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THE STRUCTURE OF NATIVE PORCINE PANCREATIC ELASTASE AT ATOMIC RESOLUTION (1.1 A)
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1BTU
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 8 291 0.25 M NA2SO4 18 DEGREES CELSIUS, pH 8.00
Crystal Properties Matthews coefficient Solvent content 2.06 32.6
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 49.91 α = 90 b = 57.82 β = 90 c = 74.27 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 IMAGE PLATE MARRESEARCH 1999-03-15 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON EMBL/DESY, HAMBURG BEAMLINE X11 EMBL/DESY, HAMBURG X11
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 1.1 45.6 92.7 0.045 14.9 13.1 81820
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 1.1 1.14 60.4 0.35 2.02
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Number Reflections (All) 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 FREE R-VALUE 1BTU 1.1 45.6 77673 4088 88.2 0.1267 0.1199 0.1652 0.151 RANDOM
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]
Coordinate Error Structure Solution Method Refinement High Resolution Refinement Low Resolution 23 1762 2177
RMS Deviations Key Refinement Restraint Deviation s_approx_iso_adps 0.103 s_non_zero_chiral_vol 0.094 s_anti_bump_dis_restr 0.088 s_zero_chiral_vol 0.079 s_angle_d 0.033 s_from_restr_planes 0.0289 s_similar_adp_cmpnt 0.026 s_bond_d 0.016 s_rigid_bond_adp_cmpnt 0.005 s_similar_dist
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1822 Nucleic Acid Atoms Solvent Atoms 364 Heterogen Atoms 11
Software Software Software Name Purpose SHELXL-97 refinement DENZO data reduction SCALEPACK data scaling SHELXL-97 phasing