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DIHYDROFOLATE REDUCTASE COMPLEXED WITH FOLATE AND NICOTINAMIDE ADENINE DINUCLEOTIDE PHOSPHATE (OXIDIZED FORM)
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1RA3 PDB ENTRY 1RA3
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 = 74.261 α = 90 b = 59.91 β = 107.63 c = 38.957 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 1994-12-29 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 1.6 100 95 0.042 14.5 3.1 20384
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) 1.6 1.72 88.9 0.189 2.4 1.9
Refinement Statistics Diffraction ID Structure Solution Method Starting model Resolution (High) Resolution (Low) Number Reflections (All) 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 1RA3 1.6 20 20384 20384 95 0.171 0.1598
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 23.9 t_it 6.1 t_angle_deg 3 t_bond_d 0.022 t_trig_c_planes 0.022 t_nbd 0.019 t_gen_planes 0.009 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 138 Heterogen Atoms 80
Software Software Software Name Purpose TNT refinement UCSD data reduction UCSD data scaling TNT phasing