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Crystal Structure of Eosinophil Cationic Protein in Complex with 2',5'-ADP at 2.0 A resolution Reveals the Details of the Ribonucleolytic Active site
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1QMT PDB ENTRY 1QMT
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 8 0.5 M SODIUM CHLORIDE, 10% 2-PROPANOL AND 0.1 M HEPES-NAOH PH 8.0.
Crystal Properties Matthews coefficient Solvent content 2.95 58.3
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 100.7 α = 90 b = 100.7 β = 90 c = 31.7 γ = 120
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 293 CCD ADSC CCD 2000-08-15 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON SRS BEAMLINE PX9.6 SRS PX9.6
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 40 99.4 0.078 14.7 4.8 12663 2 23.1
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 2 2.1 99.9 0.37 2.92
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (Observed) R-Work (Depositor) R-Free (Depositor) Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT PDB ENTRY 1QMT 2 32.95 12190 625 95.6 0.205 0.205 0.21 41.5
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] -1.13 0.11 -1.13 2.26
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 23.9 c_angle_deg 1.2 c_improper_angle_d 0.83 c_bond_d 0.006 c_bond_d_na c_bond_d_prot c_angle_d c_angle_d_na c_angle_d_prot c_angle_deg_na
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 23.9 c_angle_deg 1.2 c_improper_angle_d 0.83 c_bond_d 0.006 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 c_mcbond_it c_mcangle_it c_scbond_it c_scangle_it
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1101 Nucleic Acid Atoms Solvent Atoms 54 Heterogen Atoms 27
Software Software Software Name Purpose CNS refinement DENZO data reduction SCALEPACK data scaling AMoRE phasing