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Structural studies on the synchronization of catalytic centers in glutamate synthase: native enzyme
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1EA0
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 8 277 PEG4000, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Crystal Properties Matthews coefficient Solvent content 4.57 73.07
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 166.083 α = 90 b = 166.083 β = 90 c = 219.584 γ = 90
Symmetry Space Group P 43 21 2
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 2001-11-03 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ESRF BEAMLINE ID14-3 0.9 ESRF ID14-3
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) R Sym 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 2.8 62 99.4 0.12 0.12 3.8 5.7 76995 76995
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 2.8 2.94 96.6 0.512 0.512 1.7 4.6 10697
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 Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT 1EA0 2.8 129.1 73899 73899 1869 99.66 0.2376 0.23764 0.23638 0.2286 0.28677 RANDOM 35.074
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] 4.2 4.2 -8.39
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_3_deg 26.265 r_dihedral_angle_1_deg 9.278 r_scangle_it 3.61 r_scbond_it 2.296 r_angle_refined_deg 2.228 r_mcangle_it 1.341 r_mcbond_it 0.745 r_symmetry_vdw_refined 0.351 r_nbd_refined 0.328 r_xyhbond_nbd_refined 0.227
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_3_deg 26.265 r_dihedral_angle_1_deg 9.278 r_scangle_it 3.61 r_scbond_it 2.296 r_angle_refined_deg 2.228 r_mcangle_it 1.341 r_mcbond_it 0.745 r_symmetry_vdw_refined 0.351 r_nbd_refined 0.328 r_xyhbond_nbd_refined 0.227 r_chiral_restr 0.165 r_symmetry_hbond_refined 0.143 r_bond_refined_d 0.021 r_gen_planes_refined 0.007
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 11311 Nucleic Acid Atoms Solvent Atoms 38 Heterogen Atoms 46
Software Software Software Name Purpose MOSFLM data reduction SCALA data scaling AMoRE phasing REFMAC refinement CCP4 data scaling