For example, higher levels of homocysteine mean that certain proteins important in cardiovascular disease and neurodegenerative diseases can end up with a homocysteine attached or incorporated into them.[ref] The process of post-translational protein modification happens all the time and in a number of different ways, including the addition of other amino acids, sugar molecules, or fatty acids
Tryptophan : Needed for normal growth in infants and for nitrogen balance in adults
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l-m , Percent labeling from metabolomics (l) and proteomics (m) at 0 h, demonstrating complete cystine labeling prior to introducing unlabeled GSH (n = 3 technical replicates from one experiment)
In ovo injection of sulfur amino acids, cysteine (3.4 mg) and methionine (5.9 mg), during a high-temperature incubation (39.6C for 6 h daily) from embryonic day (ED) 10 to 18 significantly downregulated stress markers ( HSP90 and corticosterone) and elevated antioxidant defenses (total antioxidant capacity, glutathione, and glutathione:oxidized glutathione) in tissues (265)
Nanotechnology 21:375702