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E. coli Methylenetetrahydrofolate Reductase (oxidized)
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1B5T PDB entry 1B5T
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 7.4 295 PEG 4000, LITHIUM SULFATE, SODIUM CACODYLATE, ETHANOL, MESO-ERYTHRITOL, pH 7.4, VAPOR DIFFUSION, HANGING DROP, temperature 295.0K
Crystal Properties Matthews coefficient Solvent content 2.69 54.2
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 103.236 α = 90 b = 127.789 β = 121.55 c = 97.703 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 100 IMAGE PLATE RIGAKU RAXIS IV 2002-08-13 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE RIGAKU 1.5418
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (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 1.85 19.91 99.4 21.6 91751 91236 21.8
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 1.85 1.97 98.4 4.2 13534
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Number Reflections (All) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) R-Factor (Observed) R-Work (Depositor) R-Work (DCC) R-Free (Depositor) R-Free (DCC) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT PDB entry 1B5T 1.85 19.91 91751 91236 9117 99.4 0.229 0.214 0.214 0.2125 0.237 0.2354 RANDOM 29.9
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] -0.28 -3.15 1.73 -1.44
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 22.2 c_scangle_it 3.08 c_scbond_it 2.1 c_mcangle_it 2.04 c_angle_deg 1.4 c_mcbond_it 1.35 c_improper_angle_d 0.85 c_bond_d 0.008
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 6472 Nucleic Acid Atoms Solvent Atoms 435 Heterogen Atoms 203
Software Software Software Name Purpose CNS refinement SCALEPACK data scaling MOLREP phasing