7OZZ
The crystal structure of a DNA:RNA hybrid duplex sequence CTTTTCTTTG with LNA-amide modification
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 7NRP |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 7 | 298 | Drop solution 0.5 mM duplex, 40 mM Sodium chloride, 6.0 mM Potassium chloride, 20 mM Sodium cacodylate trihydrate pH 7.0, 17.5% (v/v) MPD, 6.0 mM Spermine tetrahydrochloride, Well solution, Component concentrations are double the concentration of the drop solution and do not contain the oligonucleotide duplex |
Crystal Properties | |
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Matthews coefficient | Solvent content |
3.32 | 62.95 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 54.12 | α = 90 |
b = 54.12 | β = 90 |
c = 48.84 | γ = 120 |
Symmetry | |
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Space Group | P 61 |
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 | PIXEL | DECTRIS PILATUS 6M | 2018-11-03 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | PETRA III, EMBL c/o DESY BEAMLINE P13 (MX1) | 0.9762 | PETRA III, EMBL c/o DESY | P13 (MX1) |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | CC (Half) | 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 | 2.7 | 27.06 | 99.9 | 0.999 | 23 | 9.7 | 2283 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
1 | 2.7 | 2.77 | 0.421 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | 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 | MOLECULAR REPLACEMENT | FREE R-VALUE | 7NRP | 2.7 | 27.06 | 1.35 | 2267 | 137 | 99.78 | 0.2029 | 0.2003 | 0.2367 |
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 |
f_dihedral_angle_d | 15.35 |
f_angle_d | 1.541 |
f_chiral_restr | 0.067 |
f_bond_d | 0.007 |
f_plane_restr | 0.004 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | |
Nucleic Acid Atoms | 415 |
Solvent Atoms | |
Heterogen Atoms | 1 |
Software
Software | |
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Software Name | Purpose |
PHENIX | refinement |
xia2 | data reduction |
Aimless | data scaling |
PHASER | phasing |