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Crystal structure of small protein crambin at 0.48 A resolution
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1EJG PDB entry 1EJG
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 7 293 60% ethanol in water, pH 7, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 22.329 α = 90 b = 18.471 β = 90.55 c = 40.769 γ = 90
Symmetry Space Group P 1 21 1
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 MAR CCD 165 mm 2001-07-05 M SINGLE WAVELENGTH 2 2 x-ray 100 CCD MAR CCD 165 mm 2002-02-25 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON PETRA II, DESY BEAMLINE PETRA1 0.5498 PETRA II, DESY PETRA1 2 SYNCHROTRON PETRA II, DESY BEAMLINE PETRA1 0.5636 PETRA II, DESY PETRA1
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 0.48 20 97 0.075 9.7 3.7 156860 156860 2.14
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 0.48 0.49 1.5
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 (Observed) R-Work (Depositor) R-Work (DCC) R-Free (Depositor) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION ISOMORPHOUS TO PDB ENTRY 1EJG RFREE INITIALLY, FINAL STAGES NONE PDB entry 1EJG 0.48 20 156860 156860 97 0.127 0.127 0.1314 random 4.12
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]
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 341 Nucleic Acid Atoms Solvent Atoms 98 Heterogen Atoms 12
Software Software Software Name Purpose MAR345 data collection MOPRO refinement DENZO data reduction SCALEPACK data scaling SCALA data scaling