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Room-temperature X-ray structure of SARS-CoV-2 main protease catalytic domain C145A precursor, residues nsp4(-6)-1-199-6H
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 7UJ9
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 6.5 287 20-22% PEG3350, 0.1 M Bis-Tris pH 6.5
Crystal Properties Matthews coefficient Solvent content 1.91 35.45
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 34.338 α = 90 b = 64.183 β = 94.65 c = 82.195 γ = 90
Symmetry Space Group P 1 21 1
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 293 PIXEL DECTRIS EIGER R 4M 2022-07-18 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE RIGAKU MICROMAX-007 HF 1.5418
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) 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 1.9 81.92 99.7 0.112 0.986 11.36 5.2 28152
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) CC (Half) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 1.9 1.97 97.9 0.602 0.692 1.34 4.3
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) Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT FREE R-VALUE 1.9 27.31 1.34 28097 1470 99.67 0.1841 0.1816 0.1826 0.2287 0.2238
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 14.14 f_angle_d 0.88 f_chiral_restr 0.059 f_bond_d 0.008 f_plane_restr 0.007
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 2863 Nucleic Acid Atoms Solvent Atoms 130 Heterogen Atoms
Software Software Software Name Purpose PHENIX refinement CrysalisPro data reduction CrysalisPro data scaling PHASER phasing