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Crystal structure of N-terminal SARS-CoV-2 nsp1 in complex with fragment hit 1E7 refined against the anomalous diffraction data
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 8A55
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 6.5 291.15 The crystallisation condition used is Index 71 (Cat. No.: HR2-944-71; Hampton Research, Aliso Viejo, CA, USA) containing 0.1 M BIS-TRIS pH 6.5, 0.2 M NaCl and 25% w/v Polyethylene glycol 3350.
Crystal Properties Matthews coefficient Solvent content 1.77 30.42
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 36.36 α = 90 b = 36.36 β = 90 c = 140.22 γ = 90
Symmetry Space Group P 43 21 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 PIXEL DECTRIS PILATUS3 2M 2023-07-21 M SINGLE WAVELENGTH 2 1 x-ray 80 PIXEL DECTRIS PILATUS 12M 2023-05-22 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ESRF BEAMLINE MASSIF-1 0.96546 ESRF MASSIF-1 2 SYNCHROTRON DIAMOND BEAMLINE I23 2.75520 Diamond I23
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) Rrim I (All) Rpim 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 1.44 35.2 99.7 0.151 0.154 0.032 0.991 11.8 23.6 18158
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) Rrim I (All) Rpim I (All) CC (Half) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 1.44 1.46 1.711 1.748 0.357 0.732 22.9
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method 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) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT FREE R-VALUE 1.44 35.2 1.35 18078 889 99.71 0.167 0.1641 0.1777 0.2249 0.2244 RANDOM
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 8.676 f_angle_d 1.214 f_chiral_restr 0.092 f_plane_restr 0.013 f_bond_d 0.009
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 918 Nucleic Acid Atoms Solvent Atoms 69 Heterogen Atoms
Software Software Software Name Purpose PHENIX refinement Aimless data scaling XDS data reduction