X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
14.52775ul of 4.5mg/ml WRN exonuclease buffered in 25mM Tris HCl, 100mM NaCl, pH7.5, mixed with 5ul 1% MPEG 2K, 200mM Na Acetate, pH 4.5 from the reservoir solution and 1ul EDTA additive. , VAPOR DIFFUSION, SITTING DROP, temperature 277K, pH 4.50
Crystal Properties
Matthews coefficientSolvent content
3.766.77

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 80.269α = 90
b = 80.269β = 90
c = 93.23γ = 120
Symmetry
Space GroupP 32 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 210MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONALS BEAMLINE 5.0.2ALS5.0.2

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (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
12.0527.8799.720.82130914.6
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
2.052.1886.80.3313

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 (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTINITIAL MODEL BUILT FROM 2.5A SELENOMET MAD DATASET, USED FOR MR2.0527.872072621309104795.70.2090.2090.241RANDOM33.2
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]
7.734.427.73-15.46
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d22.3
c_scangle_it3.69
c_scbond_it2.53
c_mcangle_it2.13
c_mcbond_it1.41
c_angle_deg1.1
c_improper_angle_d0.67
c_bond_d0.006
c_bond_d_na
c_bond_d_prot
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d22.3
c_scangle_it3.69
c_scbond_it2.53
c_mcangle_it2.13
c_mcbond_it1.41
c_angle_deg1.1
c_improper_angle_d0.67
c_bond_d0.006
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 AtomsNumber
Protein Atoms1589
Nucleic Acid Atoms
Solvent Atoms262
Heterogen Atoms

Software

Software
Software NamePurpose
HKL-2000data collection
SCALEPACKdata scaling
AMoREphasing
CNSrefinement
HKL-2000data reduction