3SKZ
Crystal structure of the 2'- deoxyguanosine riboswitch bound to guanosine
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 5 | 293 | 0.05 M Na-succinate, ~3.0 M ammonium sulfate, 0.5 mM spermine and 20 mM magnesium chloride, pH 5.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.12 | 41.98 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 34.806 | α = 90 |
b = 47.208 | β = 90 |
c = 227.279 | 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 | CCD | ADSC QUANTUM 315 | 2010-04-13 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | NSLS BEAMLINE X29A | 1.075 | NSLS | X29A |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge 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 | 2.6 | 20 | 90.3 | 0.066 | 39 | 8.4 | 12208 | 11024 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
1 | 2.6 | 2.69 | 87.2 | 0.209 | 7.8 | 8.9 | 1046 |
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 | R-Free | Mean Isotropic B | ||||||||
X-RAY DIFFRACTION | 2.605 | 20 | 1.89 | 10910 | 520 | 89.51 | 0.2221 | 0.2194 | 0.2751 |
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] | |
-8.7938 | 34.9925 | -26.1987 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
f_dihedral_angle_d | 22.025 |
f_angle_d | 1 |
f_chiral_restr | 0.059 |
f_plane_restr | 0.007 |
f_bond_d | 0.006 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | |
Nucleic Acid Atoms | 2908 |
Solvent Atoms | 7 |
Heterogen Atoms | 88 |
Software
Software | |
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Software Name | Purpose |
CBASS | data collection |
MOLREP | phasing |
PHENIX | refinement |
HKL-2000 | data reduction |
HKL-2000 | data scaling |