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Structure of Escherichia coli Threonine Aldolase in Unliganded Form
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1LW5 PDB Entry 1LW5
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 7.5 298 603 uM of enzyme, 0.2 M magnesium chloride hexahydrate, 0.1 M HEPES, 30% PEG 400, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Crystal Properties Matthews coefficient Solvent content 2.33 47.13
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 76.62 α = 90 b = 100.79 β = 90 c = 176.08 γ = 90
Symmetry Space Group C 2 2 21
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 IV++ Mirrors 2009-07-23 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE RIGAKU MICROMAX-007 1.5418
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 2.1 38.2 91.8 0.111 15.9 9.3 32123 32123 27.9
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 2.1 2.28 88.6 0.311 8.2 12.9
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 (DCC) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT PDB Entry 1LW5 2.1 29.35 30203 30258 1584 86.5 0.209 0.209 0.2255 0.279 0.2889 RANDOM 28.8
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] -1.29 -2.23 3.52
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 21.7 c_angle_deg 1.3 c_improper_angle_d 1.03 c_bond_d 0.012 c_bond_d_na c_bond_d_prot c_angle_d c_angle_d_na c_angle_d_prot c_angle_deg_na
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 21.7 c_angle_deg 1.3 c_improper_angle_d 1.03 c_bond_d 0.012 c_bond_d_na c_bond_d_prot c_angle_d c_angle_d_na c_angle_d_prot c_angle_deg_na c_angle_deg_prot c_dihedral_angle_d_na c_dihedral_angle_d_prot c_improper_angle_d_na c_improper_angle_d_prot c_mcbond_it c_mcangle_it c_scbond_it c_scangle_it
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 5096 Nucleic Acid Atoms Solvent Atoms 279 Heterogen Atoms 63
Software Software Software Name Purpose CNS refinement CrystalClear data collection d*TREK data reduction d*TREK data scaling CaspR phasing