4U6M

Crystal structure of DNA/RNA duplex obtained in the presence of Spermine


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP7293Na Cacodylate, Spermine tetrahydrochloride
Crystal Properties
Matthews coefficientSolvent content
3.0559.66

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 49.09α = 90
b = 49.09β = 90
c = 45.99γ = 120
Symmetry
Space GroupP 61

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 315r2013-10-27MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONPHOTON FACTORY BEAMLINE BL-5A1.0Photon FactoryBL-5A

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
11.942.5299.80.0423.210.175022
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)
11.91.9799.80.3585.710.25500

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-WorkR-FreeMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTFREE R-VALUE4U6L1.942.52502027199.80.20650.233435.55
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]
0.8360.836-1.672
RMS Deviations
KeyRefinement Restraint Deviation
c_scangle_it2.039
c_scbond_it1.408
c_angle_d1.163
c_bond_d0.006
c_mcbond_it
c_mcangle_it
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms
Nucleic Acid Atoms374
Solvent Atoms97
Heterogen Atoms20

Software

Software
Software NamePurpose
CrystalCleardata reduction
PHENIXphasing
CNSrefinement
PDB_EXTRACTdata extraction
PHASERmodel building
d*TREKdata scaling
PHASERphasing