2H7F

Structure of variola topoisomerase covalently bound to DNA


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP82948% PEG 8000, 0.1M Tris-HCl, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 294K
Crystal Properties
Matthews coefficientSolvent content
359

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 68.523α = 90
b = 138.232β = 90
c = 113.079γ = 90
Symmetry
Space GroupC 2 2 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 42005-04-12MSINGLE WAVELENGTH
21x-ray100CCDADSC QUANTUM 42005-04-12MMAD
31
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONALS BEAMLINE 8.2.10.97917ALS8.2.1
2SYNCHROTRONALS BEAMLINE 8.2.10.97952, 0.97935, 0.96394ALS8.2.1

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
1,22.75099.50.03829.44.314945
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)
1,22.72.7899.80.1994.31214

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)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 DIFFRACTIONMADTHROUGHOUT2.7501509077099.720.1930.1930.1910.237RANDOM68.984
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]
-1.34.04-2.74
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg37.073
r_dihedral_angle_4_deg20.93
r_dihedral_angle_3_deg20.164
r_dihedral_angle_1_deg5.721
r_scangle_it1.982
r_angle_refined_deg1.53
r_scbond_it1.229
r_mcangle_it0.915
r_mcbond_it0.52
r_nbtor_refined0.312
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg37.073
r_dihedral_angle_4_deg20.93
r_dihedral_angle_3_deg20.164
r_dihedral_angle_1_deg5.721
r_scangle_it1.982
r_angle_refined_deg1.53
r_scbond_it1.229
r_mcangle_it0.915
r_mcbond_it0.52
r_nbtor_refined0.312
r_symmetry_vdw_refined0.235
r_nbd_refined0.225
r_symmetry_hbond_refined0.154
r_xyhbond_nbd_refined0.122
r_chiral_restr0.093
r_bond_refined_d0.011
r_gen_planes_refined0.005
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2585
Nucleic Acid Atoms505
Solvent Atoms54
Heterogen Atoms

Software

Software
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
SOLVEphasing
REFMACrefinement
PDB_EXTRACTdata extraction