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Crystal Structure of staphyloccocal nuclease VIAGAN/E75A variant at cryogenic temperature
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1EZ6 1EZ6 in which all waters were removed, all B's set to 20.00 A^2, and E75A
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 6 277 37% MPD, 25 mM potassium phosphate, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Crystal Properties Matthews coefficient Solvent content 2.23 44.82
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 48.564 α = 90 b = 48.564 β = 90 c = 63.221 γ = 90
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 100 IMAGE PLATE RIGAKU RAXIS IIC 2004-10-20 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE RIGAKU RU200 1.5418
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 2.01 50 99.9 0.037 25.7 5.1 9870 30.8
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) 2.01 2.08 0.998 0.144 13.1
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-Factor (All) 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 THROUGHOUT 1EZ6 in which all waters were removed, all B's set to 20.00 A^2, and E75A 2.01 48.6 9845 9743 1013 99 0.232 0.232 0.218 0.218 0.244 0.2429 random 32.436
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] -4.216 -4.216 8.432
RMS Deviations Key Refinement Restraint Deviation c_scangle_it 3.359 c_mcangle_it 2.303 c_scbond_it 2.177 c_mcbond_it 1.457
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 994 Nucleic Acid Atoms Solvent Atoms 72 Heterogen Atoms 5
Software Software Software Name Purpose CNS refinement PDB_EXTRACT data extraction CrystalClear data collection DENZO data reduction SCALEPACK data scaling CNS phasing