Incorporation of Selenocysteine into Proteins Using Peptide Ligation

Author: Hondal, Robert J.

Source: Protein and Peptide Letters, Volume 12, Number 8, November 2005 , pp. 757-764(8)

Publisher: Bentham Science Publishers

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Abstract:

Expressed protein ligation has become a frequently used technique to insert non-standard amino acids into proteins. The technique has been adapted to insert selenocysteine residues in place of cysteine residue in proteins, taking advantage of the similarity in the chemistries of sulfur and selenium. This replacement can confer unique structural and catalytic properties to enzymes and proteins. The development of this technique also allows for naturally occurring selenoproteins to be produced semisynthetically.

Keywords: selenocysteine; expressed protein ligation; thioredoxin reductase; semisynthetic

Document Type: Review article

Affiliations: 1: Department of Biochemistry, Vermont College of Medicine, The University of Vermont, Bington, VT 05405, USA.

Publication date: 2005-11-01

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Protein & Peptide Letters publishes short papers in all important aspects of protein and peptide research, including structural studies, recombinant expression, function, synthesis, enzymology, immunology, molecular modeling, drug design etc. Manuscripts must have a significant element of novelty, timeliness and urgency that merit rapid publication. Reports of crystallisation, and preliminary structure determinations of biologically important proteins are acceptable. Purely theoretical papers are also acceptable provided they provide new insight into the principles of protein/peptide structure and function.