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JOURNAL ARTICLE
RESEARCH SUPPORT, NON-U.S. GOV'T
A New Methodology for Incorporating Chiral Linkers into Stapled Peptides.
Chembiochem : a European Journal of Chemical Biology 2017 June 20
Stapled peptides have arisen as a new class of chemical probe and potential therapeutic agents for modulating protein-protein interactions. Here, we report the first two-component i,i+7 stapling methodology that makes use of two orthogonal, on-resin stapling reactions to incorporate linkers bearing a chiral centre into a p53-derived stapled peptide. Post-stapling modifications to the chain were performed on-resin and enabled rapid access to various peptide derivatives from a single staple. The stapled peptides have increased helicity, protease stability and in vitro binding affinities to MDM2 compared to the equivalent unstapled peptide. This approach can be used to generate a library of diverse stapled peptides with different properties starting from a single stapled peptide, with scope for much greater functional diversity than that provided by existing stapling methodologies.
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