antiport


Also found in: Dictionary, Encyclopedia.

antiport

 [an´tĭ-port]
a cell membranetransport mechanism that transports two molecules at once through the membrane in opposite directions. See also countertransport and symport.
 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

(an'tē-pōrt),
The coupled transport of two different molecules or ions through a membrane in opposite directions by a common carrier mechanism (antiporter). Compare: symport, uniport.
[anti- + L. porto, to carry]

antiport

/an·ti·port/ (an´tĭ-port) a mechanism of coupling the transport of two compounds across a membrane in opposite directions.
Enlarge picture
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

(an'ti-pōrt)
The coupled transport of two different molecules or ions through a membrane in opposite directions by a common carrier mechanism (antiporter).
Compare: symport, uniport
[anti- + L. porto, to carry]

antiport

the transport of a SOLUTE across a MEMBRANE coupled to the transport of a different solute in the opposite direction.

antiport

a cell membrane structure that transports two molecules at once through the membrane in opposite directions.
References in periodicals archive ?
SOS1 may be active as an antiport transporter and as ionic channel in the loading of xylem or even as a [Na.
Role of Na+/H+ antiport in intracellular pH regulation by rabbit enterocytes.
12m layer for those treatments and, therefore, did not counteract the alkalinity of antiport uptake of leached N[O.
Because of its redox instability, extracellular cysteine is mostly present in cystine, which can be transported into cells through cystine/glutamate antiport system [X.
drought [83], sequestration of heavy metals through metal-proton antiport systems [85] and chilling stress [86].
2001) is widely accepted due to its precise detections on the movement of plasma membrane (PM) H+-ATPase in the Na+/H+ antiport according to ion kinetics in response to salt shock.
Impaired function of Na, K-ATPase, Na-H antiport, which is typical of arterial hypertension, may promote an increase in plasma electrolytes.
Salt tolerance conferred by over expression of a vacuolar Na+/H+ antiport in Arabidopsis.
antiport activity and its energization by the vacuolar [H.