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STRUCTURAL DETERMINATION OF THE A50T:S279G:S280K:V281K:K282E:H283N VARIANT OF CITRATE SYNTHASE FROM E. COLI COMPLEXED WITH oxaloacetate
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1K3P
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 7.5 298 2% (V/V) PEG400, 2.0-2.3 M AMMONIUM SULFATE, 0.1 M NA HEPES, PH 7.5, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 298K
Crystal Properties Matthews coefficient Solvent content 4.34 71.65
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 165.152 α = 90 b = 165.152 β = 90 c = 158.841 γ = 120
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 315r VERTICAL FOCUSING MIRROR 2008-02-28 M SINGLE WAVELENGTH 2 1
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON SSRL BEAMLINE BL7-1 0.97 SSRL BL7-1
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 2.1 30 99.8 0.059 9.5 5.5 94093
Refinement Statistics Diffraction ID Structure Solution Method Starting model Resolution (High) Resolution (Low) 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 1K3P 2.1 30 94082 4556 99.8 0.182 0.182 0.1816 0.21 0.2107 RANDOM 41.18
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 c_scangle_it 1.85 c_mcangle_it 1.782 c_scbond_it 1.168 c_mcbond_it 0.978 c_bond_d c_bond_d_na c_bond_d_prot c_angle_d c_angle_d_na c_angle_d_prot
RMS Deviations Key Refinement Restraint Deviation c_scangle_it 1.85 c_mcangle_it 1.782 c_scbond_it 1.168 c_mcbond_it 0.978 c_bond_d c_bond_d_na c_bond_d_prot c_angle_d c_angle_d_na c_angle_d_prot c_angle_deg c_angle_deg_na c_angle_deg_prot c_dihedral_angle_d c_dihedral_angle_d_na c_dihedral_angle_d_prot c_improper_angle_d c_improper_angle_d_na c_improper_angle_d_prot
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 6730 Nucleic Acid Atoms Solvent Atoms 576 Heterogen Atoms 38
Software Software Software Name Purpose CNS refinement MOSFLM data reduction SCALA data scaling CNS phasing