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Crystal structure of Mycobacterium Tuberculosis Glutamine Synthetase in complex with a purine analogue inhibitor and L-methionine-S- sulfoximine phosphate.
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 6.8 294 EQUAL VOLUMES OF MOTHER LIQUOR (0.1 M MES, PH 6.8, 0.2 M MAGNESIUM CHLORIDE, 40% (V/V) PEG400) AND PROTEIN SOLUTION (30 G/L IN 0.1 M TRIS-HCL, PH 7.5, 0.125 M SODIUM CHLORIDE, 0.004 M MAGNESIUM CHLORIDE, 4%(V/V) DMSO, 0.001 M INHIBITOR, 0.004 M MSOP), HANGING-DROP, VAPOR DIFFUSION, TEMPERATURE 294K.
Crystal Properties Matthews coefficient Solvent content 2.34 47.5
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 133.21 α = 90 b = 228.76 β = 90 c = 202.7 γ = 90
Symmetry Space Group C 2 2 21
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 CCD 2008-02-01 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ESRF BEAMLINE ID14-1 ESRF ID14-1
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 39.8 97.2 0.11 13.4 4 151747 31.2
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) 1 2.2 2.3 86.5 0.34 3.4 2.8
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 2.2 39.81 145335 7666 98.07 0.21186 0.21085 0.2116 0.23116 0.2312 RANDOM 27.424
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] 0.17 -1.81 1.64
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 34.897 r_dihedral_angle_4_deg 14.78 r_dihedral_angle_3_deg 13.746 r_dihedral_angle_1_deg 5.658 r_scangle_it 1.388 r_angle_refined_deg 1.119 r_scbond_it 0.825 r_mcangle_it 0.636 r_mcbond_it 0.362 r_nbtor_refined 0.304
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 34.897 r_dihedral_angle_4_deg 14.78 r_dihedral_angle_3_deg 13.746 r_dihedral_angle_1_deg 5.658 r_scangle_it 1.388 r_angle_refined_deg 1.119 r_scbond_it 0.825 r_mcangle_it 0.636 r_mcbond_it 0.362 r_nbtor_refined 0.304 r_symmetry_vdw_refined 0.211 r_nbd_refined 0.188 r_symmetry_hbond_refined 0.177 r_xyhbond_nbd_refined 0.107 r_chiral_restr 0.075 r_metal_ion_refined 0.051 r_bond_refined_d 0.009 r_gen_planes_refined 0.003 r_bond_other_d r_angle_other_deg r_gen_planes_other r_nbd_other r_nbtor_other r_xyhbond_nbd_other r_metal_ion_other r_symmetry_vdw_other r_symmetry_hbond_other r_symmetry_metal_ion_refined r_symmetry_metal_ion_other r_mcbond_other r_mcangle_other r_scbond_other r_scangle_other r_long_range_B_refined r_long_range_B_other r_rigid_bond_restr r_sphericity_free r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 22626 Nucleic Acid Atoms Solvent Atoms 1649 Heterogen Atoms 408
Software Software Software Name Purpose REFMAC refinement XDS data reduction XSCALE data scaling REFMAC phasing