3U89

Crystal structure of one turn of g/c rich b-dna revisited


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP6.5277Sodium Cacodylate, Magnesium Acetate, MPD, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Crystal Properties
Matthews coefficientSolvent content
2.0339.41

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 32.136α = 90
b = 25.172β = 116.25
c = 34.094γ = 90
Symmetry
Space GroupC 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray120CCDMARMOSAIC 225 mm CCD2003-12-07MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONAPS BEAMLINE 22-ID1APS22-ID

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
10.9130.680.60.07953.43.414269

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (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 REPLACEMENTTHROUGHOUTPDB ENTRY 1BD10.9616.0612848108792.430.104630.102910.12487RANDOM9.412
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]
-0.19-0.17-0.060.1
RMS Deviations
KeyRefinement Restraint Deviation
r_scangle_it2.492
r_angle_refined_deg1.984
r_scbond_it1.865
r_rigid_bond_restr1.091
r_chiral_restr0.122
r_gen_planes_refined0.034
r_bond_refined_d0.012
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms
Nucleic Acid Atoms202
Solvent Atoms112
Heterogen Atoms5

Software

Software
Software NamePurpose
REFMACrefinement
CNSrefinement
HKL-2000data reduction
HKL-2000data scaling
CNSphasing