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Mechanistic details of glutathione biosynthesis revealed by crystal structures of Saccharomyces cerevisiae glutamate-cysteine ligase

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This creates an extraordinarily high binding affinity with pK = 16.44, approximately 10 million times higher than other tripeptides and comparable to albumins copper binding (pK = 16.2)

Fu SC, Cheuk YC, Chiu WY, Yung SH, Rolf CG, Chan KM

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