selenocysteine

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 recognizes certain UGA nonsense codons. ...

Selenocysteine

Selenocysteine: An amino acid in which selenium takes the place of sulfur in the amino acid cysteine. Its formula is H-Se-CH2-CH(NH2)-COOH. Selenocysteine is an essential component of selenium-containing proteins, or selenoproteins.
Found on http://www.medterms.com/script/main/art.asp?articlekey=39067

selenocysteine

<amino acid> 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 ...
Found on http://www.mondofacto.com/facts/dictionary?selenocysteine

selenocysteine

Type: Term Pronunciation: sĕ-lē′nō-sis′tē-ēn Definitions: 1. Cysteine containing selenium in place of one sulfur atom.
Found on http://www.medilexicon.com/medicaldictionary.php?t=80779

Selenocysteine

Selenocysteine is a cysteine analogue with a selenium-containing selenol group in place of the sulfur-containing thiol group. It is present in several enzymes (for example glutathione peroxidases, tetraiodothyronine 5` deiodinases, thioredoxin reductases, formate dehydrogenases, glycine reductases, selenophosphate synthetase 1, methionine-R-sulfo....
Found on http://en.wikipedia.org/wiki/Selenocysteine
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