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Structural Studies of Pterin-Based Inhibitors of Dihydropteroate Synthase
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1TX0 PDB entry 1TX0
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 9 291 LITHIUM SULFATE, propane, Bis-Tris pH 9, VAPOR DIFFUSION, HANGING DROP, temperature 291K
Crystal Properties Matthews coefficient Solvent content 2.75 55.34
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 97.544 α = 90 b = 97.544 β = 90 c = 263.811 γ = 120
Symmetry Space Group P 62 2 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 MARRESEARCH 2004-02-16 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON APS BEAMLINE 22-ID 1.0 APS 22-ID
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (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 2.32 47.96 92.2 0.057 40 8 30565 30565
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 2.32 2.4 57.6 0.206 4.7 5.9 1844
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 1TX0 2.32 47.96 30526 1539 92.23 0.2143 0.21184 0.2101 0.26287 0.2621 RANDOM 55.437
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] 2.43 1.22 2.43 -3.65
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 33.581 r_dihedral_angle_4_deg 19.536 r_dihedral_angle_3_deg 17.774 r_dihedral_angle_1_deg 5.99 r_scangle_it 4.266 r_scbond_it 2.634 r_angle_refined_deg 1.862 r_mcangle_it 1.741 r_mcbond_it 1.011 r_nbtor_refined 0.306
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 33.581 r_dihedral_angle_4_deg 19.536 r_dihedral_angle_3_deg 17.774 r_dihedral_angle_1_deg 5.99 r_scangle_it 4.266 r_scbond_it 2.634 r_angle_refined_deg 1.862 r_mcangle_it 1.741 r_mcbond_it 1.011 r_nbtor_refined 0.306 r_symmetry_vdw_refined 0.289 r_nbd_refined 0.22 r_xyhbond_nbd_refined 0.145 r_chiral_restr 0.112 r_symmetry_hbond_refined 0.089 r_bond_refined_d 0.019 r_gen_planes_refined 0.006 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_refined 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_rigid_bond_restr r_sphericity_free r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 4025 Nucleic Acid Atoms Solvent Atoms 82 Heterogen Atoms 68
Software Software Software Name Purpose SERGUI data collection REFMAC refinement HKL-2000 data reduction HKL-2000 data scaling