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Crystal structure of SARS coronavirus main protease complexed with an alpha, beta-unsaturated ethyl ester inhibitor SG83
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 6 298 6%-8% PEG 6000, 0.1M MES, 3% 2-methyl-2,4-pentanediol (MPD), 3% DMSO, pH 6.0, VAPOR DIFFUSION, SITTING DROP, temperature 298K
Crystal Properties Matthews coefficient Solvent content 3.39 63.66
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 107.31 α = 90 b = 82.86 β = 104.69 c = 53.33 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 200 CCD RAYONIX MX-225 2010-08-06 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON BESSY BEAMLINE 14.2 0.9184 BESSY 14.2
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 1.99 32.68 94.9 30966 29410 -3
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 1.99 2.038 94.9
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Resolution (High) Resolution (Low) Number Reflections (All) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) 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 1.99 32.68 30966 29410 1556 99.36 0.19931 0.19931 0.19677 0.2063 0.24524 0.2481 RANDOM 29.933
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] -0.04 0.11 0.04 0.07
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 35.343 r_dihedral_angle_4_deg 13.907 r_dihedral_angle_3_deg 13.225 r_dihedral_angle_1_deg 6.635 r_scangle_it 3.485 r_scbond_it 2.27 r_angle_refined_deg 1.499 r_mcangle_it 1.451 r_mcbond_it 0.792 r_chiral_restr 0.105
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 35.343 r_dihedral_angle_4_deg 13.907 r_dihedral_angle_3_deg 13.225 r_dihedral_angle_1_deg 6.635 r_scangle_it 3.485 r_scbond_it 2.27 r_angle_refined_deg 1.499 r_mcangle_it 1.451 r_mcbond_it 0.792 r_chiral_restr 0.105 r_bond_refined_d 0.014 r_gen_planes_refined 0.007 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_other r_rigid_bond_restr r_sphericity_free r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 2371 Nucleic Acid Atoms Solvent Atoms 201 Heterogen Atoms 49
Software Software Software Name Purpose MAR345 data collection MOLREP phasing REFMAC refinement iMOSFLM data reduction SCALA data scaling