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Crystal Structure of the Eukaryotic Clamp Loader (Replication Factor C, RFC) Bound to the DNA Sliding Clamp (Proliferating Cell Nuclear Antigen, PCNA)
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1PLQ 1PLQ, 1JR3, 1NJF, 1IQP experimental model PDB 1JR3 1PLQ, 1JR3, 1NJF, 1IQP experimental model PDB 1NJF 1PLQ, 1JR3, 1NJF, 1IQP experimental model PDB 1IQP 1PLQ, 1JR3, 1NJF, 1IQP
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 9 292 PEG 3350, sodium chloride, CHES, pH 9.0, VAPOR DIFFUSION, HANGING DROP, temperature 292K
Crystal Properties Matthews coefficient Solvent content 2.52 51.14
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 104.209 α = 90 b = 110.481 β = 90 c = 268.206 γ = 90
Symmetry Space Group P 21 21 21
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 2003-06-11 M MAD 2 1 x-ray 100 CCD ADSC QUANTUM 315 2003-07-09 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ALS BEAMLINE 8.2.2 0.9464, 0.9798 ALS 8.2.2 2 SYNCHROTRON ALS BEAMLINE 8.2.2 1.0 ALS 8.2.2
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 2.85 100 100 0.09 22.7 9.1 139719 132895 41.4
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) 1,2 2.85 2.95 100 0.481 2.7 5.4 7230
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 MAD THROUGHOUT 1PLQ, 1JR3, 1NJF, 1IQP 2.85 48.81 132895 132895 6077 95.1 0.251 0.251 0.251 0.2553 0.306 0.3086 RANDOM 91.7
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] -24.33 18.11 6.22
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 21.8 c_scangle_it 11.42 c_scbond_it 8.67 c_mcangle_it 7.76 c_mcbond_it 5.17 c_angle_deg 1.1 c_improper_angle_d 0.69 c_bond_d 0.005
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 19585 Nucleic Acid Atoms Solvent Atoms Heterogen Atoms 155
Software Software Software Name Purpose CNS refinement HKL-2000 data reduction SCALEPACK data scaling SOLVE phasing SHARP phasing