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Structural mechanism of allosteric substrate specificity in a ribonucleotide reductase: dATP-CDP complex
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1XJE PDB entry 1XJE
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 4.5 293 PEG8000, sodium acetate, sodium chloride, dithiotreithol, pH 4.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Crystal Properties Matthews coefficient Solvent content 2.55 51.68
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 105.97 α = 90 b = 123.83 β = 104.02 c = 117.41 γ = 90
Symmetry Space Group P 1 21 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 CCD MARRESEARCH 2003-01-24 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON EMBL/DESY, HAMBURG BEAMLINE X11 0.8126 EMBL/DESY, HAMBURG X11
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 2.25 20 99.3 0.097 8 3 139338 138333
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) 2.25 2.5 99.7 0.368 3.2 3
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-Work (DCC) R-Free (Depositor) R-Free (DCC) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT PDB entry 1XJE 2.25 19.54 131406 6927 99.49 0.19303 0.18983 0.1896 0.25391 0.2521 RANDOM 29.101
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] -0.74 1.48 -1.08 2.54
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 37.226 r_dihedral_angle_4_deg 19.986 r_dihedral_angle_3_deg 19.284 r_dihedral_angle_1_deg 7.466 r_scangle_it 4.088 r_scbond_it 2.654 r_angle_refined_deg 1.915 r_mcangle_it 1.767 r_mcbond_it 1.06 r_nbtor_refined 0.309
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 37.226 r_dihedral_angle_4_deg 19.986 r_dihedral_angle_3_deg 19.284 r_dihedral_angle_1_deg 7.466 r_scangle_it 4.088 r_scbond_it 2.654 r_angle_refined_deg 1.915 r_mcangle_it 1.767 r_mcbond_it 1.06 r_nbtor_refined 0.309 r_nbd_refined 0.222 r_symmetry_vdw_refined 0.193 r_xyhbond_nbd_refined 0.171 r_symmetry_hbond_refined 0.156 r_chiral_restr 0.133 r_bond_refined_d 0.02 r_gen_planes_refined 0.007 r_bond_other_d r_angle_other_deg r_gen_planes_other r_nbd_other r_nbtor_other r_xyhbond_nbd_other r_metal_ion_refined r_metal_ion_other r_symmetry_vdw_other r_symmetry_hbond_other r_symmetry_metal_ion_refined r_symmetry_metal_ion_other r_mcbond_other r_rigid_bond_restr r_sphericity_free r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 19664 Nucleic Acid Atoms Solvent Atoms 649 Heterogen Atoms 221
Software Software Software Name Purpose REFMAC refinement MAR345 data collection XDS data scaling CNS phasing