectivity of the delta/beta-gamma channel are different from those of the alpha/beta-gamma channel. 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. Controls the reabsorption of sodium in kidney, colon, lung and sweat glands. Also plays a role in taste perception. SUBUNIT: Heterotetramer of two alpha, one beta and one gamma subunit. A delta subunit can replace the alpha subunit. SUBCELLULAR LOCATION: Membrane; Multi-pass membrane protein.

Bioinformatics

Entrez	6339 Human
Uniprot	P51172 Human
Product By Gene ID	6339
Alternate Names	Delta-ENaC Delta-NaCH DNACH ENaCd ENaCD MGC149710 MGC149711 SCNED sodium channel, nonvoltage-gated 1, delta voltage-gated, type I, delta polypeptide