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B. subtilis glutamine synthetase structures reveal large active site conformational changes and basis for isoenzyme specific regulation: structure of apo form of GS
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 2BVC PDB ENTRY 2BVC
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 8 298 40 mg/mL protein, 40% MPD, 200 mM magnesium chloride/sulfate, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Crystal Properties Matthews coefficient Solvent content 3.03 59.43
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 109.99 α = 119.8 b = 138.38 β = 90.19 c = 138.74 γ = 93.85
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 2012-12-03 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ALS BEAMLINE 8.3.1 1 ALS 8.3.1
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (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 3.1 120 86 128448 110080
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation 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 THROUGHOUT PDB ENTRY 2BVC 3.1 84.25 110080 8288 85.7 0.217 0.217 0.217 0.267 0.2666 RANDOM 66.5
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] 17.9 -0.25 0.2 -9.63 -0.79 -8.26
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 22.9 c_scangle_it 2.52 c_mcangle_it 2.47 c_scbond_it 1.48 c_mcbond_it 1.37 c_angle_deg 1.3 c_improper_angle_d 0.85 c_bond_d 0.008
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 41981 Nucleic Acid Atoms Solvent Atoms 253 Heterogen Atoms 50
Software Software Software Name Purpose ADSC data collection MOLREP phasing CNS refinement MOSFLM data reduction SCALA data scaling