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CRYSTAL STRUCTURE OF A SIGMA70 SUBUNIT FRAGMENT FROM ESCHERICHIA COLI RNA POLYMERASE
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 5.1 PROTEIN CRYSTALLIZED FROM 50 MM SODIUM ACETATE, 0.5-0.7 M LI2SO4, 5-7% (W/V) PEG 8000, 5 MM DTT, PH 5.1; TRANSFERRED IN EIGHT STEPS TO 50 MM SODIUM ACETATE, 0.5 M LI2SO4, 15% (W/V) PEG 8000, 17.5% GLYCEROL AND 10MM DTT, PH 5.1
Crystal Properties Matthews coefficient Solvent content 2.7 53
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 79.229 α = 90 b = 79.229 β = 90 c = 134.06 γ = 90
Symmetry Space Group P 41 21 2
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 103 IMAGE PLATE FUJI COLLIMATOR 1995-08-25 M
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON NSLS BEAMLINE X4A 0.9663, 0.9879 NSLS X4A
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 2.6 15 94.9 0.063 15.1 5.84 13160 48.8
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) 1 2.6 2.66 78.3 0.27 2.5 4.63
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method 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-Work (DCC) R-Free (Depositor) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MULTIWAVELENGTH ANOMALOUS DISPERSION THROUGHOUT 2.6 6 2 11376 1170 90.9 0.218 0.218 0.2225 0.315 RANDOM 49.8
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] -5.1484 -5.1484 10.2967
RMS Deviations Key Refinement Restraint Deviation x_dihedral_angle_d 21.6 x_scangle_it 7.95 x_mcangle_it 5.33 x_scbond_it 5.31 x_mcbond_it 3.41 x_angle_deg 1.7 x_improper_angle_d 1.46 x_bond_d 0.014 x_bond_d_na x_bond_d_prot
RMS Deviations Key Refinement Restraint Deviation x_dihedral_angle_d 21.6 x_scangle_it 7.95 x_mcangle_it 5.33 x_scbond_it 5.31 x_mcbond_it 3.41 x_angle_deg 1.7 x_improper_angle_d 1.46 x_bond_d 0.014 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 2482 Nucleic Acid Atoms Solvent Atoms 111 Heterogen Atoms
Software Software Software Name Purpose MLPHARE phasing X-PLOR refinement DENZO data reduction SCALEPACK data scaling