7JI6

Self-assembly of a 3D DNA crystal lattice (4x6 scramble junction version) containing the J34 immobile Holliday junction with R3 symmetry


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP2980.5 mL of 0.05 M Cacodylate pH 6.0 with 20 mM MgCl2, 1.0 mM spermine, 2 mM CaCl2, and 10% MPD was added to the reservoir with 2 uL added to the drop containing 4 uL of DNA stock
Crystal Properties
Matthews coefficientSolvent content
4.8274.49

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 111.796α = 90
b = 111.796β = 90
c = 51.296γ = 120
Symmetry
Space GroupH 3

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100PIXELDECTRIS PILATUS3 6M2018-08-15MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONALS BEAMLINE 5.0.21ALS5.0.2

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)Rrim I (All)Rpim I (All)CC (Half)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
135096.30.0720.0760.024110.69.7459166.12
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Rrim I (All)Rpim I (All)CC (Half)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
133.0570.30.5670.6010.1950.9478.4

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUT6XNA3.00545.3272.05447021893.810.20980.20810.241692.8821
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_d33.327
f_angle_d0.882
f_chiral_restr0.044
f_bond_d0.007
f_plane_restr0.005
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms
Nucleic Acid Atoms855
Solvent Atoms
Heterogen Atoms1

Software

Software
Software NamePurpose
HKL-2000data reduction
HKL-2000data scaling
PHENIXrefinement
PDB_EXTRACTdata extraction
PHASERphasing