8bxs | pdb_00008bxs

Fragment-linked stabilizer for ERa - 14-3-3 interaction (1075293)

spinqualitylabelsall models 8bxs, resolution 1.60Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 8bxs is a 2 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 1.6Å Ligands: S2E, TPO Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function 1433S_HUMAN Adapter protein implicated in the regulation of a large spectrum of both general and specialized signaling pathways. Binds to a large number of partners, usually by recognition of a phosphoserine or phosphothreonine motif. Binding generally results in the modulation of the activity of the binding partner. When bound to KRT17, regulates protein synthesis and epithelial cell growth by stimulating Akt/mTOR pathway (By similarity). p53-regulated inhibitor of G2/M progression. Publication Abstract from PubMed Small-molecule stabilization of protein-protein interactions (PPIs) is a promising strategy in chemical biology and drug discovery. However, the systematic discovery of PPI stabilizers remains a largely unmet challenge. Herein we report a fragment-linking approach targeting the interface of 14-3-3 and a peptide derived from the estrogen receptor alpha (ERalpha) protein. Two classes of fragments-a covalent and a noncovalent fragment-were co-crystallized and subsequently linked, resulting in a noncovalent hybrid molecule in which the original fragment interactions were largely conserved. Supported by 20 crystal structures, this initial hybrid molecule was further optimized, resulting in selective, 25-fold stabilization of the 14-3-3/ERalpha interaction. The high-resolution structures of both the single fragments, their co-crystal structures and those of the linked fragments document a feasible strategy to develop orthosteric PPI stabilizers by linking to an initial tethered fragment. From Tethered to Freestanding Stabilizers of 14-3-3 Protein-Protein Interactions through Fragment Linking.,Visser EJ, Jaishankar P, Sijbesma E, Pennings MAM, Vandenboorn EMF, Guillory X, Neitz RJ, Morrow J, Dutta S, Renslo AR, Brunsveld L, Arkin MR, Ottmann C Angew Chem Int Ed Engl. 2023 Jul 16:e202308004. doi: 10.1002/anie.202308004. PMID:37455289 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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