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The identification of a targeted therapy for patients with triple-negative breast cancer (TNBC) is one of the most urgent needs in breast cancer therapeutics. The p53 gene is mutated in approximately 80% of patients with TNBC, and is a potential therapeutic target for patients with this form of breast cancer. The 2-sulfonylpyrimidine compound, PK11007, preferentially decreases viability in p53-compromised...
The destabilizing p53 cancer mutation Y220C creates an extended crevice on the surface of the protein that can be targeted by small-molecule stabilizers. Here, we identify different classes of small molecules that bind to this crevice and determine their binding modes by X-ray crystallography. These structures reveal two major conformational states of the pocket and a cryptic, transiently open hydrophobic...
Background Structure-based virtual screening techniques can help to identify new lead structures and complement other screening approaches in drug discovery. Prior to docking, the data (protein crystal structures and ligands) should be prepared with great attention to molecular and chemical details. Results Using a subset of 18 diverse targets from the recently introduced DEKOIS 2.0 benchmark set...
In this issue of Structure, Bista and colleagues report that inhibitors of the MDM2/p53 interaction can be designed to interact with a transiently folded α-helical segment of the MDM2 lid region. This suggests that targeting transient protein states in PPI inhibitor design could be a promising strategy to improve affinity and/or selectivity profiles.
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