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Crystal structure of Mycobacterium Tuberculosis Glutamine Synthetase in complex with tri-substituted imidazole inhibitor (3-(2-tert-butyl- 5-(pyridin-4-yl)-1H-imidazol-4-yl)quinoline) 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, 35% (V/V) PEG400) AND PROTEIN SOLUTION (13 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 2.35 47.6
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 133.26 α = 90 b = 227.47 β = 90 c = 200.59 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 2008-03-12 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ESRF BEAMLINE ID14-4 ESRF ID14-4
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 2.15 19.95 90.9 0.09 12.4 3.8 149481 33.6
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 2.15 2.25 93.5 0.33 4.8 3.7
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 2.15 19.95 142000 7480 91.01 0.22584 0.22482 0.2229 0.24493 0.2436 RANDOM 35.419
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] 3.03 -3.55 0.52
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 35.712 r_dihedral_angle_3_deg 13.827 r_dihedral_angle_4_deg 13.591 r_dihedral_angle_1_deg 5.977 r_scangle_it 1.881 r_angle_refined_deg 1.223 r_scbond_it 1.111 r_mcangle_it 0.753 r_mcbond_it 0.387 r_chiral_restr 0.081
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 35.712 r_dihedral_angle_3_deg 13.827 r_dihedral_angle_4_deg 13.591 r_dihedral_angle_1_deg 5.977 r_scangle_it 1.881 r_angle_refined_deg 1.223 r_scbond_it 1.111 r_mcangle_it 0.753 r_mcbond_it 0.387 r_chiral_restr 0.081 r_bond_refined_d 0.011 r_gen_planes_refined 0.005 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_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 22572 Nucleic Acid Atoms Solvent Atoms 1410 Heterogen Atoms 294
Software Software Software Name Purpose REFMAC refinement XDS data reduction XSCALE data scaling REFMAC phasing