6nem

3-hydroxy-5-[(naphthalen-1-yl)methyl]-6-[4-(1H-tetrazol-5-yl)phenyl]pyridin-2(1H)-one bound to influenza 2009 pH1N1 endonuclease

spinqualitylabelsall models 6nem, resolution 1.95Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 6nem is a 1 chain structure with sequence from Influenza A virus (A/Luxembourg/43/2009(H1N1)). Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 1.95Å Ligands: KKS, MN, SO4 Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function C6H0Y9_9INFA Publication Abstract from PubMed Seasonal influenza infections are associated with an estimated 250-500,000 deaths annually. Resistance to the antiviral M2 ion-channel inhibitors has largely invalidated their clinical utility. Resistance to neuraminidase inhibitors has also been observed in several influenza A strains. These data have prompted research on inhibitors that target the cap-snatching endonuclease activity of PA. Xofluza, baloxavir marboxil, recently approved for clinical use, inhibits cap-snatching endonuclease. Resistance to Xofluza has been reported in both in vitro systems and in the clinic. A X-ray crystallographic screening campaign of a fragment library targeting the IAV endonuclease enzyme identified 5-chloro-3-hydroxypyridin-2(1H)-one as a bimetal chelating ligand at the active site. We have reported the structure-activity relationships for 3-hydroxypyridin-2(1H)-ones and 3-hydroxyquinolin-2(1H)-ones as endonuclease inhibitors. These studies identified two distinct binding metal modes associated with inhibition of this enzyme that are influenced by the presence of substituents on the phenyl groups at the 5- and 6-positions of 3-hydroxypyridin(1H)-2-ones. We report herein on the structure-activity relationships associated with various para-substituted 5-phenyl derivatives of 6-(p-fluorophenyl)-3-hydroxypyridin (1H)-2-one and the effect of using naphthyl, benzyl, and napthylmethyl groups as alternatives to the p-fluorophenyl substituent on their activity as endonuclease inhibitors. Aryl and arylalkyl substituted 3-hydroxypyridin(1H)-2-ones: Synthesis and evaluation as inhibitors of influenza A endonuclease.,LaVoie EJ, Sagong HY, Bauman JD, Nogales A, Martinez-Sobrido L, Arnold E ChemMedChem. 2019 Apr 14. doi: 10.1002/cmdc.201900084. PMID:30983160 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also RNA polymerase 3D structures

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