7un4 | pdb_00007un4

Structure of MAP kinase phosphatase 5 in complex with 3,3-dimethyl-1-((9-propyl-5,6-dihydrothieno[3,4-h]quinazolin-2-yl)thio)butan-2-one, an allosteric inhibitor

spinqualitylabelsall models 7un4, resolution 2.70Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 7un4 is a 6 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 2.7Å Ligands: NVF Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function DUS10_HUMAN Protein phosphatase involved in the inactivation of MAP kinases. Has a specificity for the MAPK11/MAPK12/MAPK13/MAPK14 subfamily. Publication Abstract from PubMed Mitogen-activated protein kinase (MAPK) phosphatase 5 (MKP5) is responsible for regulating the activity of the stress-responsive MAPKs and has been put forth as a potential therapeutic target for a number of diseases, including dystrophic muscle disease a fatal rare disease which has neither a treatment nor cure. In previous work, we identified Compound 1 (3,3-dimethyl-1-((9-(methylthio)-5,6-dihydrothieno[3,4-h]quinazolin-2-yl)thio)but an-2-one) as the lead compound of a novel class of MKP5 inhibitors. In this work, we explore the structure-activity relationship for inhibition of MKP5 through modifications to the scaffold and functional groups present in 1. A series of derivative compounds was designed, synthesized, and evaluated for inhibition of MKP5. In addition, the X-ray crystal structures of six enzyme-inhibitor complexes were solved, further elucidating the necessary requirements for MKP5 inhibition. We found that the parallel-displaced pi-pi interaction between the inhibitor three-ring core and Tyr435 is critical for modulating potency, and that modifications to the core and functionalization at the C-9 position are essential for ensuring proper positioning of the core for this interaction. These results lay the foundation from which more potent MKP5 allosteric inhibitors can be developed for potential therapeutics towards the treatment of dystrophic muscle disease. Defining the structure-activity relationship for a novel class of allosteric MKP5 inhibitors.,Gannam ZTK, Jamali H, Kweon OS, Herrington J, Shillingford SR, Papini C, Gentzel E, Lolis E, Bennett AM, Ellman JA, Anderson KS Eur J Med Chem. 2022 Sep 2;243:114712. doi: 10.1016/j.ejmech.2022.114712. PMID:36116232 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also MAP kinase phosphatase

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