Chloride/bicarbonate exchange in human erythrocytes.
نویسندگان
چکیده
منابع مشابه
Cation Exchange in Mammalian Erythrocytes
Freshly drawn heparinized human whole blood is exposed to x-rays in amounts up to 54,000 r in vitro and then equilibrated under a controlled atmosphere at 24 or 38 degrees C. For as long as 26 hours following exposure, potassium is progressively lost from the cells and quantitatively replaced by sodium with little, if any, osmotic disturbance. The mean rate of loss at 20,000 r and 24 degrees C....
متن کاملThe monovalent cation "leak" transport in human erythrocytes: an electroneutral exchange process.
The mechanism of the "ground permeability" of the human erythrocyte membrane for K+ and Na+ was investigated with respect to a possible involvement of a previously unidentified specific transport pathway, because earlier studies showed that it cannot be explained on the basis of simple electrodiffusion. In particular, we analyzed and described the increase in the (ouabain+bumetanide+EGTA)-insen...
متن کاملKinetic Comparison of Exchange Transport of Sugars with Nonexchange Transport in Human Erythrocytes
From the kinetic point of view two types of sugar transport take place in human erythrocytes. The first of these is characterized by the fact that during the movement of a sugar molecule in one direction another molecule of the same sugar or of one sharing the same carrier system moves in the opposite direction. This process is called exchange transport. The second process, which will be called...
متن کاملGlutathione turnover in human erythrocytes. Inhibition by buthionine sulfoximine and incorporation of glycine by exchange.
Previous investigations have indicated that [`4C]glycine is incorporated into erythrocyte glutathione at a rate which exceeds by severalfold the rate of cysteine and glutamate incorporation. The discrepancy between the rates has generally been attributed to the known differences in the rates at which these amino acids are transported into erythrocytes. In the present investigation, human erythr...
متن کاملRapid electrogenic sulfate-chloride exchange mediated by chemically modified band 3 in human erythrocytes
One of the modes of action of the red blood cell anion transport protein is the electrically silent net exchange of 1 Cl- for 1 SO4= and 1 H+. Net SO4(=)-Cl- exchange is accelerated by low pH or by conversion of the side chain of glutamate 681 into an alcohol by treatment of intact cells with Woodward's reagent K (WRK) and BH4-. The studies described here were performed to characterize the elec...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Journal of Physiology
سال: 1978
ISSN: 0022-3751
DOI: 10.1113/jphysiol.1978.sp012177