gamma-glutamyl cycle

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γ-glu·tam·yl cy·cle

a proposed pathway for the glutathione-dependent transport of certain amino acids (most notably l-cystine, l-methionine, and l-glutamine) and dipeptides into certain cells; this cycle requires the formation of γ-glutamyl amino acids and γ-glutamyl dipeptides as well as a protein for the translocation of these di- and triisopeptides into the cells.
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Glutathione synthetase deficiency and other disorders of the g-glutamyl cycle. In: Scriver CR, Beaudet AL, Sly WS, Valle D, eds.
Determination of blood total, reduced, and oxidized glutathione in pediatric subjects

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