3Q5C | pdb_00003q5c

Crystal structure of four-way junction with sticky end


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1P4YPDB ENTRY 1P4Y

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP72981mM DNA, 50mM Cacodylate buffer, 50mM CaCl2, 1mM spermine, 50% MPD in Reservior, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Crystal Properties
Matthews coefficientSolvent content
2.2645.65

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 23.64α = 112.77
b = 33.841β = 90
c = 40.4γ = 110.44
Symmetry
Space GroupP 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDMARMOSAIC 225 mm CCD2010-07-07MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONESRF BEAMLINE BM140.9922ESRFBM14

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)R Sym 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
12.536.894.10.0970.133.81.9370834902133.8
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.52.6493.20.2780.3931.41.9535

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation 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-Work (Depositor)R-Work (DCC)R-Free (Depositor)R-Free (DCC)R-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTThroughtPDB ENTRY 1P4Y2.50129.3570.013606344914590.420.24250.24070.240.27430.27RANDOM51.6479
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]
27.90585.2849-8.3794-27.27914.1963-0.6267
RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d36.143
f_angle_d2.739
f_chiral_restr0.11
f_bond_d0.016
f_plane_restr0.008
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms
Nucleic Acid Atoms808
Solvent Atoms9
Heterogen Atoms

Software

Software
Software NamePurpose
MAR345dtbdata collection
PHASERphasing
PHENIXrefinement
iMOSFLMdata reduction
SCALAdata scaling