4HI3

Crystal structure of dimeric R298A mutant of SARS coronavirus main protease


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP829530% PEG 300, 5% PEG 1000, 0.1 M Tris, pH 8.0, VAPOR DIFFUSION, SITTING DROP, temperature 295K
Crystal Properties
Matthews coefficientSolvent content
2.4750.17

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 55.042α = 71.29
b = 59.444β = 73.4
c = 59.822γ = 72.31
Symmetry
Space GroupP 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 315r2011-03-08MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONNSRRC BEAMLINE BL13B10.976NSRRCBL13B1

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (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
12.093094.73771535837
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.092.1694.8

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (All)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUT1uk42.09303771535837187894.690.192410.192410.189870.24138RANDOM45.236
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]
-2.011.8-1.841.46-1.221.29
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg36.832
r_dihedral_angle_4_deg18.434
r_dihedral_angle_3_deg16.755
r_dihedral_angle_1_deg6.222
r_angle_refined_deg1.33
r_chiral_restr0.089
r_bond_refined_d0.009
r_gen_planes_refined0.006
r_bond_other_d
r_angle_other_deg
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg36.832
r_dihedral_angle_4_deg18.434
r_dihedral_angle_3_deg16.755
r_dihedral_angle_1_deg6.222
r_angle_refined_deg1.33
r_chiral_restr0.089
r_bond_refined_d0.009
r_gen_planes_refined0.006
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_it
r_mcbond_other
r_mcangle_it
r_scbond_it
r_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms4646
Nucleic Acid Atoms
Solvent Atoms266
Heterogen Atoms

Software

Software
Software NamePurpose
HKL-2000data collection
PHASERphasing
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling