Cowper, B;
Shariff, L;
Chen, W;
Gibson, SM;
Di, WL;
Macmillan, D;
(2015)
Expanding the scope of N → S acyl transfer in native peptide sequences.
Organic & Biomolecular Chemistry
, 13
(27)
pp. 7469-7476.
10.1039/c5ob01029b.
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Abstract
Understanding the factors that influence N → S acyl transfer in native peptide sequences, and discovery of new reagents that facilitate it, will be key to expanding its scope and applicability. Here, through a study of short model peptides in thioester formation and cyclisation reactions, we demonstrate that a wider variety of Xaa-Cys motifs than originally envisaged are capable of undergoing efficient N → S acyl transfer. We present data for the relative rates of thioester formation and cyclisation for a representative set of amino acids, and show how this expanded scope can be applied to the production of the natural protease inhibitor Sunflower Trypsin Inhibitor-1 (SFTI-1).
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