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RIBONUCLEOTIDE REDUCTASE E441D MUTANT R1 PROTEIN FROM ESCHERICHIA COLI
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 5R1R PDB ENTRY 5R1R
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 6 PROTEIN WAS CRYSTALLIZED FROM 1.7 M LITHIUM SULFATE, AND 10 MM MAGNESIUM SULFATE IN 25 MM CITRATE BUFFER AT PH 6.0 THE PROTEIN SOLUTION CONTAINED 17 MG/ML R1 PROTEIN, 20 FOLD EXCESS OF A 20-RESIDUE PEPTIDE CORRESPONDING TO THE C-TERMINUS OF THE R2 SUBUNIT AND IS ESSENTIAL FOR CRYSTALLIZATION
Crystal Properties Matthews coefficient Solvent content 3.06 56
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 224.49 α = 90 b = 224.49 β = 90 c = 336.25 γ = 120
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 1995-11-18 M
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON NSLS NSLS
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 3.1 40 89.7 0.11 0.11 10.8 3 52995 -3
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) 3.1 3.2 88.9 0.35 0.35 2.5 2.7
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (Observed) R-Work (Depositor) R-Free (Depositor) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION RIGID BODY THROUGHOUT PDB ENTRY 5R1R 3.1 20 52995 89.7 0.202 0.194 0.24 RANDOM
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]
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 18167 Nucleic Acid Atoms Solvent Atoms 90 Heterogen Atoms
Software Software Software Name Purpose DENZO data reduction SCALEPACK data scaling TNT refinement REFMAC refinement TNT phasing