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PREPARATIVE BIOCHEMISTRY & BIOTECHNOLOGY, vol.41, no.1, pp.30-39, 2011 (SCI-Expanded)
Cysteine is a nonessential aminoacid, meaning that cysteine can be made in the human body. It is one of the few amino acids that contain sulfur This allows cysteine to bond in a special way and maintain the structures of proteins in the body. Cysteine strengthens the protective lining of the stomach and intestines, which may help prevent damage caused by aspirin and similar drugs. In addition, cysteine may play an important role in the communication between immune system cells.