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Porcine pancreatic elastase complexed with beta-casomorphin-7 and Arg-Phe 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 BCM7, AND THEN SOAKED WITH ARG-PHE (2MG) IN 250MM SODIUM ACETATE (PH 5.0) (5 MICROLITRES) FOR 45 MIN, VAPOR DIFFUSION, HANGING DROP, temperature 294K
Crystal Properties Matthews coefficient Solvent content 2.02 39.17
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 50.195 α = 90 b = 57.883 β = 90 c = 74.605 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 IMAGE PLATE RIGAKU RAXIS IV OSMIC mirrors 2005-06-30 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE RIGAKU MICROMAX-007 1.54180
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 1.7 19.6 99.9 0.039 22.9 3.4 24541 15.98
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 1.7 1.79 100 0.137 7.7 3.3 3510
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-Free (Depositor) R-Free (DCC) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT 3EST 1.7 19.59 24541 24499 1252 99.83 0.17 0.17 0.168 0.205 0.2188 RANDOM 20.974
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] 0.28 -0.08 -0.2
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 35.553 r_dihedral_angle_4_deg 25.58 r_dihedral_angle_3_deg 11.537 r_dihedral_angle_1_deg 5.749 r_scangle_it 5.505 r_scbond_it 4.468 r_mcangle_it 3.236 r_mcbond_it 2.445 r_angle_refined_deg 1.593 r_nbtor_refined 0.311
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 35.553 r_dihedral_angle_4_deg 25.58 r_dihedral_angle_3_deg 11.537 r_dihedral_angle_1_deg 5.749 r_scangle_it 5.505 r_scbond_it 4.468 r_mcangle_it 3.236 r_mcbond_it 2.445 r_angle_refined_deg 1.593 r_nbtor_refined 0.311 r_symmetry_vdw_refined 0.249 r_symmetry_hbond_refined 0.218 r_nbd_refined 0.209 r_chiral_restr 0.13 r_xyhbond_nbd_refined 0.126 r_metal_ion_refined 0.122 r_bond_refined_d 0.017 r_gen_planes_refined 0.007
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1810 Nucleic Acid Atoms Solvent Atoms 128 Heterogen Atoms 13
Software Software Software Name Purpose DENZO data reduction SCALEPACK data scaling REFMAC refinement PDB_EXTRACT data extraction MOSFLM data reduction CCP4 data scaling