6siq

Fragment AZ-012 binding at the p53pT387/14-3-3 sigma interface

spinqualitylabelsall models 6siq, resolution 1.60Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 6siq 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 1.60121Å Ligands: CL, LF5, 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 Stabilization of protein-protein interactions (PPIs) holds great potential for therapeutic agents, as illustrated by the successful drugs rapamycin and lenalidomide. However, how such interface-binding molecules can be created in a rational, bottom-up manner is a largely unanswered question. We report here how a fragment-based approach can be used to identify chemical starting points for the development of small-molecule stabilizers that differentiate between two different PPI interfaces of the adapter protein 14-3-3. The fragments discriminately bind to the interface of 14-3-3 with the recognition motif of either the tumor suppressor protein p53 or the oncogenic transcription factor TAZ. This x-ray crystallography driven study shows that the rim of the interface of individual 14-3-3 complexes can be targeted in a differential manner with fragments that represent promising starting points for the development of specific 14-3-3 PPI stabilizers. Fragment-based Differential Targeting of PPI Stabilizer Interfaces.,Guillory X, Wolter M, Leysen S, Neves JF, Kuusk A, Genet S, Somsen B, Morrow J, Rivers E, van Beek L, Patel J, Goodnow R, Schoenherr H, Fuller N, Cao Q, Doveston RG, Brunsveld L, Arkin MR, Castaldi MP, Boyd H, Landrieu I, Chen H, Ottmann C J Med Chem. 2020 Jun 5. doi: 10.1021/acs.jmedchem.9b01942. PMID:32501690 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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