6e3p

The N-terminal domain of PA endonuclease from the influenza H1N1 virus in complex with 6-(3-(1H-tetrazol-5-yl)phenyl)-3-hydroxy-4-oxo-1,4-dihydropyridine-2-carboxylic acid

spinqualitylabelsall models 6e3p, resolution 2.80Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 6e3p is a 1 chain structure with sequence from Influenza A virus (A/California/04/2009(H1N1)). Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.8Å Ligands: HO1, MN Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function C3W5S0_I09A0 Publication Abstract from PubMed Significant efforts have been reported on the development of influenza antivirals including inhibitors of the RNA-dependent RNA polymerase PA N-terminal (PAN) endonuclease. Based on recently identified, highly active metal-binding pharmacophores (MBPs) for PAN endonuclease inhibition, a fragment-based drug development campaign was pursued. Guided by coordination chemistry and structure-based drug design, MBP scaffolds were elaborated to improve activity and selectivity. Structure-activity relationships were established and used to generate inhibitors of influenza endonuclease with tight-binding affinities. The activity of these inhibitors was analyzed using a fluorescence-quenching-based nuclease activity assay, and binding was validated using differential scanning fluorometry. Lead compounds were found to be highly selective for PAN endonuclease against several related dinuclear and mononuclear metalloenzymes. Combining principles of bioinorganic and medicinal chemistry in this study has resulted in some of the most active in vitro influenza PAN endonuclease inhibitors with high ligand efficiencies. SAR Exploration of Tight-Binding Inhibitors of Influenza Virus PA Endonuclease.,Credille CV, Morrison CN, Stokes RW, Dick BL, Feng Y, Sun J, Chen Y, Cohen SM J Med Chem. 2019 Nov 14;62(21):9438-9449. doi: 10.1021/acs.jmedchem.9b00747. Epub, 2019 Oct 17. PMID:31536340 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also RNA polymerase 3D structures

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