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
This is not the most recent version of the article. View current version (14 APR 2015)
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.