Synthesis of thiazolidine thioester peptides and acceleration of native chemical ligation |
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| Authors: | Dheur Julien Ollivier Nathalie Melnyk Oleg |
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| Affiliation: | CNRS UMR 8161, Univ Lille Nord de France, Institut Pasteur de Lille, IFR 142 Molecular and Cellular Medicine, 1 rue du Pr Calmette 59021 Lille Cedex, France. |
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| Abstract: | Thiazolidine thioester peptides were synthesized by reacting bis(2-sulfanylethyl)amido peptides with glyoxylic acid at pH 1. A significant increase in Native Chemical Ligation (NCL) rate was observed with thiazolidine thioesters compared to 3-mercaptopropionic acid-thioester analogues. The method is of particular interest for accelerating valine-cysteine peptide bond formation. |
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