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Crystal structure of PCNA123 heterotrimer.
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1UD9 PCNA1, PCNA2 and PCNA3 from Sulfolobus solfataricus
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 7.5 293 2.5 M NH4(SO4)2, 0.1 M Tris 7.5, 2% Peg400, 1.6% Glycerol, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Crystal Properties Matthews coefficient Solvent content 2.67 53.85
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 148.14 α = 90 b = 222.33 β = 90 c = 80.23 γ = 90
Symmetry Space Group P 21 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 ADSC QUANTUM 315 2005-10-26 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON APS BEAMLINE 8-BM 0.9791 APS 8-BM
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 2.5 30 95.7 0.126 11.739 4.1 88416 88416 48.6
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 2.5 2.59 93.6 0.625 1.8 4
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 PCNA1, PCNA2 and PCNA3 from Sulfolobus solfataricus 2.5 30 88416 88416 1796 95.7 0.2113 0.2113 0.2139 0.2138 0.2505 0.2505 Random 31.0928
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] -0.733 -3.966 4.7
RMS Deviations Key Refinement Restraint Deviation r_mcbond_it 1.227 r_angle_refined_deg 1.15475 r_chiral_restr 0.08 r_bond_refined_d 0.009147 r_gen_planes_refined 0.003
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 17361 Nucleic Acid Atoms Solvent Atoms 1046 Heterogen Atoms 81
Software Software Software Name Purpose ADSC data collection PHASER phasing CNS refinement HKL-2000 data reduction SCALEPACK data scaling