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An episulfide cation (thiiranium ring) trapped in the active site of HAV 3C proteinase inactivated by peptide-based ketone inhibitors
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 7.5 297 2.5% PEG 8000, 1.5% Glycerol, 10mM Tris-HCl pH7.5, VAPOR DIFFUSION, HANGING DROP, temperature 297K
Crystal Properties Matthews coefficient Solvent content 2.15 42.83
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 44.77 α = 90 b = 56.087 β = 90 c = 80.914 γ = 90
Symmetry Space Group P 21 21 21
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 210 2004-07-29 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ALS BEAMLINE 8.3.1 1.1159 ALS 8.3.1
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 1.4 46.08 75.6 0.068 38782 38520 -3 -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 1.4 1.45 79.8
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Resolution (High) Resolution (Low) Cut-off Sigma (F) 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 1.4 46.08 2 38520 30672 1666 79.15 0.17851 0.17799 0.17658 0.1816 0.20361 0.1798 RANDOM 20.362
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] 0.54 0.16 -0.71
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 34.583 r_dihedral_angle_4_deg 16.747 r_dihedral_angle_3_deg 11.457 r_scangle_it 9.952 r_scbond_it 7.07 r_dihedral_angle_1_deg 5.915 r_mcangle_it 5.076 r_mcbond_it 3.844 r_angle_refined_deg 1.152 r_nbtor_refined 0.306
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 34.583 r_dihedral_angle_4_deg 16.747 r_dihedral_angle_3_deg 11.457 r_scangle_it 9.952 r_scbond_it 7.07 r_dihedral_angle_1_deg 5.915 r_mcangle_it 5.076 r_mcbond_it 3.844 r_angle_refined_deg 1.152 r_nbtor_refined 0.306 r_nbd_refined 0.2 r_symmetry_vdw_refined 0.132 r_symmetry_hbond_refined 0.117 r_xyhbond_nbd_refined 0.087 r_chiral_restr 0.076 r_bond_refined_d 0.008 r_gen_planes_refined 0.004
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1667 Nucleic Acid Atoms Solvent Atoms 263 Heterogen Atoms 16
Software Software Software Name Purpose REFMAC refinement Blu-Ice data collection HKL-2000 data scaling MOLREP phasing