8DDI

Crystal Structure of SARS-CoV-2 Main Protease (Mpro) E166N Mutant


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 7LYH 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP293.150.1M Magnesium Chloride, 20% PEG 3350, 10% 1-6HexD, 0.1M HEPES pH 7.5, 0.1M Lithium Sulfate
Crystal Properties
Matthews coefficientSolvent content
2.0339.33

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 116.138α = 90
b = 53.928β = 101.27
c = 44.636γ = 90
Symmetry
Space GroupC 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDRAYONIX MX300-HS2022-06-04MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONAPS BEAMLINE 22-BM1.0APS22-BM

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)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
12.85098.20.11612.183.86641
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.82.850.3652.33

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUT7LYH2.843.81586461095.180.18440.1780.2468RANDOM47.219
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]
1.060.65-0.93-0.36
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_3_deg16.21
r_dihedral_angle_2_deg12.292
r_dihedral_angle_1_deg7.911
r_angle_refined_deg1.151
r_angle_other_deg1.001
r_bond_other_d0.054
r_chiral_restr0.047
r_bond_refined_d0.005
r_gen_planes_refined0.005
r_gen_planes_other0.001
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2357
Nucleic Acid Atoms
Solvent Atoms22
Heterogen Atoms

Software

Software
Software NamePurpose
REFMACrefinement
PDB_EXTRACTdata extraction
HKL-2000data reduction
HKL-2000data scaling
PHASERphasing