All are true about selenocystiene EXCEPT:
Selenocysteine is found in approximately 25 human proteins. Enzymes which use selenocysteine at their active sites are known as Selenoproteins e.g. 1. Glutathione peroxidase 2. Thioredoxinreductase 3. Iodothyroninedeiodinase Precursor amino acid for selenocysteine is serine. (not cysteine or methionine) Coded by UGA codon
Considered as 21stAmino acid
Coded by UGA
Occurs in glutathione peroxidase
Made of cysteine and methionine
Classification and metabolism of amino acids