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RNA polymerase model placed by Molecular replacement into X-ray diffraction map of DNA-bound RNA Polymerase-Sigma 54 holoenzyme complex.
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 4IGC
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 8 291 8% PGA-LM, 300mM Ammonium Formate, 100mM Hepes
Crystal Properties Matthews coefficient Solvent content 4.58 73.16
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 255.544 α = 90 b = 255.544 β = 90 c = 189.392 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 100 PIXEL DECTRIS PILATUS 2M 2012-05-26 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON DIAMOND BEAMLINE I04-1 0.92 Diamond I04-1
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) R Sym I (Observed) Rpim I (All) CC (Half) 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 8.5 143.89 99.9 0.2 0.08 0.089 0.996 8.4 10 9102
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) Rpim I (All) CC (Half) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 8.5 9.51 99.9 0.64 0.668 0.6 3.8 9.4 2526
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-Work (DCC) R-Free (Depositor) R-Free (DCC) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT 4IGC 8.5 143.89 8653 436 99.9 0.47 0.47 0.477 0.47 0.4664 RANDOM 33.644
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] 15.84 15.84 15.84 -51.38
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 15410 Nucleic Acid Atoms Solvent Atoms Heterogen Atoms
Software Software Software Name Purpose Aimless data scaling PHASER phasing PDB_EXTRACT data extraction XDS data reduction REFMAC refinement