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Structure of the SARS-CoV-2 main protease in complex with inhibitor SR-A-171
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 7JPY
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 289 0.2 M Ammonium phosphate dibasic, 17%
W/v PEG3350, pH8.0
Crystal Properties Matthews coefficient Solvent content 2.77 55.54
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 51.644 α = 90 b = 81.306 β = 96.8 c = 89.718 γ = 90
Symmetry Space Group I 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 120 PIXEL Bruker PHOTON II 2022-05-06 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE RIGAKU MICROMAX-002 1.54301
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 1.75 24.47 96.41 0.06833 0.07213 0.02266 0.999 16.58 8.7 37098 20.29
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 1.75 1.813 0.9098 1 0.4249 0.895 1.54
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 1.75 24.47 1.34 35811 1840 96.45 0.2076 0.206 0.2064 0.2382 0.2378 29.32
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 6.8091 f_angle_d 1.0175 f_chiral_restr 0.0561 f_bond_d 0.0088 f_plane_restr 0.0086
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 2367 Nucleic Acid Atoms Solvent Atoms 297 Heterogen Atoms 21
Software Software Software Name Purpose PHENIX refinement PDB_EXTRACT data extraction PROTEUM PLUS data reduction Aimless data scaling PHENIX phasing