5ONW
X-Ray crystal structure of a nucleosome core particle with its DNA site-specifically crosslinked to the histone octamer and the two H2A/H2B dimers crosslinked via H2A N38C
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 6 | 295 | Sample was mixed in a 1:1 ratio with 10 mM Na-cacodylate, pH 6.0, 160-210 mM MnCl2, 140-200 mM KCl and equilibrated against a 1:4 dilution of the same solution |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.69 | 54.34 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 106.56 | α = 90 |
b = 183.83 | β = 90 |
c = 109.49 | 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 | 90 | PIXEL | DECTRIS PILATUS 2M-F | 2016-06-05 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | SLS BEAMLINE X06DA | 1 | SLS | X06DA |
Data Collection
Overall | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 | 2.8 | 29.505 | 98.4 | 0.062 | 13.9 | 3.6 | 52834 |
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 | 2.8 | 2.85 | 93.7 | 0.328 | 2.8 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 | R-Free Selection Details | Mean Isotropic B | |||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | FREE R-VALUE | 1kx5 | 2.8 | 29.505 | 1.34 | 52757 | 2661 | 98.34 | 0.21 | 0.2076 | 0.2544 | random |
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 | 31.892 |
f_angle_d | 0.713 |
f_plane_restr | 0.05 |
f_chiral_restr | 0.04 |
f_bond_d | 0.005 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 5956 |
Nucleic Acid Atoms | 6027 |
Solvent Atoms | 62 |
Heterogen Atoms | 24 |
Software
Software | |
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Software Name | Purpose |
PHENIX | refinement |
XDS | data reduction |
SCALA | data scaling |
PHASER | phasing |