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Structure of dipeptide epimerase from Bacteroides thetaiotaomicron complexed with L-Ala-D-Glu; nonproductive substrate binding.
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1TKK PDB entry 1TKK
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 7.5 293 25% PEG3350, 0.1M Hepes, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 293.0K
Crystal Properties Matthews coefficient Solvent content 2.83 56.51
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 141.432 α = 90 b = 100.079 β = 90.25 c = 60 γ = 90
Symmetry Space Group C 1 2 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 ADSC QUANTUM 4 2008-11-06 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON NSLS BEAMLINE X4A 0.97915 NSLS X4A
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 1.6 25 98.8 0.069 108564 108564 19.4
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 1TKK 1.6 24.83 108564 108564 5418 98.8 0.189 0.189 0.189 0.218 0.2194 RANDOM 23.2
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] 2.7 2.76 -4.57 1.87
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 23.4 c_scangle_it 2.63 c_scbond_it 1.82 c_mcangle_it 1.64 c_angle_deg 1.3 c_mcbond_it 1.07 c_improper_angle_d 0.82 c_bond_d 0.005
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 5224 Nucleic Acid Atoms Solvent Atoms 903 Heterogen Atoms 32
Software Software Software Name Purpose ADSC data collection BALBES phasing CNS refinement DENZO data reduction SCALEPACK data scaling