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Quadruple mutant (N51I+C59R+S108N+I164L) Plasmodium falciparum dihydrofolate reductase-thymidylate synthase (PfDHFR-TS) complexed with P65 and NADPH
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1J3K PDB ENTRY 1J3K
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 MICROBATCH 4.5 297 PEG4000, NH4OAc, pH 4.5, Microbatch, temperature 297K
Crystal Properties Matthews coefficient Solvent content 2.59 52.6
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 57.951 α = 90 b = 156.447 β = 90 c = 164.653 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 IMAGE PLATE RIGAKU RAXIS IV++ mirrors 2004-12-22 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE Cu FINE FOCUS 1.54
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge 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 2.38 56.71 95.8 0.055 6.9 1.73 60551 1 1 49.8
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 2.38 2.47 83.3 0.29 2 1.71 9685
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-Free (Depositor) R-Free (DCC) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION FOURIER SYNTHESIS THROUGHOUT PDB ENTRY 1J3K 2.38 54.66 60475 3072 99.08 0.2222 0.2189 0.2864 0.2787 RANDOM 48.8601
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] 2.54 -1.18 -1.36
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 39.074 r_dihedral_angle_3_deg 17.739 r_dihedral_angle_4_deg 15.623 r_dihedral_angle_1_deg 6.747 r_scangle_it 3.001 r_scbond_it 1.835 r_mcangle_it 1.601 r_angle_refined_deg 1.489 r_mcbond_it 0.863 r_chiral_restr 0.098
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 39.074 r_dihedral_angle_3_deg 17.739 r_dihedral_angle_4_deg 15.623 r_dihedral_angle_1_deg 6.747 r_scangle_it 3.001 r_scbond_it 1.835 r_mcangle_it 1.601 r_angle_refined_deg 1.489 r_mcbond_it 0.863 r_chiral_restr 0.098 r_bond_refined_d 0.014 r_gen_planes_refined 0.006
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 8867 Nucleic Acid Atoms Solvent Atoms 438 Heterogen Atoms 168
Software Software Software Name Purpose d*TREK data scaling d*TREK data reduction REFMAC refinement PDB_EXTRACT data extraction CrystalClear data collection CNS phasing