180D

SEQUENCE-DEPENDENT MICROHETEROGENEITY OF Z-DNA: THE CRYSTAL AND MOLECULAR STRUCTURES OF D(CACGCG).D(CGCGTG) AND D(CGCACG).D(CGTGCG)


X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 6.8
Details pH 6.80, VAPOR DIFFUSION, HANGING DROP

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 17.75 α = 90
b = 17.76 β = 90
c = 42.77 γ = 120.05
Symmetry
Space Group P 1 1 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 296
Diffraction Detector
Detector Diffraction Type Details Collection Date
DIFFRACTOMETER ENRAF-NONIUS CAD4 -- --
Diffraction Radiation
Monochromator Protocol
-- --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
-- -- -- -- --

Refinement

Statistics
Structure Solution Method Refinement High Resolution Refinement Low Resolution Cut-off Sigma (I) Cut-off Sigma (F) Number of Reflections (All) Number of Reflections (Observed) Number of Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) R-Factor (Observed) R-Work R-Free R-Free Selection Details
-- 2.5 10.0 -- 2.0 -- 530 -- -- -- 0.161 -- -- --
RMS Deviations
Key Refinement Restraint Deviation
n_multtor_nbd 0.093
n_singtor_nbd 0.069
n_chiral_restr 0.038
n_plane_restr 0.005
n_phos_bond_angle_d 0.07
n_phos_bond_d 0.071
n_sugar_bond_angle_d 0.026
n_sugar_bond_it 5.5
n_sugar_angle_it 8.0
n_phos_bond_it 12.76
n_phos_angle_it 10.21
n_sugar_bond_d 0.01
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 0
Nucleic Acid Atoms 240
Heterogen Atoms 0
Solvent Atoms 21

Software

Computing
Computing Package Purpose
NUCLSQ Structure Refinement
Software
Software Name Purpose
NUCLSQ refinement