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X-ray structural analysis of SARS coronavirus 3CL proteinase in complex with designed anti-viral inhibitors
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1Q2W PDB ENTRY 1Q2W
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 6.5 298 PEG 20000, MPD, cacodylate, NaCl, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K, pH 6.50
Crystal Properties Matthews coefficient Solvent content 3.52 65
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 107.098 α = 90 b = 83.24 β = 104.409 c = 53.696 γ = 90
Symmetry Space Group C 1 2 1
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 100 CCD ADSC QUANTUM 4 2003-12-05 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON APS BEAMLINE 14-BM-C APS 14-BM-C
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) Net I Over Average Sigma (I) Redundancy Number Reflections (All) Number Reflections (Observed) Observed Criterion Sigma (F) Observed Criterion Sigma (I) B (Isotropic) From Wilson Plot 1 1.89 100 98.6 0.038 32.4 35975
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1.89 1.96 99.8 0.662 2.3
Refinement Statistics Diffraction ID Structure Solution Method Starting model Resolution (High) Resolution (Low) Number Reflections (All) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (Observed) R-Work (Depositor) R-Work (DCC) R-Free (Depositor) R-Free (DCC) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT PDB ENTRY 1Q2W 1.9 20 35978 35500 1758 98.7 0.255 0.255 0.2645 0.315 0.3278 RANDOM 50.95
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 Key Refinement Restraint Deviation c_angle_deg 2.01 c_bond_d 0.018 c_bond_d_na c_bond_d_prot c_angle_d c_angle_d_na c_angle_d_prot c_angle_deg_na c_angle_deg_prot c_dihedral_angle_d
RMS Deviations Key Refinement Restraint Deviation c_angle_deg 2.01 c_bond_d 0.018 c_bond_d_na c_bond_d_prot c_angle_d c_angle_d_na c_angle_d_prot c_angle_deg_na c_angle_deg_prot c_dihedral_angle_d 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_scangle_it
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 2387 Nucleic Acid Atoms Solvent Atoms 150 Heterogen Atoms 40
Software Software Software Name Purpose DENZO data reduction SCALEPACK data scaling CNS refinement PDB_EXTRACT data extraction HKL-2000 data reduction EPMR phasing