4RNE

Structural variations and solvent structure of UGGGGU quadruplexes stabilized by Sr2+ ions


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP7298MgCl2 20mM, SrCl2 80mM, CaCl2 40mM, SPM 4Cl 12mM, Sodium cacodylate 20mM, 35% MPD, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Crystal Properties
Matthews coefficientSolvent content
1.5621.45

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 37.656α = 90
b = 54.197β = 90
c = 95.677γ = 90
Symmetry
Space GroupC 2 2 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 3152007-02-28MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSSRL BEAMLINE BL9-10.979SSRLBL9-1

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
11.0195.6899.25129451294
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.011.0694.97088

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUT1.012848629260699.110.102750.101850.11916RANDOM12.816
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]
-0.05-0.080.13
RMS Deviations
KeyRefinement Restraint Deviation
r_sphericity_free24.249
r_sphericity_bonded10.252
r_rigid_bond_restr6.449
r_long_range_B_refined3.041
r_long_range_B_other2.32
r_scangle_other1.759
r_angle_other_deg1.747
r_angle_refined_deg1.67
r_scbond_it1.463
r_scbond_other1.304
RMS Deviations
KeyRefinement Restraint Deviation
r_sphericity_free24.249
r_sphericity_bonded10.252
r_rigid_bond_restr6.449
r_long_range_B_refined3.041
r_long_range_B_other2.32
r_scangle_other1.759
r_angle_other_deg1.747
r_angle_refined_deg1.67
r_scbond_it1.463
r_scbond_other1.304
r_chiral_restr0.1
r_gen_planes_refined0.043
r_bond_refined_d0.012
r_bond_other_d0.002
r_gen_planes_other0.001
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms
Nucleic Acid Atoms1032
Solvent Atoms232
Heterogen Atoms19

Software

Software
Software NamePurpose
MOSFLMdata reduction
PHASERphasing
REFMACrefinement
SCALAdata scaling