6QT6
Radiation damage study on a 16mer DNA segment, structure at 29.2 MGy dose
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 6QT1 |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 8.6 | 292 | 2 microliter 1.5 mM DNA solution (5mM HEPES pH 6.6) plus 2 microliter 10 mM HEPES pH 6.6 plus 4 microliter reservoir solution, against a reservoir of 1 ml 34% PEG200, 600 mM CaCl2 and 10 mM HEPES pH 8.6 |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.18 | 43.63 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 36.965 | α = 90 |
b = 36.965 | β = 90 |
c = 162.571 | 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 | PIXEL | DECTRIS PILATUS3 6M | 2018-10-22 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | DIAMOND BEAMLINE I24 | 0.9686 | Diamond | I24 |
Data Collection
Overall | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim I (All) | 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 | 1.8 | 31.43 | 92.3 | 0.136 | 0.167 | 0.095 | 0.983 | 1.8 | 3 | 3914 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim I (All) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||
1 | 1.8 | 1.85 | 57.7 | 116.648 | 143.064 | 81.297 | 2.6 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | 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 | FOURIER SYNTHESIS | THROUGHOUT | 6QT1 | 1.8 | 31.43 | 3721 | 188 | 91.25 | 0.2749 | 0.2704 | 0.3693 | RANDOM | 57.745 |
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] | |
0.79 | 0.4 | 0.79 | -2.58 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_angle_other_deg | 1.654 |
r_angle_refined_deg | 1.54 |
r_chiral_restr | 0.093 |
r_gen_planes_refined | 0.016 |
r_bond_refined_d | 0.007 |
r_bond_other_d | 0.002 |
r_gen_planes_other | 0.002 |
Non-Hydrogen Atoms Used in Refinement | |
---|---|
Non-Hydrogen Atoms | Number |
Protein Atoms | |
Nucleic Acid Atoms | 325 |
Solvent Atoms | 40 |
Heterogen Atoms | 6 |
Software
Software | |
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Software Name | Purpose |
Aimless | data scaling |
REFMAC | refinement |
PDB_EXTRACT | data extraction |
DIALS | data reduction |
MOLREP | phasing |