1SXJ

Crystal Structure of the Eukaryotic Clamp Loader (Replication Factor C, RFC) Bound to the DNA Sliding Clamp (Proliferating Cell Nuclear Antigen, PCNA)


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1PLQ1PLQ, 1JR3, 1NJF, 1IQP
experimental modelPDB 1JR31PLQ, 1JR3, 1NJF, 1IQP
experimental modelPDB 1NJF1PLQ, 1JR3, 1NJF, 1IQP
experimental modelPDB 1IQP1PLQ, 1JR3, 1NJF, 1IQP

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP9292PEG 3350, sodium chloride, CHES, pH 9.0, VAPOR DIFFUSION, HANGING DROP, temperature 292K
Crystal Properties
Matthews coefficientSolvent content
2.5251.14

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 104.209α = 90
b = 110.481β = 90
c = 268.206γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 3152003-06-11MMAD
21x-ray100CCDADSC QUANTUM 3152003-07-09MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONALS BEAMLINE 8.2.20.9464, 0.9798ALS8.2.2
2SYNCHROTRONALS BEAMLINE 8.2.21.0ALS8.2.2

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Sym I (Observed)Net I Over Average Sigma (I)RedundancyNumber Reflections (All)Number Reflections (Observed)Observed Criterion Sigma (F)Observed Criterion Sigma (I)B (Isotropic) From Wilson Plot
1,22.851001000.0922.79.113971913289541.4
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
1,22.852.951000.4812.75.47230

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (All)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMADTHROUGHOUT1PLQ, 1JR3, 1NJF, 1IQP2.8548.81132895132895607795.10.2510.2510.2510.306RANDOM91.7
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]
-24.3318.116.22
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d21.8
c_scangle_it11.42
c_scbond_it8.67
c_mcangle_it7.76
c_mcbond_it5.17
c_angle_deg1.1
c_improper_angle_d0.69
c_bond_d0.005
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms19585
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms155

Software

Software
Software NamePurpose
CNSrefinement
HKL-2000data reduction
SCALEPACKdata scaling
SOLVEphasing
SHARPphasing