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 ?
Maduke's interest in the CLC family is that half of the members are chloride channels, while the other half are chloride-proton antiporters.
These NSTs are antiporters in which nucleotide sugar entry into the ER/Golgi is coupled to equimolar exit of the corresponding nucleoside monophosphate from the ER/Golgi lumen (38).
Nucleotide sugars enter the lumen of the Golgi via specific antiporters.
2+] functioning by energy-dependent efflux of toxic ions through ATPases and chemiosmotic cation-proton antiporters.