Published Online: 3 MAY 2005
Copyright © 2001 John Wiley & Sons, Ltd. All rights reserved.
How to Cite
Böck, A. 2005. Selenocysteine. eLS. .
- Published Online: 3 MAY 2005
The trace element selenium is present in the form of selenocysteine in selected proteins of organisms from all three lines of descent. Selenocysteine incorporation is DNA-encoded, determined by the UGA codon, and occurs via a unique mechanism representing an expansion of the genetic code.