7BAJ

Crystal structure of ligand-free SARS-CoV-2 main protease


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 6Y2E 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP292200mM ammonium chloride, 5%glycerol and 18% polyethylene glycol mw. 3350
Crystal Properties
Matthews coefficientSolvent content
2.0238.98

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 115.354α = 90
b = 53.613β = 101.37
c = 44.979γ = 90
Symmetry
Space GroupC 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100PIXELDECTRIS EIGER2 XE 16Mmirrors2020-11-24MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONDIAMOND BEAMLINE I040.9795DiamondI04

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
11.6548.4999.90.0380.0460.0250.99913.23.332468
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)RedundancyNumber Unique Reflections (All)
11.651.6899.90.3350.40.2150.8993.4

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 REPLACEMENTTHROUGHOUT6y2e1.6548.4430849161299.810.18660.18550.2066RANDOM24.959
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]
0.36-0.91-0.92
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg34.347
r_dihedral_angle_4_deg18.488
r_dihedral_angle_3_deg12.79
r_dihedral_angle_1_deg7.879
r_angle_refined_deg1.628
r_angle_other_deg1.517
r_chiral_restr0.081
r_bond_refined_d0.009
r_gen_planes_refined0.008
r_bond_other_d0.001
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg34.347
r_dihedral_angle_4_deg18.488
r_dihedral_angle_3_deg12.79
r_dihedral_angle_1_deg7.879
r_angle_refined_deg1.628
r_angle_other_deg1.517
r_chiral_restr0.081
r_bond_refined_d0.009
r_gen_planes_refined0.008
r_bond_other_d0.001
r_gen_planes_other0.001
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2346
Nucleic Acid Atoms
Solvent Atoms250
Heterogen Atoms

Software

Software
Software NamePurpose
REFMACrefinement
DIALSdata reduction
Aimlessdata scaling
MOLREPphasing