1. 
   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 op http://www.medterms.com/script/main/art.html?articlekey=39067
   
   
2. 
   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 su...
   Found op http://www.encyclo.co.uk/visitor-contributions.php
   
   
3. 
   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 ...
   Found op http://www.mondofacto.com/facts/dictionary?selenocysteine
   
   
4. 
   Selenocysteine
   ==Nomenclature== The joint nomenclature committee of the IUPAC/IUBMB has officially recommended the three-letter symbol Sec and the one-letter symbol U for selenocysteine. ==Structure== Selenocysteine has a structure similar to that of cysteine, but with an atom of selenium taking the place of the ...
   Found op http://en.wikipedia.org/wiki/Selenocysteine
   
   
5. 
   selenocysteine
   Type: Term Pronunciation: sĕ-lē′nō-sis′tē-ēn Definitions: 1. Cysteine containing selenium in place of one sulfur atom.
   Found op http://www.medilexicon.com/medicaldictionary.php?t=80779
   
   

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