Amino Acid Transport in Photoautotrophic Suspension Cells of Chenopodium rubrum L.: Stereospecificity and Interaction with Potassium Ions

1981 ◽  
Vol 102 (4) ◽  
pp. 353-361 ◽  
Author(s):  
Frank Steinmüller ◽  
Friedrich-Wilhelm Bentrup
Keyword(s):  
Amino Acid ◽  
Amino Acid Transport ◽  
Chenopodium Rubrum ◽  
Potassium Ions ◽  
Acid Transport ◽  
Suspension Cells

scholarly journals Interactions between potassium ions and glycine transport in the yeast Saccharomyces carlsbergensis

1970 ◽  
Vol 120 (4) ◽  
pp. 845-852 ◽  
Author(s):  
A. A. Eddy ◽  
K. J. Indge ◽  
K. Backen ◽  
J. A. Nowacki
Keyword(s):  
Amino Acid ◽  
Amino Acid Transport ◽  
Initial Rate ◽  
Competitive Inhibitor ◽  
Yeast Cells ◽  
Potassium Ions ◽  
Acid Transport ◽  
Saccharomyces Carlsbergensis ◽  
Glycine Transport

A study has been made of the effects of both varying the pH and extracellular [K+] on the initial rate of uptake of glycine (v) by a strain of Saccharomyces carlsbergensis that concentrated the amino acid, with respect to the extracellular phase, by up to 1400 times. When no other substrate than glycine was provided and [glycine] was relatively small (≤0.2mm) (1) v increased fivefold when the pH was lowered from 7 to 4.5; (2) v fell by up to about 80% as [K+] rose, K+ behaving as a non-competitive inhibitor of the system, with Ki 0.33mequiv./l at pH7; (3) the absorption of glycine caused up to about 2 or 3 equiv. of K+ to leave the yeast cells. These three phenomena were each less evident when glucose was present. An analogy is drawn between the respective interactions of H+ and K+ with the yeast system and the well recognized effects of Na+ and K+ on amino acid transport in certain mammalian systems.

Placental Amino Acid transport is decreased after exposure to hypoxia

2008 ◽  
Vol 68 (S 01) ◽  
Author(s):  
FM von Versen-Höynck ◽  
A Rajakumar ◽  
JM Roberts ◽  
W Rath ◽  
RW Powers
Keyword(s):  
Amino Acid ◽  
Amino Acid Transport ◽  
Acid Transport

scholarly journals Induction of amino acid transport in primary cultures of adult rat liver parenchymal cells by insulin.

1976 ◽  
Vol 251 (10) ◽  
pp. 3014-3020 ◽  
Author(s):  
R F Kletzien ◽  
M W Pariza ◽  
J E Becker ◽  
V R Potter ◽  
F R Butcher
Keyword(s):  
Amino Acid ◽  
Rat Liver ◽  
Amino Acid Transport ◽  
Primary Cultures ◽  
Acid Transport ◽  
Liver Parenchymal ◽  
Adult Rat ◽  
Parenchymal Cells
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