antiporter

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antiporter

[an·tē′pȯrd·ər]
(cell and molecular biology)
A channel protein that simultaneously or sequentially transports two different types of substrates across a cell membrane, one into the cell (for example sodium ion) and one out of the cell (for example calcium ion).
References in periodicals archive ?
antiport activity of the mutant cells in cyanobacteria Synechocystis sp.
antiport transporters on the tonoplast or in the plasmatic membrane (APSE; BLUMWALD, 2007).
Removing Ca from the cell by the Na-Ca sarcolemma antiport mechanism and through the action of the sarcolemma pump.
Sodium/proton antiport in brush-border-membrane vesicles isolated from rat small intestine and kidney.
Therefore, the antiport crosstalk between starch and cellulose biosyntheses [36, 37, 38] is mediated by Pi translocator and glucosyltransferase via the plus/plus strands sequence homology of the GDH-synthesized RNAs that regulate the abundance of their mRNAs.
This type of transport is called: (a) cotransport (b) antiport (c) symport (d) a and b (e) duoport Answer = d 3.
On the other hand, an increased rate of Na/Mg antiport in hemodialysis patients, which leads only to Mg efflux out of RBC, partially compensates for the intracellular increase [24].
Nitric oxide enhances salt tolerance in maize seedlings through increasing activities of proton-pump and Na+/H+ antiport in the tonoplast.