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STRUCTURE OF RIBONUCLEASE A AT 2.0 ANGSTROMS FROM MONOCLINIC CRYSTALS
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 3RN3 PDB ENTRY 3RN3
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 5.5 PROTEIN WAS CRYSTALLIZED FROM 20 MM SODIUM CITRATE BUFFER PH 5.5 AND 20 % PEG 4000.
Crystal Properties Matthews coefficient Solvent content 2.2 48
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 101.84 α = 90 b = 33.43 β = 90.02 c = 73.67 γ = 90
Symmetry Space Group C 1 2 1
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 293 IMAGE PLATE MARRESEARCH 1995-07-10 M
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 Sym 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 30 89.6 0.044 18.1 2.5 15331 13.1
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 2 2.1 79.5 0.122 10.4 1.9
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) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT PDB ENTRY 3RN3 2 8 15149 745 89.8 0.201 0.201 0.285 RANDOM 21
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]
RMS Deviations Key Refinement Restraint Deviation x_dihedral_angle_d 25.3 x_scangle_it 5.85 x_scbond_it 3.82 x_mcangle_it 3.23 x_mcbond_it 2.07 x_angle_deg 1.7 x_improper_angle_d 1.45 x_bond_d 0.012 x_bond_d_na x_bond_d_prot
RMS Deviations Key Refinement Restraint Deviation x_dihedral_angle_d 25.3 x_scangle_it 5.85 x_scbond_it 3.82 x_mcangle_it 3.23 x_mcbond_it 2.07 x_angle_deg 1.7 x_improper_angle_d 1.45 x_bond_d 0.012 x_bond_d_na x_bond_d_prot x_angle_d x_angle_d_na x_angle_d_prot x_angle_deg_na x_angle_deg_prot x_dihedral_angle_d_na x_dihedral_angle_d_prot x_improper_angle_d_na x_improper_angle_d_prot
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1894 Nucleic Acid Atoms Solvent Atoms 83 Heterogen Atoms
Software Software Software Name Purpose DENZO data reduction SCALEPACK data scaling X-PLOR model building X-PLOR refinement X-PLOR phasing