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Crystal structure of novel glutamine synthase homolog
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 3QAJ PDB entry 3qaj
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 7 293 0.2 M calcium acetate, 0.1 M HEPES, 3-6% w/v polyethylene glycol monomethylether 550, pH 7.0, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Crystal Properties Matthews coefficient Solvent content 2.66 53.7
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 140.01 α = 90 b = 140.01 β = 90 c = 45.03 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 IMAGE PLATE RIGAKU RAXIS IV++ 2011-12-16 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE RIGAKU MICROMAX-007 1.5418
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 2.5 20 99.8 0.096 9.9 8.3 17750
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 3qaj 2.5 20 16568 887 98.13 0.20905 0.20463 0.2043 0.2923 0.2911 RANDOM 60.559
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] -1.89 -0.94 -1.89 2.83
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 35.101 r_dihedral_angle_4_deg 20.238 r_dihedral_angle_3_deg 19.514 r_dihedral_angle_1_deg 7.832 r_angle_refined_deg 1.972 r_chiral_restr 0.124 r_bond_refined_d 0.016 r_gen_planes_refined 0.011 r_bond_other_d r_angle_other_deg
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 35.101 r_dihedral_angle_4_deg 20.238 r_dihedral_angle_3_deg 19.514 r_dihedral_angle_1_deg 7.832 r_angle_refined_deg 1.972 r_chiral_restr 0.124 r_bond_refined_d 0.016 r_gen_planes_refined 0.011 r_bond_other_d r_angle_other_deg r_gen_planes_other r_nbd_refined r_nbd_other r_nbtor_refined r_nbtor_other r_xyhbond_nbd_refined r_xyhbond_nbd_other r_metal_ion_refined r_metal_ion_other r_symmetry_vdw_refined r_symmetry_vdw_other r_symmetry_hbond_refined r_symmetry_hbond_other r_symmetry_metal_ion_refined r_symmetry_metal_ion_other r_mcbond_it r_mcbond_other r_mcangle_it r_scbond_it r_scangle_it r_rigid_bond_restr r_sphericity_free r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 3228 Nucleic Acid Atoms Solvent Atoms 69 Heterogen Atoms 12
Software Software Software Name Purpose CrystalClear data collection PHASER phasing REFMAC refinement CrystalClear data reduction CrystalClear data scaling