1J9H
Crystal Structure of an RNA Duplex with Uridine Bulges
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 6 | 20mM sodium cacodylate (pH 6.0), 10mM calcium chloride, 100mM sodium chloride, and 10%(v/v) MPD against 50% MPD in the reservoir, VAPOR DIFFUSION, HANGING DROP |
Crystal Properties | |
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Matthews coefficient | Solvent content |
1.96 | 37.09 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 47.18 | α = 90 |
b = 47.18 | β = 90 |
c = 80.04 | γ = 90 |
Symmetry | |
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Space Group | P 41 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 | 100 | CCD | ADSC QUANTUM 4 | M | MAD |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | APS BEAMLINE 14-BM-D | 0.92 | APS | 14-BM-D |
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 | 1.4 | 20 | 99.3 | 0.083 | 22 | 9 | 33934 |
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-Work | R-Free | Mean Isotropic B | |||||||||
X-RAY DIFFRACTION | MAD | 1.4 | 20 | 2 | 33271 | 3228 | 97.8 | 0.212 | 0.234 |
Temperature Factor Modeling | ||||||
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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 | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | |
Nucleic Acid Atoms | 748 |
Solvent Atoms | 146 |
Heterogen Atoms | 10 |
Software
Software | |
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Software Name | Purpose |
SCALEPACK | data scaling |
MLPHARE | phasing |
CNS | refinement |