3F9E

Crystal Structure of the S139A mutant of SARS-Coronovirus 3C-like Protease


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP62770.1M MES pH 6.0, 10% PEG 6000, 1mM DTT, 5% DMSO, vapor diffusion, hanging drop, temperature 277K
Crystal Properties
Matthews coefficientSolvent content
2.1342.28

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 34.27α = 90
b = 65.979β = 90
c = 128.189γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100IMAGE PLATERIGAKU RAXIS IV++2008-03-01MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODERIGAKU1.5418

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (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
12.51598.70.1353.6110488
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
2.52.5999.90.37823.791036

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (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 DIFFRACTIONTHROUGHOUT2.514.861048750698.740.2550.2520.308RANDOM36.162
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]
-0.89-2.793.69
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg33.881
r_dihedral_angle_3_deg16.017
r_dihedral_angle_4_deg9.415
r_dihedral_angle_1_deg5.418
r_angle_refined_deg0.933
r_scangle_it0.642
r_mcangle_it0.509
r_scbond_it0.38
r_nbtor_refined0.3
r_mcbond_it0.284
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg33.881
r_dihedral_angle_3_deg16.017
r_dihedral_angle_4_deg9.415
r_dihedral_angle_1_deg5.418
r_angle_refined_deg0.933
r_scangle_it0.642
r_mcangle_it0.509
r_scbond_it0.38
r_nbtor_refined0.3
r_mcbond_it0.284
r_nbd_refined0.176
r_symmetry_hbond_refined0.118
r_symmetry_vdw_refined0.114
r_xyhbond_nbd_refined0.11
r_chiral_restr0.064
r_bond_refined_d0.006
r_gen_planes_refined0.002
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2309
Nucleic Acid Atoms
Solvent Atoms54
Heterogen Atoms

Software

Software
Software NamePurpose
d*TREKdata scaling
REFMACrefinement
PDB_EXTRACTdata extraction