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CANDIDA ALBICANS DIHYDROFOLATE REDUCTASE COMPLEXED WITH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE (NADPH) AND 7-[2-methoxy-1-(methoxymethyl)ethyl]-7H-pyrrolo[3,2-f] quinazoline-1,3-diamine (GW557)
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1AI9 CANDIDA ALBICANS DHFR (PDB ENTRY 1AI9)
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 6.5 277 dihydro-nicotinamide-adenine-dinucleotide phosphate (NADPH), 7-[2-METHOXY-1-(METHOXYMETHYL)ETHYL]-7H-PYRROLO[3,2-F] QUINAZOLINE-1,3-DIAMINE (GW557), PEG-3350, Potassium 4-morphilineethanesulfonic acid (MES), dithiothreitol (DTT), pH 6.50, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Crystal Properties Matthews coefficient Solvent content 2.27 43
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 76.91 α = 90 b = 67.28 β = 93.07 c = 38.49 γ = 90
Symmetry Space Group P 1 21 1
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 293 AREA DETECTOR XENTRONICS Huber Graphite MONOCHROMATOR 1989-05-06 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE ELLIOTT GX-21 1.5418
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (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 1.76 50 94.9 0.0552 0.0552 18.55 3.18 36247 -3 31.86
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1.76 1.83 72.76 0.193 0.193 2.77 1.693 4590
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Cut-off Sigma (I) Cut-off Sigma (F) Number Reflections (All) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (Observed) R-Work (Depositor) R-Work (DCC) R-Free (Depositor) Mean Isotropic B X-RAY DIFFRACTION DIRECT REPLACEMENT NONE CANDIDA ALBICANS DHFR (PDB ENTRY 1AI9) 1.76 10 -3 2 36248 33335 94.9 0.1506 0.1506 0.1501
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 p_transverse_tor 30.6 p_staggered_tor 14.8 p_scangle_it 7.865 p_scbond_it 6.581 p_mcangle_it 5.353 p_mcbond_it 4.686 p_planar_tor 3.9 p_chiral_restr 0.241 p_singtor_nbd 0.164 p_multtor_nbd 0.147
RMS Deviations Key Refinement Restraint Deviation p_transverse_tor 30.6 p_staggered_tor 14.8 p_scangle_it 7.865 p_scbond_it 6.581 p_mcangle_it 5.353 p_mcbond_it 4.686 p_planar_tor 3.9 p_chiral_restr 0.241 p_singtor_nbd 0.164 p_multtor_nbd 0.147 p_xyhbond_nbd 0.137 p_planar_d 0.04 p_angle_d 0.032 p_bond_d 0.021 p_plane_restr 0.021 p_hb_or_metal_coord p_xhyhbond_nbd p_special_tor
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 3183 Nucleic Acid Atoms Solvent Atoms 353 Heterogen Atoms 140
Software Software Software Name Purpose X-GEN data reduction FRODO model building PROFFT refinement X-GEN data scaling