117D
CRYSTAL AND MOLECULAR STRUCTURE OF THE ALTERNATING DODECAMER D(GCGTACGTACGC) IN THE A-DNA FORM: COMPARISON WITH THE ISOMORPHOUS NON-ALTERNATING DODECAMER D(CCGTACGTACGG)
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION | 6.5 | 277 | pH 6.50, VAPOR DIFFUSION, temperature 277.00K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
3.01 | 59.09 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 46.2 | α = 90 |
b = 46.2 | β = 90 |
c = 71.5 | γ = 120 |
Symmetry | |
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Space Group | P 61 2 2 |
Diffraction
Diffraction Experiment | ||||||||||||||
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ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | OSCILLATION CAMERA |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | ROTATING ANODE | ELLIOTT GX-6 |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | Net I Over Average Sigma (I) | Redundancy | Number Reflections (All) | Number Reflections (Observed) | Observed Criterion Sigma (F) | Observed Criterion Sigma (I) | B (Isotropic) From Wilson Plot | |||||||||
1 | 2.55 | 2008 | 1115 | 2 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work (Depositor) | R-Work (DCC) | R-Free (Depositor) | Mean Isotropic B | |||||||
X-RAY DIFFRACTION | 2.55 | 8 | 2 | 1089 | 0.142 | 0.15 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
n_phos_angle_it | 3.9 |
n_sugar_angle_it | 3.3 |
n_phos_bond_it | 3.1 |
n_sugar_bond_it | 2.4 |
n_singtor_nbd | 0.146 |
n_multtor_nbd | 0.111 |
n_chiral_restr | 0.048 |
n_phos_bond_angle_d | 0.045 |
n_phos_bond_d | 0.024 |
n_sugar_bond_angle_d | 0.02 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | |
Nucleic Acid Atoms | 243 |
Solvent Atoms | 33 |
Heterogen Atoms |
Software
Software | |
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Software Name | Purpose |
NUCLSQ | refinement |