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X-ray Structure of SARS-CoV-2 main protease covalently modified by compound GRL-091-20
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 7RBZ
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 7.5 278 2.67 mM DTT, 0.33% MPD, 16.7 mM MES pH 6.0, 26.7 mM KCl, 5% PEG-10,000, 16.7 mM HEPES pH 7.5, 0.67% DMSO and 200 uM inhibitor
Crystal Properties Matthews coefficient Solvent content 2.86 56.97
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 97.197 α = 90 b = 82.43 β = 117.206 c = 54.283 γ = 90
Symmetry Space Group C 1 2 1
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 RAYONIX MX-300 2020-07-01 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) 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 1.646 26.7 99.53 0.07269 0.08167 0.03674 0.998 17.86 4.8 45865 22.09
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 1.646 1.705 96.86 0.7296 0.8192 0.3683 0.777 2.15 4.8
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 FREE R-VALUE 7RBZ 1.65 26.7 1.35 45865 2000 99.49 0.128 0.1259 0.1262 0.1741 0.1734 32.52
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 20.7596 f_angle_d 1.831 f_chiral_restr 0.0988 f_bond_d 0.0164 f_plane_restr 0.0121
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 2358 Nucleic Acid Atoms Solvent Atoms 379 Heterogen Atoms 12
Software Software Software Name Purpose PHENIX refinement HKL-2000 data reduction HKL-2000 data scaling PHENIX phasing