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The copper is held by the imidazole nitrogen of the histidine side chain, the alpha-amino nitrogen of the glycine, and the deprotonated amide nitrogen between glycine and histidine, with the lysine side chain and neighboring molecules contributing additional interactions

Interestingly, the plasma amino acid profiles of athletes after exercise were characterized by decreased levels of leucine, isoleucine, asparagine, methionine, lysine, glutamine, alanine, and certain lipids, which resemble the baseline profiles of ME/CFS patients (Nieman et al., 2013)

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The Journal of nutrition, 143(2), 142147