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Crystal Structures of the G81A Mutant of the Active Chimera of (S)-Mandelate Dehydrogenase and its Complex with Two of its Substrates
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 2A7N PDB ENTRY 2A7N
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 6.2 295 200mM MES,0.75% ammonium sulfate, 10% ethylene glycol, 20 uM FMN and 4M NaCl, pH 6.2, VAPOR DIFFUSION, HANGING DROP, temperature 295K
Crystal Properties Matthews coefficient Solvent content 2.56 52.02
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 99.36 α = 90 b = 99.36 β = 90 c = 87.55 γ = 90
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 2002-03-20 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON APS BEAMLINE 14-BM-C 0.9 APS 14-BM-C
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 40 95.5 0.043 28.1 4.1 56124 53598 19.2
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) 1.6 1.66 66.3 0.241 2.8 3730
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-Work (Depositor) R-Work (DCC) R-Free (Depositor) R-Free (DCC) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION refined directly THROUGHOUT PDB ENTRY 2A7N 1.6 27.4 56002 51143 2470 91.3 0.134 0.1325 0.171 0.1687 RANDOM 22.3
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 o_dihedral_angle_d 21.5 o_scangle_it 2.64 o_mcangle_it 1.84 o_scbond_it 1.74 o_angle_deg 1.2 o_mcbond_it 1.13 o_improper_angle_d 0.78 o_bond_d 0.006
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 2752 Nucleic Acid Atoms Solvent Atoms 284 Heterogen Atoms 43
Software Software Software Name Purpose HKL-2000 data collection CNS refinement HKL-2000 data reduction HKL-2000 data scaling