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CRYSTAL STRUCTURE OF THE 20S PROTEASOME FROM YEAST AT 2.4 ANGSTROMS RESOLUTION
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1PMA PDB ENTRY 1PMA
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 6.9 pH 6.9
Crystal Properties Matthews coefficient Solvent content 3.53 65.2
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 135.49 α = 90 b = 300.7 β = 112.89 c = 144.42 γ = 90
Symmetry Space Group P 1 21 1
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 90 IMAGE PLATE MARRESEARCH 1997-06-02 M
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON MPG/DESY, HAMBURG BEAMLINE BW6 MPG/DESY, HAMBURG BW6
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 1.9 50 93.6 0.081 2 2.9 778118 2
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) 1.97 93.6 0.487 2 1.8
Refinement Statistics Diffraction ID Structure Solution Method Starting model Resolution (High) Resolution (Low) Cut-off Sigma (F) 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 PDB ENTRY 1PMA 1.9 50 2 752101 37408 90.5 0.286 0.286 0.33 36.4
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] -4.4 4.5 13.9 -2.5
RMS Deviations Key Refinement Restraint Deviation x_dihedral_angle_d 23.1 x_scangle_it 6.7 x_mcangle_it 4.6 x_scbond_it 4.6 x_mcbond_it 3.2 x_angle_deg 1.8 x_improper_angle_d 1.34 x_bond_d 0.011 x_bond_d_na x_bond_d_prot
RMS Deviations Key Refinement Restraint Deviation x_dihedral_angle_d 23.1 x_scangle_it 6.7 x_mcangle_it 4.6 x_scbond_it 4.6 x_mcbond_it 3.2 x_angle_deg 1.8 x_improper_angle_d 1.34 x_bond_d 0.011 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 49676 Nucleic Acid Atoms Solvent Atoms 2928 Heterogen Atoms 20
Software Software Software Name Purpose X-PLOR model building X-PLOR refinement MOSFLM data reduction CCP4 data scaling ROTAVATA data scaling X-PLOR phasing