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Structure of Escherichia coli Threonine Aldolase in Complex with Allo-Thr
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 7.5 298 480 uM of enzyme, 28 mM L-threonine, 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 2.32 47.01
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 76.4 α = 90 b = 100.89 β = 90 c = 176 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++ 2009-07-24 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 29.8 92.9 0.109 9.8 4.6 37247 37247 21.8
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 2.18 94.9 0.305 4.6 4.6
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 29.05 37208 37206 1881 92.8 0.182 0.182 0.1826 0.243 0.2442 RANDOM 22.9
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] -0.4 -1.12 1.52
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 22.6 c_improper_angle_d 2.04 c_angle_deg 1.6 c_bond_d 0.015 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 22.6 c_improper_angle_d 2.04 c_angle_deg 1.6 c_bond_d 0.015 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 466 Heterogen Atoms 100
Software Software Software Name Purpose CNS refinement CrystalClear data collection d*TREK data reduction d*TREK data scaling CaspR phasing