7AY7

Structure of SARS-CoV-2 Main Protease bound to Isofloxythepin


X-RAY DIFFRACTION

Starting Model(s)

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

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION7.529125% PEG1500, 5% DMSO, 0.1 M MIB pH 7.5
Crystal Properties
Matthews coefficientSolvent content
1.9336.22

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 112.915α = 90
b = 52.973β = 102.944
c = 44.763γ = 90
Symmetry
Space GroupC 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100PIXELDECTRIS PILATUS 6M-F2020-04-28MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONPETRA III, DESY BEAMLINE P111.033PETRA III, DESYP11

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)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
11.5543.6398.960.99913.753.73704221.08
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)CC (Half)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.551.6070.426

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-VALUE6YNQ1.5543.631.3537029124698.960.16720.16620.19528.22
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_d21.094
f_angle_d1.2088
f_chiral_restr0.0578
f_bond_d0.0102
f_plane_restr0.0073
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2367
Nucleic Acid Atoms
Solvent Atoms339
Heterogen Atoms62

Software

Software
Software NamePurpose
REFMACrefinement
PHENIXrefinement
DIALSdata reduction
DIALSdata scaling
PHENIXphasing