4RUL

Crystal structure of full-length E.Coli topoisomerase I in complex with ssDNA


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP62970.125M ammonium sulfate, 0.1M MES, 1mM zinc sulfate, 19% PEG 5000 monomethyl ether, pH 6.0, VAPOR DIFFUSION, SITTING DROP, temperature 297K
Crystal Properties
Matthews coefficientSolvent content
3.1560.89

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 85.613α = 90
b = 80.295β = 91.26
c = 97.475γ = 90
Symmetry
Space GroupP 1 21 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 315rmirror2014-03-17MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONAPS BEAMLINE 19-ID0.97913APS19-ID

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
12.93899.60.06423.43.52953329533-566.4
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)
12.92.951000.6761.93.6

Refinement

Statistics
Diffraction IDStructure Solution MethodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTPDB ENTRY: 3PWT2.937.7351.352950829508149299.550.21190.20950.2589
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]
RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d13.829
f_angle_d0.617
f_chiral_restr0.04
f_bond_d0.003
f_plane_restr0.003
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms6141
Nucleic Acid Atoms252
Solvent Atoms38
Heterogen Atoms30

Software

Software
Software NamePurpose
SBC-Collectdata collection
HKL-3000data reduction
PHENIXrefinement
HKL-3000data reduction
HKL-3000data scaling
HKL-3000phasing