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Structure-Based Design of New Dihydrofolate Reductase Antibacterial Agents: 7-(Benzimidazol-1-yl)-2,4-diaminoquinazolines
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 7.2 298 PEG 4000, sodium acetate, pH 7.2, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Crystal Properties Matthews coefficient Solvent content 2.52 51.28
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 79.346 α = 90 b = 79.346 β = 90 c = 107.496 γ = 120
Symmetry Space Group P 61 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 IMAGE PLATE MAR scanner 345 mm plate M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE RIGAKU 1.5418
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (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 1.7 21.072 21377
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method 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 1.7 22.25 21377 1155 99.47 0.2032 0.2024 0.2006 0.218 0.2186 RANDOM 22.559
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] -0.03 -0.01 -0.03 0.04
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 34.361 r_dihedral_angle_4_deg 18.392 r_dihedral_angle_3_deg 12.199 r_dihedral_angle_1_deg 5.688 r_angle_refined_deg 1.585 r_scangle_it 1.178 r_scbond_it 0.789 r_mcangle_it 0.478 r_nbtor_refined 0.303 r_mcbond_it 0.301
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 34.361 r_dihedral_angle_4_deg 18.392 r_dihedral_angle_3_deg 12.199 r_dihedral_angle_1_deg 5.688 r_angle_refined_deg 1.585 r_scangle_it 1.178 r_scbond_it 0.789 r_mcangle_it 0.478 r_nbtor_refined 0.303 r_mcbond_it 0.301 r_symmetry_vdw_refined 0.19 r_nbd_refined 0.169 r_symmetry_hbond_refined 0.153 r_xyhbond_nbd_refined 0.083 r_chiral_restr 0.068 r_bond_refined_d 0.007 r_gen_planes_refined 0.003
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1272 Nucleic Acid Atoms Solvent Atoms 105 Heterogen Atoms 78
Software Software Software Name Purpose MOSFLM data reduction SCALEPACK data scaling PHASER phasing REFMAC refinement PDB_EXTRACT data extraction