7CWC

Ambient-Temperature Serial Femtosecond X-ray Crystal structure of SARS-CoV-2 Main Protease at 2.1 A Resolution (P212121)


X-RAY DIFFRACTION

Starting Model(s)

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

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1BATCH MODE2940.2 M Sodium acetate trihydrate, 0.1 M Tris 8.5, 30 % w/v PEG 4000
Crystal Properties
Matthews coefficientSolvent content
2.7855.8

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 69.2α = 90
b = 104.3β = 90
c = 105.6γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray294PIXELCS-PAD CXI-12020-08-16MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1FREE ELECTRON LASERSLAC LCLS BEAMLINE MFX1.25SLAC LCLSMFX

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
12.1421000.99711.2310545380
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)
12.12.20.6288725

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 REPLACEMENTTHROUGHOUT6wqf2.141.9771.3545238201099.830.2320.23070.259364.9627
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]
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms4642
Nucleic Acid Atoms
Solvent Atoms166
Heterogen Atoms

Software

Software
Software NamePurpose
PHENIXrefinement
PHASERphasing
PDB_EXTRACTdata extraction
CrystFELdata reduction
CrystFELdata scaling