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STRUCTURE OF DIHYDROFOLATE REDUCTASE
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 7.5 CRYSTALS WERE GROWN FROM HANGING- DROPS CONTAINING PROTEIN AT A FINAL CONCENTRATION OF ABOUT 15 MG/ML IN 100 MM TRIS-HCL BUFFER AT PH 7.5 AND 25% 2-METHYL-2,4-PENTANEDIOL (MPD). DROPS WERE EQUILIBRATED AGAINST A RESERVOIR CONTAINING 100 MM KH2PO4 BUFFER AT PH 6.8 AND 50% MPD., vapor diffusion - hanging drop
Crystal Properties Matthews coefficient Solvent content 2 40
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 68.74 α = 90 b = 68.74 β = 90 c = 52.45 γ = 90
Symmetry Space Group I 41 2 2
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 277 AREA DETECTOR XUONG-HAMLIN MULTIWIRE 1991-10-15 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 1.7 10 98 0.036 13 4 7060 4 10.4
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) 1.7 1.76 97 0.1095 3 3
Refinement Statistics Diffraction ID Structure Solution Method Resolution (High) Resolution (Low) Cut-off Sigma (F) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (Observed) R-Work (Depositor) R-Free (Depositor) Mean Isotropic B X-RAY DIFFRACTION MIR 1.7 10 2 6732 94 0.192 0.192 18.4
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 x_dihedral_angle_d 16.8 x_angle_deg 2.7 x_bond_d 0.016 x_bond_d_na x_bond_d_prot x_angle_d x_angle_d_na x_angle_d_prot x_angle_deg_na x_angle_deg_prot
RMS Deviations Key Refinement Restraint Deviation x_dihedral_angle_d 16.8 x_angle_deg 2.7 x_bond_d 0.016 x_bond_d_na x_bond_d_prot x_angle_d x_angle_d_na x_angle_d_prot x_angle_deg_na x_angle_deg_prot x_dihedral_angle_d_na x_dihedral_angle_d_prot x_improper_angle_d x_improper_angle_d_na x_improper_angle_d_prot x_mcbond_it x_mcangle_it x_scbond_it x_scangle_it
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 457 Nucleic Acid Atoms Solvent Atoms 58 Heterogen Atoms
Software Software Software Name Purpose X-PLOR model building X-PLOR refinement UCSD data reduction UCSD data scaling X-PLOR phasing