sodium pump

Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.

so′dium pump`

an energy-consuming mechanism in cell membranes that transports sodium ions across the membrane, in exchange for potassium ions or other substances.
Mentioned in ?
References in periodicals archive ?
To see how the mechanism of hearing resembles a battery, you need to know that the auditory system of the fruit fly contains a protein that functions as a sodium/potassium pump, often called the sodium pump for short, and is highly expressed in a specialized support cell called the scolopale cell.
The primary sodium circuit with two pumps and four IHX (Intermediate Heat Exchanger) is contained within the reactor assembly and the secondary sodium circuit consists of 2 identical loops each with a sodium pump and four Steam Generators (SG).
ATPase (NKA), also called a sodium pump or sodium-potassium exchange.
These steroids were thought to work primarily by binding and inhibiting a cell structure called the sodium pump, which indirectly increases the amount of calcium inside the cell.
HIF is a natural, regulatory hormone found in humans which controls the sodium pump, a fundamental enzyme found in all cells.
Exposure to the secondhand smoke produced by as little as two cigarettes was found to almost completely stop the function of a cell's sodium pump within a few hours.
Cardiac glycosides regulate the activity of the sodium pump (Na,K-ATPase), and the a-subunit of Na,K-ATPase is a recognized functional receptor for these compounds (3-7).
Webster recently identified the bacterium's sodium pump as a protein pigment known as cytochrone-o.
When turned on, MR leads to the expression of a protein called epithelial sodium channel (ENaC) and an enzyme called the sodium pump.
The receptor for digoxin and other cardiac glycosides is the sarcolemmal sodium pump ([Na/.