3P4C
Alternatingly modified 2'Fluoro RNA octamer f/rA2U2-R32
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 6 | 291 | Sodium cacodylate (40 mM, pH 6.0), lithium chloride (40 mM), strontium chloride (80 mM), spermine tetrahydrochloride (12 mM), and 2-methyl-2,4-pentanediol (MPD; 10% (v/v)), equilibrated against a reservoir of MPD (1 mL, 35%) , VAPOR DIFFUSION, HANGING DROP, temperature 291K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
1.83 | 32.77 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 40.55 | α = 90 |
b = 40.55 | β = 90 |
c = 117.222 | γ = 120 |
Symmetry | |
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Space Group | H 3 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 | MARMOSAIC 300 mm CCD | 2008-11-16 | M | SAD |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | APS BEAMLINE 21-ID-D | 0.7687 | APS | 21-ID-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 | 1.15 | 50 | 97.9 | 0.095 | 50.1 | 15.1 | 13629 | 13343 |
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) | |||||||||||
1.15 | 1.17 | 72.9 | 0.408 | 2.43 | 3.8 | 489 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Resolution (High) | Resolution (Low) | Number Reflections (All) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work | R-Free | Mean Isotropic B | ||||||||
X-RAY DIFFRACTION | SAD | 1.15 | 50 | 13343 | 13314 | 666 | 99.8 | 0.182 | 0.182 | 0.249 |
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] | |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
s_angle_d | 0.027 |
s_bond_d | 0.01 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | |
Nucleic Acid Atoms | 334 |
Solvent Atoms | 93 |
Heterogen Atoms | 3 |
Software
Software | |
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Software Name | Purpose |
MAR345dtb | data collection |
HKL2Map | model building |
SHELXL | refinement |
HKL-2000 | data reduction |
HKL-2000 | data scaling |
HKL2Map | phasing |
SHELXL-97 | refinement |