Projects per year
Abstract
Traditional approaches to bio‐orthogonal reaction discovery have focused on developing reagent pairs that react faster with each other than their metabolic degradation. Glutathione (GSH) is typically responsible for the deactivation of most bio‐orthogonal reagents. Here we demonstrate that GSH promotes a Cu‐catalysed (3+2) cycloaddition reaction between an ynamine and an azide. We show that GSH acts as a redox modulator to control the Cu oxidation state in these cycloadditions. Rate enhancement of this reaction is specific for ynamine substrates and is tuneable by the Cu:GSH ratio. This unique GSH‐mediated reactivity gradient is then utilised in the dual sequential bio‐orthogonal labelling of peptides and oligonucleotides via two distinct chemoselective (3+2) cycloadditions.
Original language | English |
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Article number | e202313063 |
Number of pages | 11 |
Journal | Angewandte Chemie International Edition |
Volume | Early View |
Early online date | 31 Oct 2023 |
DOIs | |
Publication status | E-pub ahead of print - 31 Oct 2023 |
Keywords
- Bio-orthogonal chemistry
- Ligation
- CuAAC
- Peptide
- Oligonucleotide
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Dive into the research topics of 'Glutathione mediates control of dual differential bio‐orthogonal labelling of biomolecules'. Together they form a unique fingerprint.Projects
- 3 Finished
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A biochemical boron tagging stategy: A biochemical boron tagging strategy for biomolecule visualisation and profiling
Watson, A. J. B. (PI)
1/09/22 → 31/08/24
Project: Fellowship
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A Unified Approach to Bio-orthogonal: A Unified Approach to Bio-orthogonal Reaction Discovery in Living systems
Watson, A. J. B. (PI)
1/06/21 → 30/11/23
Project: Standard
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Chemoselective cross-coupling: Chemoselective cross-coupling via control of anion metathesis at Pd(II)
Watson, A. J. B. (PI)
1/07/18 → 31/08/22
Project: Standard