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Structure of the N-terminal exonuclease domain of the epsilon subunit of E.coli DNA polymerase III at pH 5.8
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 5.8 277 PEG 8000, magnesium sulfate, cacodylate, pH 5.8, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Crystal Properties Matthews coefficient Solvent content 2.47 50.29
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 60.8 α = 90 b = 60.8 β = 90 c = 111.1 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 100 CCD MARRESEARCH 2001-04-05 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ESRF BEAMLINE BM30A ESRF BM30A
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 1.7 50 94.9 0.049 9 18.8 22532
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) 1.7 1.76 78 0.152 1813
Refinement Statistics Diffraction ID Structure Solution Method Resolution (High) Resolution (Low) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Work (Depositor) R-Work (DCC) R-Free (Depositor) R-Free (DCC) Mean Isotropic B X-RAY DIFFRACTION 1.7 50 22457 1179 94.9 0.201 0.2135 0.234 0.2502
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 c_angle_deg 1.339 c_bond_d 0.006
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1360 Nucleic Acid Atoms Solvent Atoms 225 Heterogen Atoms 56
Software Software Software Name Purpose DENZO data reduction SCALEPACK data scaling CCP4 model building CNS refinement CCP4 phasing