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Influence of Macrocyclization on Allosteric, Juxtamembrane-Derived, Stapled Peptide Inhibitors of the Epidermal Growth Factor Receptor (EGFR)

Published Web Location

https://doi.org/10.1021/ol502426b
Abstract

The hydrocarbon-stapled peptide E1(S) allosterically inhibits the kinase activity of the epidermal growth factor receptor (EGFR) by blocking a distant but essential protein-protein interaction: a coiled coil formed from the juxtamembrane segment (JM) of each member of the dimeric partnership.1 Macrocyclization is not required for activity: the analogous unstapled (but alkene-bearing) peptide is equipotent in cell viability, immunoblot, and bipartite display experiments to detect coiled coil formation on the cell surface.

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