362D

THE STRUCTURE OF D(TGCGCA)2 AND A COMPARISON TO OTHER Z-DNA HEXAMERS


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1DCGMODIFIED NDB ENTRY ZDF002 (PDB ENTRY 1DCG)

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
16pH 6.00
Crystal Properties
Matthews coefficientSolvent content
238

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 21.162α = 90
b = 28.67β = 90
c = 44.335γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray120IMAGE PLATEMARRESEARCH1995-09-01M
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSRS BEAMLINE PX9.6SRSPX9.6

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
11.32499.20.0432047024
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)
1.31.3287.40.07823.64

Refinement

Statistics
Diffraction IDStructure Solution MethodStarting modelResolution (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 DIFFRACTIONMOLECULAR REPLACEMENTMODIFIED NDB ENTRY ZDF002 (PDB ENTRY 1DCG)1.3107005700570050.120.1170.173
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]
Coordinate Error
Structure Solution MethodRefinement High ResolutionRefinement Low Resolution
1138332
RMS Deviations
KeyRefinement Restraint Deviation
s_approx_iso_adps0.065
s_similar_adp_cmpnt0.022
s_anti_bump_dis_restr0.016
s_rigid_bond_adp_cmpnt0.005
s_bond_d
s_angle_d
s_similar_dist
s_from_restr_planes
s_zero_chiral_vol
s_non_zero_chiral_vol
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms
Nucleic Acid Atoms243
Solvent Atoms78
Heterogen Atoms14

Software

Software
Software NamePurpose
AMoREphasing
SHELXL-96refinement
DENZOdata reduction
SCALEPACKdata scaling