2ALV

X-ray structural analysis of SARS coronavirus 3CL proteinase in complex with designed anti-viral inhibitors


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
16.5298PEG 20000, MPD, cacodylate, NaCl, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K, pH 6.50
Crystal Properties
Matthew coefficientSolvent content
3.5265

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 107.098α = 90
b = 83.24β = 104.409
c = 53.696γ = 90
Symmetry
Space GroupC 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 42003-12-05MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONAPS BEAMLINE 14-BM-CAPS14-BM-C

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
11.8910098.60.03832.435975
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)
1.891.9699.80.6622.3

Refinement

Statistics
Diffraction IDStructure Solution MethodStarting modelResolution (High)Resolution (Low)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTPDB ENTRY 1Q2W1.9203597835500175898.70.2550.2550.315RANDOM50.95
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]
4.093-9.098-3.822-0.271
RMS Deviations
KeyRefinement Restraint Deviation
c_angle_deg2.01
c_bond_d0.018
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_scangle_it
c_angle_deg_na
c_angle_deg_prot
c_bond_d_na
RMS Deviations
KeyRefinement Restraint Deviation
c_angle_deg2.01
c_bond_d0.018
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_scangle_it
c_angle_deg_na
c_angle_deg_prot
c_bond_d_na
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d
c_improper_angle_d_na
c_improper_angle_d_prot
c_mcbond_it
c_mcangle_it
c_scbond_it
c_dihedral_angle_d
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2387
Nucleic Acid Atoms
Solvent Atoms150
Heterogen Atoms40

Software

Software
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
CNSrefinement
PDB_EXTRACTdata extraction
HKL-2000data reduction
EPMRphasing