3Q36

Crystal structure of the 4Fe-4S cluster domain of human DNA primase large subunit


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP6.52950.2 M magnesium acetate tetrahydrate, 0.05 M sodium cacodylate, 15% w/v PEG8000, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 295K
Crystal Properties
Matthews coefficientSolvent content
2.8356.46

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 126.476α = 90
b = 83.724β = 97.65
c = 47.561γ = 90
Symmetry
Space GroupC 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 3152010-03-24MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONAPS BEAMLINE 24-ID-EAPS24-ID-E

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge 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
12.54098.60.07420.63.516851137.2
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)
2.52.5498.40.4513.13.1839

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB ENTRY 3LGB2.531.161658881397.10.2280.2280.25RANDOM44.9
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]
0.361.19-0.19-0.17
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d20.2
c_improper_angle_d1.95
c_angle_deg1.5
c_bond_d0.01
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2906
Nucleic Acid Atoms
Solvent Atoms21
Heterogen Atoms17

Software

Software
Software NamePurpose
ADSCdata collection
CNSrefinement
HKL-2000data reduction
HKL-2000data scaling
CNSphasing