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Crystal Structure of a Xylanase at 1.56 Angstroem resolution
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 4HKL
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 5 293 0.1 M sodium citrate pH 5 and various ammonium sulfate concentrations
Crystal Properties Matthews coefficient Solvent content 2.15 43
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 105.233 α = 90 b = 35.886 β = 90 c = 48.343 γ = 90
Symmetry Space Group P 21 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 ADSC QUANTUM 315r Cryogenically cooled channel cut Si[111] crystal monochromator, a convex prefocussing mirror and a Kirkpatrick-Baez pair of focussing mirrors 2015-10-09 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON SOLEIL BEAMLINE PROXIMA 2 0.98010 SOLEIL PROXIMA 2
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) 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 1.56 35.08 99.2 0.099 0.998 13.91 7 26596 -3 -3 16.52
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 1.56 1.616 97.4 0.901 1.89 7.1
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Cut-off Sigma (F) 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 FREE R-VALUE 4HKL 1.56 33.965 1.36 26594 1338 99.02 0.1895 0.1871 0.1905 0.234 0.2381 0 24.35
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 f_dihedral_angle_d 12.581 f_angle_d 1.132 f_chiral_restr 0.041 f_bond_d 0.007 f_plane_restr 0.004
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1468 Nucleic Acid Atoms Solvent Atoms 166 Heterogen Atoms 21
Software Software Software Name Purpose PHENIX refinement XDS data reduction Aimless data scaling PHASER phasing