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Crystal Structure of Aspartate Semialdehyde Dehydrogenase from Haemophilus influenzae as a Tetrahedral Hemithioacetal Reaction Intermediate at 2.0 A
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1NWC
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 8.5 273 20-24% PEG 3350, 0.2 M Ammonium Acetate, 0.1 M Tris-HCl, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 273K
Crystal Properties Matthews coefficient Solvent content 2.1 41.08
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 54.563 α = 90 b = 111.041 β = 90 c = 113.711 γ = 90
Symmetry Space Group P 21 21 21
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 298 CCD ADSC QUANTUM 4 2001-09-01 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON APS BEAMLINE 14-BM-C 1.000 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 2 99 97.5 0.062 19.83 9.4 40026 39040 2 11.6
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) 2 2.07 76.7 0.294 5.1 3591
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 (All) 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 1NWC 2 29.58 40026 39040 3919 82.2 0.226 0.202 0.202 0.2064 0.262 0.2605 RANDOM 20.3
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] 3.71 0.79 -4.49
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 24.1 c_improper_angle_d 1.73 c_angle_deg 1.7 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 24.1 c_improper_angle_d 1.73 c_angle_deg 1.7 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 5513 Nucleic Acid Atoms Solvent Atoms 335 Heterogen Atoms
Software Software Software Name Purpose CNS refinement HKL-2000 data reduction SCALEPACK data scaling CNS phasing