Sapphyrin–lasalocid conjugate: a novel carrier for aromatic amino acid transport

1996 ◽  
pp. 1119-1120 ◽  
Author(s):  
Jonathan L. Sessler ◽  
Andrei Andrievsky
Keyword(s):  
Amino Acid ◽  
Amino Acid Transport ◽  
Aromatic Amino Acid ◽  
Acid Transport

Membrane transport of aromatic amino acids by Hymenolepis diminuta (Cestoda)

Parasitology ◽  
1980 ◽  
Vol 81 (2) ◽  
pp. 395-403 ◽  
Author(s):  
P. W. Pappas ◽  
H. R. Gamble
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Amino Acid Transport ◽  
Aromatic Amino Acid ◽  
Aromatic Amino Acids ◽  
Amino Acid Uptake ◽  
Hymenolepis Diminuta ◽  
Acid Uptake ◽  
Acid Transport ◽  
Concentration Difference

SUMMARYAromatic amino acids (phenylalanine, tryptophan and tyrosine) are absorbed by Hymenolepis diminuta through a combination of mediated (non-Na+-sensitive) transport and diffusion. All 3 amino acids are accumulated against an apparent concentration difference during a 30-min incubation of tapeworms in 0·1 mM 3H-labelled amino acid. Inhibitor studies demonstrate that phenylalanine, tryptophan and tyrosine are mutually competitive inhibitors of the uptake of each other, and the uptake of these amino acids is inhibited by aliphatic amino acids but not by basic or dicarboxylic amino acids. The D- and L-isomers of aromatic amino acids are equally effective in inhibiting aromatic amino acid uptake. The data indicate that at least 3 amino acid transport loci are involved in aromatic amino acid transport by H. diminuta.

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
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