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Porcine pancreatic elastase complexed with N-acetyl-NPI and Ala-Ala at pH 5.0
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 3EST
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 5 294 25MM SODIUM SULPHATE, 25MM SODIUM ACETATE (PH 5.0), 25 MG/ML PPE AND 17.5 MG/ML AcNPI, AND THEN SOAKED WITH ALA-ALA (2 MG) IN 250MM SODIUM ACETATE (PH 5.0) (5 MICROLITRES) FOR 30 MIN, VAPOR DIFFUSION, HANGING DROP, temperature 294K
Crystal Properties Matthews coefficient Solvent content 2.04 39.85
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 50.507 α = 90 b = 57.665 β = 90 c = 73.872 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 127 CCD MARRESEARCH mirrors 2005-05-02 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON SLS BEAMLINE X06SA 0.98 SLS X06SA
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 1.8 19.6 99.5 0.086 11.1 3.2 20470 14.9
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 1.8 1.9 100 0.46 2.4 3.3 2950
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model 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 3EST 1.8 19.6 20470 20439 1054 99.19 0.173 0.173 0.171 0.1717 0.212 0.2126 RANDOM 17.773
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] 0.72 -1.35 0.62
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 35.069 r_dihedral_angle_4_deg 22.821 r_dihedral_angle_3_deg 13.036 r_scangle_it 6.487 r_dihedral_angle_1_deg 6.118 r_scbond_it 5.56 r_mcangle_it 3.603 r_mcbond_it 2.662 r_angle_refined_deg 1.662 r_nbtor_refined 0.309
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 35.069 r_dihedral_angle_4_deg 22.821 r_dihedral_angle_3_deg 13.036 r_scangle_it 6.487 r_dihedral_angle_1_deg 6.118 r_scbond_it 5.56 r_mcangle_it 3.603 r_mcbond_it 2.662 r_angle_refined_deg 1.662 r_nbtor_refined 0.309 r_symmetry_vdw_refined 0.283 r_nbd_refined 0.207 r_symmetry_hbond_refined 0.182 r_xyhbond_nbd_refined 0.157 r_chiral_restr 0.13 r_metal_ion_refined 0.069 r_bond_refined_d 0.019 r_gen_planes_refined 0.008
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1810 Nucleic Acid Atoms Solvent Atoms 120 Heterogen Atoms 12
Software Software Software Name Purpose DENZO data reduction SCALEPACK data scaling REFMAC refinement PDB_EXTRACT data extraction MOSFLM data reduction CCP4 data scaling