7B2U

Crystal Structure of SARS-CoV-2 main protease (Nsp5) in complex with compound 1


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP7.75293100 nL protein (8.3 mg/mL, 50 mM Tris pH 8.0, 300 mM NaCl), 50 nL seeds, 450 nL reservoir (200 mM HEPES pH 7.75, 5% DMSO, 12.5% PEG4K). Soaking: 200 mM HEPES pH 7.75, 10 mM compound, 5% DMSO, 10% PEG300, 20% PEG3K, RT, 2 h.
Crystal Properties
Matthews coefficientSolvent content
1.9938.13

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 44.517α = 90
b = 53.682β = 100.592
c = 114.508γ = 90
Symmetry
Space GroupP 1 21 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100PIXELDECTRIS EIGER X 16M2020-11-12MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONMAX IV BEAMLINE BioMAX0.976MAX IVBioMAX

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)RedundancyNumber Reflections (All)Number Reflections (Observed)Observed Criterion Sigma (F)Observed Criterion Sigma (I)B (Isotropic) From Wilson Plot
11.5553.6896.50.060.0660.0250.99910.16.57454022.54
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Rpim I (All)CC (Half)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.551.5882.61.110.5850.7081.34.4

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTFREE R-VALUE7k3t1.5548.451.3474298365096.150.21020.20830.246328.65
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
KeyRefinement Restraint Deviation
f_dihedral_angle_d18.7285
f_angle_d1.0758
f_chiral_restr0.0634
f_bond_d0.0096
f_plane_restr0.008
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms4716
Nucleic Acid Atoms
Solvent Atoms515
Heterogen Atoms78

Software

Software
Software NamePurpose
PHENIXrefinement
REFMACrefinement
XDSdata reduction
Aimlessdata scaling
PHASERphasing