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Inhibition of amino acid transport into lymphoid cells by the glutamine analog L-2-amino-4-oxo-5-chloropentanoate.

Abstract：

:Transport of L-glutamine and of the chloroketone glutamine analog L-2-amino-4-oxo-5-chloropentanoate into lymphoid cells is mediated by the same system. Arginine and a number of other amino acids (e.g., glutamate, aspartate, and lysine) are transported to a much lesser extent by this system. However, after uptake of the chloroketone into the cells, the transport of glutamine, arginine, and other amino acids is markedly inhibited, due evidently to reaction of the chloroketone with intracellular components that are involved in amino acid transport. The chloroketone acts more effectively on growing than on resting cells. Treatment of lymphoid cells with the chloroketone or with L-chloro-2,4-dinitrobenzene leads to rapid and complete depletion of intracellular glutathione without affecting cell viability. These reagents appear to be useful experimental tools for studies of glutathione function and metabolism.

journal_name

Proc Natl Acad Sci U S A

journal_title

Proceedings of the National Academy of Sciences of the United States of America

authors

Novogrodsky A,Nehring RE Jr,Meister A

doi

10.1073/pnas.76.10.4932

subject

Has Abstract

pub_date

1979-10-01 00:00:00

pages

4932-5

issue

10

eissn

0027-8424

issn

1091-6490

journal_volume

76

pub_type

杂志文章

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