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Crystal Structure of Dihydrofolate Reductase from Mycobacterium tuberculosis bound to NADP and SDDC Inhibitor SDDC-22
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 289 MCSG1 condition H2: 0.2 M potassium iodide, 20% PEG3350
Crystal Properties Matthews coefficient Solvent content 2 38.57
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 29.92 α = 90 b = 68.55 β = 90 c = 77.45 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 100 CCD Saturn 944+ 2015-04-15 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE FR-E+ Superbright 1.5418
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) Rrim I (All) 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 1.65 50 99.1 0.067 0.069 23.62 19706 -3 21.69
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) Rrim I (All) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1.65 1.69 92.2 0.326 0.386 3.83
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method 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 FREE R-VALUE 1.65 38.725 1.34 19703 986 99.09 0.1792 0.1778 0.1783 0.2067 0.2075 18.397
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]
RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 20.454 f_angle_d 1.26 f_chiral_restr 0.056 f_bond_d 0.006 f_plane_restr 0.005
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1254 Nucleic Acid Atoms Solvent Atoms 146 Heterogen Atoms 88
Software Software Software Name Purpose XDS data reduction XSCALE data scaling PHENIX refinement PDB_EXTRACT data extraction PHENIX model building Coot model building PHENIX phasing