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Structure-activity relationship guides enantiomeric preference among potent inhibitors of B. anthracis dihydrofolate reductase
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 3FL8 PDB ENTRY 3FL8
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 5.8 298 16-22% PEG 3350, 0.2M CaCl2, 0.1M MES, +/- 3% glycerol , pH 5.8, VAPOR DIFFUSION, SITTING DROP, temperature 298K
Crystal Properties Matthews coefficient Solvent content 2.51 50.97
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 68.545 α = 90 b = 136.302 β = 90 c = 168.554 γ = 90
Symmetry Space Group P 21 21 21
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray CCD Bruker Platinum 135 2010-11-01 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE BRUKER AXS MICROSTAR
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 2.35 29.1 97 0.116 10.2 5.1 64869 18.3
Refinement Statistics Diffraction ID Structure Solution Method Starting model Resolution (High) Resolution (Low) Cut-off Sigma (F) 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) Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT PDB ENTRY 3FL8 2.35 28.09 1.49 64834 3263 97.4 0.2 0.197 0.1864 0.253 0.2396
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] 7.1076 -3.0115 -4.0961
RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 17.669 f_angle_d 1.106 f_chiral_restr 0.07 f_bond_d 0.008 f_plane_restr 0.005
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 11034 Nucleic Acid Atoms Solvent Atoms 1033 Heterogen Atoms 304
Software Software Software Name Purpose PHENIX refinement