460D

A "HYDRAT-ION SPINE" IN A B-DNA MINOR GROOVE


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP6.9275SITTING DROPLETS CONTAINING 1.2 MM OLIGONUCLEOTIDE, 20 MM RB CACODYLATE PH 6.9, 25 MM MAGNESIUM ACETATE, 3.2 MM SPERMINE TETRACLORIDE AGAINST RESERVOIR OF 40% MPD, VAPOR DIFFUSION, SITTING DROP, temperature 275K
Crystal Properties
Matthews coefficientSolvent content
2.2344.84

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 25.111α = 90
b = 39.731β = 90
c = 65.829γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDMARRESEARCH1998-11-13MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONAPS BEAMLINE 5ID-BAPS5ID-B

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
11.22097.30.0685.82066120661
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)
1.21.2493.30.115

Refinement

Statistics
Diffraction IDStructure Solution MethodResolution (High)Resolution (Low)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (All)R-Factor (Observed)R-WorkR-FreeMean Isotropic B
X-RAY DIFFRACTION1.220206612066193.30.1790.179
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
s_angle_d0.021
s_bond_d0.008
s_similar_dist
s_from_restr_planes
s_zero_chiral_vol
s_non_zero_chiral_vol
s_anti_bump_dis_restr
s_rigid_bond_adp_cmpnt
s_similar_adp_cmpnt
s_approx_iso_adps
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms
Nucleic Acid Atoms508
Solvent Atoms189
Heterogen Atoms4

Software

Software
Software NamePurpose
AMoREphasing
SHELXL-97refinement
DENZOdata reduction
SCALEPACKdata scaling