7OFT

Structure of SARS-CoV-2 Papain-like protease PLpro in complex with p-hydroxybenzaldehyde


X-RAY DIFFRACTION

Starting Model(s)

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

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP277Co-crystallization with the compounds was achieved mixing 0.2 uL of protein solution (22 mg/mL) in 50 mM TRIS buffer (pH 8.0) containing 1 mM TCEP and 150 mM NaCl with 0.1 uL of reservoir solution consisting of 1.0M NaH2PO4/1.0MKH2PO4, 100mM Tris_HCl pH=7.5. This growth solution was equilibrated by sitting drop vapor diffusion against 80 uL reservoir solution. Prior to crystallization 100 nL droplets of 10 mM compound solutions in DMSO were applied to the wells of SwissCI 96-well plates (2-well) and subsequently dried in vacuum.
Crystal Properties
Matthews coefficientSolvent content
3.6266.04

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 81.613α = 90
b = 81.613β = 90
c = 134.378γ = 120
Symmetry
Space GroupP 32 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100PIXELDECTRIS PILATUS 6M2020-12-17MSINGLE 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
11.9544.7999.95120.6110.83841939.76
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)
11.952.020.667

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 REPLACEMENTTHROUGHOUT7NFV1.9544.791.3438403193199.950.18230.18070.211546.7994
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 Atoms2502
Nucleic Acid Atoms
Solvent Atoms270
Heterogen Atoms20

Software

Software
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XSCALEdata scaling
PHASERphasing