227D

A CRYSTALLOGRAPHIC AND SPECTROSCOPIC STUDY OF THE COMPLEX BETWEEN D(CGCGAATTCGCG)2 AND 2,5-BIS(4-GUANYLPHENYL)FURAN, AN ANALOGUE OF BERENIL. STRUCTURAL ORIGINS OF ENHANCED DNA-BINDING AFFINITY


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP7286pH 7.00, VAPOR DIFFUSION, SITTING DROP, temperature 286.00K
Crystal Properties
Matthews coefficientSolvent content
2.3447.48

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 25.28α = 90
b = 40.69β = 90
c = 66.73γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray287AREA DETECTORXENTRONICS
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODE

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (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
12.236933472

Refinement

Statistics
Diffraction IDStructure Solution MethodResolution (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 DIFFRACTION2.2822475860.1790.179
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
x_angle_deg4
x_bond_d0.024
x_bond_d_na
x_bond_d_prot
x_angle_d
x_angle_d_na
x_angle_d_prot
x_angle_deg_na
x_angle_deg_prot
x_dihedral_angle_d
RMS Deviations
KeyRefinement Restraint Deviation
x_angle_deg4
x_bond_d0.024
x_bond_d_na
x_bond_d_prot
x_angle_d
x_angle_d_na
x_angle_d_prot
x_angle_deg_na
x_angle_deg_prot
x_dihedral_angle_d
x_dihedral_angle_d_na
x_dihedral_angle_d_prot
x_improper_angle_d
x_improper_angle_d_na
x_improper_angle_d_prot
x_mcbond_it
x_mcangle_it
x_scbond_it
x_scangle_it
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms
Nucleic Acid Atoms486
Solvent Atoms54
Heterogen Atoms23

Software

Software
Software NamePurpose
X-PLORrefinement