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. 2013 Oct 18;14(10):21021–21044. doi: 10.3390/ijms141021021

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© 2013 by the authors; licensee MDPI, Basel, Switzerland

This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).

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The γ-glutamyl cycle. AA, amino acids; Cys, cysteine; CysGly, cysteinylglycine; Dip, dipeptidase; GCL, γ-glutamylcysteine ligase; GCT, γ-glutamyl cyclotransferase; γGT, γ-glutamyl transpeptidase; γGluCys, γ-glutamylcysteine; Glu, glutamate; Gly, glycine; G6PDH, glucose-6-phosphate dehydrogenase; GPx, glutathione peroxidase; GR, glutathione reductase; GS, glutathione synthetase; GSH, glutathione; GSSG, glutathione disulfide; GST, glutathione-S-transferase; H₂O₂, hydrogen peroxide; NADPH, nicotinamide adenine dinucleotide phosphate; 5-OP, 5-oxoproline; 5-OPase, 5-oxoprolinase; ROH, alcohol; ROOH, hydroperoxide.