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DIHYDROFOLATE REDUCTASE COMPLEXED WITH FOLATE AND 2-MONOPHOSPHOADENOSINE 5'-DIPHOSPHORIBOSE
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1RA2 PDB ENTRY 1RA2
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 7 pH 7.0
Crystal Properties Matthews coefficient Solvent content 2.31 46.8
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 74.27 α = 90 b = 59.86 β = 107.38 c = 38.92 γ = 90
Symmetry Space Group C 1 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 298 AREA DETECTOR XUONG-HAMLIN MULTIWIRE 1993-01-27 M
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE RIGAKU RUH2R
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (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 1.8 100 72 0.038 14 3.1 10657
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1.84 2.03 58 0.149 2.7 2.3
Refinement Statistics Diffraction ID Structure Solution Method Starting model Resolution (High) Resolution (Low) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Work (Depositor) R-Work (DCC) R-Free (Depositor) Mean Isotropic B X-RAY DIFFRACTION DIFFERENCE FOURIER PDB ENTRY 1RA2 1.8 20 10657 72 0.151 0.141
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 t_dihedral_angle_d 24 t_it 6.1 t_angle_deg 3.1 t_nbd 0.026 t_bond_d 0.022 t_trig_c_planes 0.021 t_gen_planes 0.008 t_incorr_chiral_ct t_pseud_angle
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1268 Nucleic Acid Atoms Solvent Atoms 144 Heterogen Atoms 63
Software Software Software Name Purpose TNT refinement UCSD data reduction UCSD data scaling TNT phasing