scholarly journals Regulation of active amino acid transport by growth-related changes in membrane potential in a human fibroblast.

1978 ◽  
Vol 253 (22) ◽  
pp. 8257-8262
Author(s):  
M.L. Villereal ◽  
J.S. Cook
Keyword(s):  
Membrane Potential ◽  
Amino Acid ◽  
Amino Acid Transport ◽  
Human Fibroblast ◽  
Acid Transport ◽  
Active Amino Acid

scholarly journals Age-related Regulation of Active Amino Acid Transport in the Ileum of Broiler Chickens

2020 ◽  
Vol 57 (2) ◽  
pp. 131-137
Author(s):  
Mikako Shibata ◽  
Tatsuyuki Takahashi ◽  
Kanari Endo ◽  
Takaharu Kozakai ◽  
Yoshiyuki Azuma ◽  
...  
Keyword(s):  
Amino Acid ◽  
Amino Acid Transport ◽  
Broiler Chickens ◽  
Acid Transport ◽  
Age Related ◽  
Active Amino Acid

Alterations in membrane permeability with trypsin treatment

1981 ◽  
Vol 59 (8) ◽  
pp. 668-675 ◽  
Author(s):  
P. A. Johnson ◽  
R. M. Johnstone
Keyword(s):  
Amino Acid ◽  
Membrane Permeability ◽  
Amino Acid Transport ◽  
Acid Transport ◽  
Transport Activity ◽  
Trypsin Treatment ◽  
Trypsin Inhibition ◽  
Active Amino Acid ◽  
Glycine Transport ◽  
Normal Transport

Trypsin treatment of Ehrlich cells reduced sodium-coupled amino acid transport, lowered ATP levels, and abolished cation gradients. The data suggest that the decrease in active amino acid transport results from an alteration in membrane permeability caused by DNA released from a fraction of the cells upon trypsin treatment. The reduced amino acid transport appears to be the result of an abolition of ion gradients required for transport since vesicles prepared from these cells show near normal transport activity. The altered permeability of the membrane can be restored by incubation of the cells with serum. Protein synthesis does not appear to play a role in the restoration of Na+-dependent amino acid transport since restoration is unaffected by the presence of cycloheximide. The recovery of activity does depend partly on the presence of Ca2+ in the incubation medium since reversal of the trypsin inhibition of glycine transport can be obtained on incubation with Ca2+ and glucose.

Membrane potential and amino acid transport in a mutant chinese hamster ovary cell line

1991 ◽  
Vol 146 (3) ◽  
pp. 417-424 ◽  
Author(s):  
Bianca Maria Rotoli ◽  
Ovidio Bussolati ◽  
Valeria Dall'asta ◽  
Gian Carlo Gazzola
Keyword(s):  
Membrane Potential ◽  
Amino Acid ◽  
Cell Line ◽  
Chinese Hamster Ovary Cell ◽  
Chinese Hamster Ovary ◽  
Amino Acid Transport ◽  
Chinese Hamster ◽  
Ovary Cell ◽  
Acid Transport ◽  
Ovary Cell Line
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