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STRUCTURAL BASIS FOR ALLOSTERIC SUBSTRATE SPECIFICITY REGULATION IN CLASS III RIBONUCLEOTIDE REDUCTASES: NRDD IN COMPLEX WITH DTTP
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1B8B 1B8B.PDB
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 7.5 PEG 400, MGCL2, HEPES, DTT, pH 7.50
Crystal Properties Matthews coefficient Solvent content 4.3 71.37
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 98.099 α = 90 b = 98.099 β = 90 c = 243.039 γ = 90
Symmetry Space Group P 43 21 2
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 100 CCD MARRESEARCH M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ESRF BEAMLINE ID14-3 ESRF ID14-3
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge 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 2.9 20 98.9 0.05 21.8 3.7 26786 80.1
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 2.9 2.97 98.4 0.217 5.8
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model 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-Work (DCC) R-Free (Depositor) R-Free (DCC) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT 1B8B.PDB 2.9 19.99 1640058.6 26786 2271 98.9 0.221 0.221 0.2231 0.261 0.2603 RANDOM 53.5
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] 4.85 4.85 -9.71
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 22.8 c_scangle_it 5.96 c_mcangle_it 4.39 c_scbond_it 4 c_mcbond_it 2.61 c_angle_deg 1.6 c_improper_angle_d 1.07 c_bond_d 0.007 c_bond_d_na c_bond_d_prot
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 22.8 c_scangle_it 5.96 c_mcangle_it 4.39 c_scbond_it 4 c_mcbond_it 2.61 c_angle_deg 1.6 c_improper_angle_d 1.07 c_bond_d 0.007 c_bond_d_na c_bond_d_prot c_angle_d c_angle_d_na c_angle_d_prot c_angle_deg_na c_angle_deg_prot c_dihedral_angle_d_na c_dihedral_angle_d_prot c_improper_angle_d_na c_improper_angle_d_prot
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 4395 Nucleic Acid Atoms Solvent Atoms 24 Heterogen Atoms 60
Software Software Software Name Purpose CNS refinement DENZO data reduction SCALEPACK data scaling