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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 55.29
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 97.461 α = 90 b = 97.461 β = 90 c = 263.958 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 2004-12-08 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON APS BEAMLINE 22-ID 0.97922 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 2.4 60.91 100 0.065 23 10.9 30034
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 2.4 2.53 100 0.28 6.3 11.1 4273
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 2.5 50 26588 1344 99.9 0.22664 0.22436 0.2222 0.26889 0.2674 RANDOM 68.98
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] 5.25 2.62 5.25 -7.87
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 38.687 r_dihedral_angle_3_deg 19.161 r_dihedral_angle_4_deg 18.821 r_dihedral_angle_1_deg 6.486 r_scangle_it 3.975 r_scbond_it 2.618 r_angle_refined_deg 2.116 r_mcangle_it 1.578 r_mcbond_it 0.946 r_symmetry_vdw_refined 0.338
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 38.687 r_dihedral_angle_3_deg 19.161 r_dihedral_angle_4_deg 18.821 r_dihedral_angle_1_deg 6.486 r_scangle_it 3.975 r_scbond_it 2.618 r_angle_refined_deg 2.116 r_mcangle_it 1.578 r_mcbond_it 0.946 r_symmetry_vdw_refined 0.338 r_nbtor_refined 0.326 r_nbd_refined 0.249 r_xyhbond_nbd_refined 0.169 r_chiral_restr 0.124 r_symmetry_hbond_refined 0.061 r_bond_refined_d 0.022 r_gen_planes_refined 0.007 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 4072 Nucleic Acid Atoms Solvent Atoms 63 Heterogen Atoms 84
Software Software Software Name Purpose SERGUI data collection REFMAC refinement MOSFLM data reduction SCALA data scaling