Bicarbonate-chloride exchange in gill plasma membranes of blue crab.

@article{Lee1985BicarbonatechlorideEI,
  title={Bicarbonate-chloride exchange in gill plasma membranes of blue crab.},
  author={Seon Ho Lee and John B. Pritchard},
  journal={The American journal of physiology},
  year={1985},
  volume={249 5 Pt 2},
  pages={
          R544-50
        }
}
The uptake of chloride was studied in gill plasma membrane vesicles from low-salinity-adapted blue crabs (Callinectes sapidus). Cl- uptake was not Na+ dependent. However, when a HCO-3 gradient (in greater than out) was imposed across the membrane, a transient overshoot of about 2.5-fold was produced. Approximately 90% of the Cl- uptake reflected entry into the osmotically active intravesicular space. Cl- itself, nitrate, hydroxyl, and sulfite could substitute for HCO-3. The HCO-3/Cl- exchange… CONTINUE READING
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