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Quadruple mutant (N51I+C59R+S108N+I164L) plasmodium falciparum dihydrofolate reductase-thymidylate synthase (PfDHFR-TS) complexed with P218 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 PEG 4000, NH4OAc, pH 4.5, Microbatch, temperature 297K
Crystal Properties Matthews coefficient Solvent content 2.61 52.95
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 58.499 α = 90 b = 156.198 β = 90 c = 164.586 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 Nonius Kappa CCD Mirrors 2008-09-01 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 2.4 19.9 96.5 0.047 21 57640 57735 1 45.8
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 2.4 2.49 86.7 0.248 5107
Refinement Statistics Diffraction ID Structure Solution Method Starting model Resolution (High) Resolution (Low) Cut-off Sigma (F) Number Reflections (All) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Work (Depositor) R-Work (DCC) R-Free (Depositor) R-Free (DCC) Mean Isotropic B X-RAY DIFFRACTION FOURIER SYNTHESIS PDB ENTRY 1J3K 2.4 19.9 1 59702 57640 2903 96.5 0.205 0.2048 0.239 0.2392 49.2
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] 13.88 -3.28 -10.6
RMS Deviations Key Refinement Restraint Deviation c_scangle_it 2.824 c_mcangle_it 2.665 c_scbond_it 1.878 c_mcbond_it 1.527 c_angle_d 1.34 c_bond_d 0.007
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 9068 Nucleic Acid Atoms Solvent Atoms 441 Heterogen Atoms 158
Software Software Software Name Purpose SCALEPACK data scaling CNS refinement PDB_EXTRACT data extraction HKL-2000 data collection DENZO data reduction