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Crystal structure of SARS coronavirus main peptidase at pH 6.0 in the space group P21
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 6 298 2% PEG 20000, 3% dimethyl sulfoxide, 1mM dithiothreitol, 0.1 M MES (pH 6.0), VAPOR DIFFUSION, HANGING DROP, temperature 298K
Crystal Properties Matthews coefficient Solvent content 2.46 50.01
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 52.389 α = 90 b = 96.191 β = 102.91 c = 67.911 γ = 90
Symmetry Space Group P 1 21 1
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray CCD ADSC QUANTUM 210 2004-11-17 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ALS BEAMLINE 8.3.1 1.116 ALS 8.3.1
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (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 1.82 50 96.4 56644
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 1.82 1.89 90.6
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Resolution (High) Resolution (Low) 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 THROUGHOUT 1.82 40 53740 2881 96.36 0.17228 0.16989 0.1694 0.21694 0.2151 RANDOM 30.963
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] 1.76 1.23 -0.71 -0.5
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 33.468 r_dihedral_angle_4_deg 18.033 r_dihedral_angle_3_deg 14.816 r_dihedral_angle_1_deg 6.65 r_scangle_it 3.944 r_scbond_it 2.783 r_angle_refined_deg 1.778 r_mcangle_it 1.728 r_mcbond_it 1.152 r_nbtor_refined 0.314
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 33.468 r_dihedral_angle_4_deg 18.033 r_dihedral_angle_3_deg 14.816 r_dihedral_angle_1_deg 6.65 r_scangle_it 3.944 r_scbond_it 2.783 r_angle_refined_deg 1.778 r_mcangle_it 1.728 r_mcbond_it 1.152 r_nbtor_refined 0.314 r_nbd_refined 0.217 r_symmetry_hbond_refined 0.217 r_symmetry_vdw_refined 0.192 r_xyhbond_nbd_refined 0.18 r_chiral_restr 0.146 r_bond_refined_d 0.019 r_gen_planes_refined 0.009 r_bond_other_d r_angle_other_deg r_gen_planes_other r_nbd_other r_nbtor_other r_xyhbond_nbd_other r_metal_ion_refined r_metal_ion_other r_symmetry_vdw_other r_symmetry_hbond_other r_symmetry_metal_ion_refined r_symmetry_metal_ion_other r_mcbond_other r_rigid_bond_restr r_sphericity_free r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 4660 Nucleic Acid Atoms Solvent Atoms 591 Heterogen Atoms 12
Software Software Software Name Purpose REFMAC refinement SCALEPACK data scaling MOLREP phasing