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X-ray crystal structur of Escherichia coli RNA polymerase sigma70 holoenzyme
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 300 0.1M HEPES-HCL (PH7), 0.2M CaACETATE, 15% PEG400
Crystal Properties Matthews coefficient Solvent content 3.24 62.05
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 187.308 α = 90 b = 205.901 β = 90 c = 309.185 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 100 CCD ADSC QUANTUM 210 2012-06-12 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON CHESS BEAMLINE A1 0.978 CHESS A1
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (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 3.6 30 96.8 10.1 4.5 123448
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 (DCC) Mean Isotropic B X-RAY DIFFRACTION FREE R-VALUE 3.7 29.978 1.36 123398 6179 96.77 0.1949 0.1914 0.197 0.2601 0.2612
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 f_dihedral_angle_d 18.088 f_angle_d 1.697 f_chiral_restr 0.07 f_bond_d 0.013 f_plane_restr 0.008
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 55733 Nucleic Acid Atoms Solvent Atoms Heterogen Atoms 8
Software Software Software Name Purpose PHENIX refinement HKL-2000 data reduction HKL-2000 data scaling Coot model building