antiport /an·ti·port/ (an´tĭ-port) a mechanism of coupling the transport of two compounds across a membrane in opposite directions. 
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Antiport: sodium-calcium exchanger. The electrochemical gradient of Na+ is used to pump Ca2+ out of the cell and thereby regulate the cytosolic Ca2+ level.
an·ti·port ( n t -pôrt )n. A mechanism for the coupled transport of two different molecules or ions through a membrane in opposite directions. |
antiport
a cell membrane structure that transports two molecules at once through the membrane in opposite directions.
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