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Dihydrofolate Reductase (DHFR) of Aspergillus flavus in complex with a small molecule inhibitor
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 4KYA
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 EVAPORATION 293 0.1 M MES monohydrate pH 6.0, 2.4M Ammonium sulfate
Crystal Properties Matthews coefficient Solvent content 3.96 68.93
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 77.68 α = 90 b = 77.68 β = 90 c = 120.921 γ = 120
Symmetry Space Group P 31 2 1
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 2015-02-19 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE RIGAKU RU200 1.5418
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Sym I (Observed) Rrim I (All) Rpim 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 1.997 67.273 99.4 0.068 0.084 0.049 8 2.8 29063 29063
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) R-Sym I (Observed) Rrim I (All) Rpim I (All) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 2 2.11 98.4 0.293 0.293 0.366 0.215 1.8 2.7
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 4KYA 2 45.01 27566 1473 99.14 0.2162 0.2135 0.2134 0.2678 0.2671 RANDOM 30.665
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] 0.01 0.01 0.01 -0.04
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 34.856 r_dihedral_angle_3_deg 18.318 r_dihedral_angle_4_deg 16.205 r_dihedral_angle_1_deg 7.176 r_angle_refined_deg 1.766 r_chiral_restr 0.118 r_bond_refined_d 0.008 r_gen_planes_refined 0.008
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1857 Nucleic Acid Atoms Solvent Atoms 197 Heterogen Atoms 91
Software Software Software Name Purpose SCALA data scaling REFMAC refinement PDB_EXTRACT data extraction MOSFLM data reduction PHASER phasing