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J Am Chem Soc. 2003 May 7;125(18):5268-9.

Protein assembly by orthogonal chemical ligation methods.

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1
Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706, USA.

Abstract

Chemical synthesis harbors the potential to provide ready access to natural proteins as well as to create nonnatural ones. The Staudinger ligation of a peptide containing a C-terminal phosphinothioester with a peptide containing an N-terminal azide gives an amide with no residual atoms. This method for amide bond formation is orthogonal and complementary to other ligation methods. Herein, we describe the first use of the Staudinger ligation to couple peptides on a solid support. The fragment thus produced is used to assemble functional ribonuclease A via native chemical ligation. The synthesis of a protein by this route expands the versatility of chemical approaches to protein production.

PMID:
12720426
DOI:
10.1021/ja029752e
[Indexed for MEDLINE]
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