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Cystine rather than cysteine is the preferred substrate for elimination by cystathionine lyase: implications for dietary methionine restriction GeroScience Springer Nature Link A simple RP HPLC method for the stability indicating determination of N< em> acetyl L cysteine and N,N'< em> diacetyl L cystine in cell culture media Catabolism of extracellular glutathione supplies cysteine to support tumours Nature Cysteine Mediated Redox Signaling: Chemistry, Biology, and Tools for Discovery Chemical Reviews DFTGuided Discovery of EthynylTriazolylPhosphinates as Modular Electrophiles for Chemoselective Cysteine Bioconjugation and Profiling Stieger 2022 Angewandte Chemie International Edition Wiley Online Library Structural and functional fine mapping of cysteines in mammalian glutaredoxin reveal their differential oxidation susceptibility Nature Communications