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CRYSTAL STRUCTURE OF A MONOMERIC FORM OF GENERAL PROTEASE INHIBITOR, ECOTIN IN ABSENCE OF A PROTEASE
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1ECY 1ECY with last ten residues deleted
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 8 298 PEG 4000, glycerol, Tris, Sodium Acetate, pH 8.0, VAPOR DIFFUSION, HANGING DROP at 298K
Crystal Properties Matthews coefficient Solvent content 2.77 55.67
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 97.235 α = 90 b = 97.235 β = 90 c = 37.233 γ = 90
Symmetry Space Group P 43 21 2
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 200 IMAGE PLATE MARRESEARCH mirrors 1999-06-15 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON SSRL BEAMLINE BL9-1 1.08 SSRL BL9-1
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 2 20 95.8 0.093 19 6 12036 11496 2 1 21.2
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1.98 2.02 99.9 0.472 0.472 4.7 6 835
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Cut-off Sigma (I) Cut-off Sigma (F) Number Reflections (All) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (Observed) R-Work (Depositor) R-Free (Depositor) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT 1ECY with last ten residues deleted 2 19.92 1 2 12036 11481 1174 91.4 0.248 0.248 0.267 RANDOM 42.7
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] -7.9 -7.9 15.81
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 26.2 c_scangle_it 2.81 c_mcangle_it 2.22 c_scbond_it 1.83 c_angle_deg 1.4 c_mcbond_it 1.31 c_improper_angle_d 0.85 c_bond_d 0.007 c_bond_d_na c_bond_d_prot
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 26.2 c_scangle_it 2.81 c_mcangle_it 2.22 c_scbond_it 1.83 c_angle_deg 1.4 c_mcbond_it 1.31 c_improper_angle_d 0.85 c_bond_d 0.007 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_na c_dihedral_angle_d_prot c_improper_angle_d_na c_improper_angle_d_prot
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1112 Nucleic Acid Atoms Solvent Atoms 55 Heterogen Atoms
Software Software Software Name Purpose MAR345 data collection SCALEPACK data scaling X-PLOR model building CNS refinement X-PLOR phasing