Source:http://linkedlifedata.com/resource/umls/id/C0010654
MSH: A thiol-containing non-essential amino acid that is oxidized to form CYSTINE.,CSP: primary aminoacid with the side group -CH2SH, capable of forming disulfide bonds (cystine) with other cysteine residues to stabilize protein tertiary and oligomeric structure.,NCI: Amino acid with side chain -CH2SH.,NCI: A non-essential sulfur-containing amino acid in humans, related to cystine, Cysteine is important for protein synthesis, detoxification, and diverse metabolic functions. Found in beta-keratin, the main protein in nails, skin, and hair, Cysteine is important in collagen production, as well as skin elasticity and texture. Also required in the manufacture of amino acid taurine, Cysteine is a component of the antioxidant glutathione, and plays a role in the metabolism of essential biochemicals such as coenzyme A, heparin, and biotin. (NCI04)