Definition of Selenocysteine

1. Noun. (biochemistry) A naturally-occurring amino acid, present in several enzymes, whose structure is that of cysteine but with the sulfur atom replaced by one of selenium ¹

¹ Source: wiktionary.com

Medical Definition of Selenocysteine

1. 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. May be co translationally coded by a special opal suppressor tRNAase that recognises certain UGA nonsense codons. This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)

Lexicographical Neighbors of Selenocysteine

seleniums
seleniuret
seleniureted
seleniurets
seleniuretted
seleniuretted hydrogen
seleno-
selenoaldehyde
selenoaldehydes
selenoamide
selenoamides
selenocentric
selenocyanate
selenocyanates
selenocyanic acid
selenocysteine (current term)
selenocysteine lyase
selenocysteine methyltransferase
selenocysteines
selenodesy
selenodetic
selenodont
selenoester
selenoesters
selenograph
selenographer
selenographers
selenographic
selenographical
selenographist

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