Biologically Active Substance
selenocysteine
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Definitions related to selenocysteine:
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A naturally occurring amino acid in both eukaryotic and prokaryotic organisms. It is found in tRNAs and in the catalytic site of some enzymes. The genes for glutathione peroxidase and formate dehydrogenase contain the TGA codon, which codes for this amino acid.NLM Medical Subject HeadingsU.S. National Library of Medicine, 2021
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An unusual amino acid of proteins, the selenium analogue of cysteine, in which a selenium atom replaces sulphur. Involved in the catalytic mechanism of seleno enzymes such as formate dehydrogenase of E. coli and mammalian glutathione peroxidase.NCI ThesaurusU.S. National Cancer Institute, 2021
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