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Crystal structure of polymerase acid protein (PA) from Influenza A virus, WILSON-SMITH/1933 (H1N1) bound to follow on fragment EBSI-4723 4-(5-chlorothiophen-2-yl)-1H-pyrazole
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 4IUJ
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 7.5 293 20 mg/mL protein against Morpheus screen condition H6 10% PEG 8000, 20% EG, 0.02 M each amino acid, 0.1 M MOPS/Hepes pH 7.5 soaked with BSI4723 for 6 days at 25 mM from a 250 mM stock solution in DMSO-d6
Crystal Properties Matthews coefficient Solvent content 2.55 51.83
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 68.85 α = 90 b = 68.85 β = 90 c = 396.33 γ = 120
Symmetry Space Group P 65 2 2
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 100 CCD MARMOSAIC 300 mm CCD 2017-02-24 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON APS BEAMLINE 21-ID-F 0.97872 APS 21-ID-F
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) Rrim I (All) CC (Half) Net I Over Average Sigma (I) Redundancy Number Reflections (All) Number Reflections (Observed) Observed Criterion Sigma (F) Observed Criterion Sigma (I) B (Isotropic) From Wilson Plot 1 2.45 41.057 99.9 0.092 0.095 0.998 20.66 14.438 22964 -3 45.92
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) Rrim I (All) CC (Half) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 2.45 2.51 100 0.572 0.591 0.941 4.75 14.951
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Cut-off Sigma (F) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (Observed) R-Work (Depositor) R-Work (DCC) R-Free (Depositor) R-Free (DCC) Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT NONE 4IUJ 2.45 41.057 1.36 21754 1049 99.96 0.1735 0.1703 0.1754 0.2368 0.2401 53.3271
Temperature Factor Modeling Anisotropic B[1][1] Anisotropic B[1][2] Anisotropic B[1][3] Anisotropic B[2][2] Anisotropic B[2][3] Anisotropic B[3][3]
RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 13.119 f_angle_d 0.796 f_chiral_restr 0.043 f_bond_d 0.007 f_plane_restr 0.005
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 3164 Nucleic Acid Atoms Solvent Atoms 158 Heterogen Atoms 11
Software Software Software Name Purpose XSCALE data scaling PHASER phasing PHENIX refinement PDB_EXTRACT data extraction XDS data reduction PHASER phasing