3GCY
Crystal studies of d(CACGCG).d(CGCGTG) grown in presence of calcium chloride
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 6.99 | 293 | Sodium Cacodylate 50mM, Calcium chloride 140mM, Spermine 1mM, pH 6.99, VAPOR DIFFUSION, HANGING DROP, temperature 293K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
1.64 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 17.388 | α = 90 |
b = 30.618 | β = 90 |
c = 44.488 | γ = 90 |
Symmetry | |
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Space Group | P 21 21 21 |
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 | 100 | IMAGE PLATE | MAR scanner 345 mm plate | Mirrors | 2009-02-14 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | ROTATING ANODE | BRUKER AXS MICROSTAR | 1.54 |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | R Sym I (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 | 1.8 | 30 | 95.9 | 0.1026 | 0.0888 | 4.2 | 4.1 | 2431 | 2334 | 27.37 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | R-Sym I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||
1.8 | 1.86 | 99.1 | 0.3416 | 0.2905 | 1.3 | 4.27 | 226 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Number Reflections (All) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | |||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | Z-DNA FIBER MODEL BUILT WITH INSIGHT-II | 1.8 | 15.12 | 2309 | 2216 | 114 | 95.96 | 0.22845 | 0.22812 | 0.23339 | RANDOM | 19.708 |
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] | |
-0.01 | 0.01 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_scangle_it | 2.196 |
r_scbond_it | 2.172 |
r_angle_refined_deg | 2.087 |
r_nbtor_refined | 0.287 |
r_xyhbond_nbd_refined | 0.263 |
r_symmetry_vdw_refined | 0.247 |
r_nbd_refined | 0.18 |
r_symmetry_hbond_refined | 0.179 |
r_chiral_restr | 0.067 |
r_bond_refined_d | 0.01 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | |
Nucleic Acid Atoms | 246 |
Solvent Atoms | 36 |
Heterogen Atoms |
Software
Software | |
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Software Name | Purpose |
MAR345dtb | data collection |
PHASER | phasing |
REFMAC | refinement |
AUTOMAR | data reduction |
SCALEPACK | data scaling |