123D

DNA HELIX STRUCTURE AND REFINEMENT ALGORITHM: COMPARISON OF MODELS FOR D(CCAGGCM==5==CTGG) DERIVED FROM NUCLSQ, TNT, AND X-PLOR


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1MICRODIALYSIS7.5277pH 7.50, MICRODIALYSIS, temperature 277.00K
Crystal Properties
Matthews coefficientSolvent content
2.3447.49

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 53.77α = 90
b = 53.77β = 90
c = 34.35γ = 120
Symmetry
Space GroupP 6

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-rayDIFFRACTOMETERENRAF-NONIUS CAD4
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODE

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
11.7572094704

Refinement

Statistics
Diffraction IDStructure Solution MethodResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeMean Isotropic B
X-RAY DIFFRACTION1.78237990.1910.191
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]
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms
Nucleic Acid Atoms404
Solvent Atoms80
Heterogen Atoms2

Software

Software
Software NamePurpose
X-PLORrefinement