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Crystal Structure of E. Coli RecA in a Compressed Helical Filament Form 2
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 2REB PDB Entry 2REB
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 7.5 295 PEG 550 MME, calcium chloride, hepes, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 295K
Crystal Properties Matthews coefficient Solvent content 3.1 60
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 105.854 α = 90 b = 105.854 β = 90 c = 73.496 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 CCD SBC-2 2003-07-30 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON APS BEAMLINE 19-ID APS 19-ID
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 34.65 99.8 0.079 36.3 11.9 36951 35211 16.7
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) 1.9 1.97 100 0.713 3.6
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Number Reflections (All) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (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 PDB Entry 2REB 1.9 34.65 36951 35211 3496 95.3 0.187 0.1868 0.222 0.2214 random 30.75
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] -0.86 2.16 -0.86 1.72
RMS Deviations Key Refinement Restraint Deviation x_torsion_deg 22.7 x_scangle_it 7.98 x_scbond_it 5.83 x_mcangle_it 4.26 x_mcbond_it 3.4 x_angle_deg 1.2 x_bond_d 0.004 x_torsion_impr_deg
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 2303 Nucleic Acid Atoms Solvent Atoms 277 Heterogen Atoms 3
Software Software Software Name Purpose CNS refinement HKL-2000 data reduction SCALEPACK data scaling AMoRE phasing