Journal
JOURNAL OF MEDICINAL CHEMISTRY
Volume 62, Issue 10, Pages 4967-4978Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jmedchem.9b00068
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Funding
- University of Michigan College of Pharmacy
- American Brain Tumor Association
- NIH [R01 CA202018, T32 GM007767, T32 GM008353]
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Protein disorder plays a crucial role in signal transduction and is key for many cellular processes including transcription, translation, and cell cycle. Within the intrinsically disordered protein interactome, the alpha-helix is commonly used for binding, which is induced via a disorder-to-order transition. Because the targeting of protein-protein interactions (PPIs) remains an important challenge in medicinal chemistry, efforts have been made to mimic this secondary structure for rational inhibitor design through the use of stapled peptides. Cap dependent mRNA translation is regulated by two disordered proteins, 4E-BP1 and eIF4G, that inhibit or stimulate the activity of the m(7)G cap-binding translation initiation factor, eIF4E, respectively. Both use an alpha-helical motif for eIF4E binding, warranting the investigation of stapled peptide mimics for manipulating eIF4E PPIs. Herein, we describe our efforts toward this goal, resulting in the synthesis of a cell-active stapled peptide for further development in manipulating aberrant cap-dependent translation in human diseases.
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