7ECH
Crystal Structure of d(G4C2)2-K in F222 space group
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | EVAPORATION | 6.5 | 289 | 50 mM Sodium Cacodylate trihydrate pH 6.0, 45% MPD, 12 mM spermine tetrahydrochloride, 80 mM KCl and 20 mM MgCl2 with the same reservoir buffer |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.15 | 42.68 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 57.216 | α = 90 |
b = 61.059 | β = 90 |
c = 110.427 | γ = 90 |
Symmetry | |
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Space Group | F 2 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 | PIXEL | DECTRIS EIGER X 16M | 2018-11-19 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | SSRF BEAMLINE BL17U | 0.97911 | SSRF | BL17U |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim I (All) | 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 | 2.38 | 50 | 97.8 | 0.084 | 0.089 | 0.028 | 12.5 | 10.4 | 3951 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||
1 | 2.38 | 2.42 | 91.4 | 0.455 | 0.48 | 0.147 | 0.95 | 8.4 |
Refinement
Statistics | |||||||||||||||||||
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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 | MOLECULAR REPLACEMENT | THROUGHOUT | 7ECG | 2.38 | 39.08 | 3734 | 217 | 97.75 | 0.2169 | 0.2149 | 0.2598 | RANDOM | 72.272 |
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] | |
7.07 | -3.1 | -3.97 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_angle_other_deg | 1.598 |
r_angle_refined_deg | 1.429 |
r_chiral_restr | 0.114 |
r_gen_planes_refined | 0.015 |
r_bond_refined_d | 0.008 |
r_bond_other_d | 0.003 |
r_gen_planes_other | 0.003 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | |
Nucleic Acid Atoms | 747 |
Solvent Atoms | 6 |
Heterogen Atoms | 8 |
Software
Software | |
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Software Name | Purpose |
HKL-2000 | data scaling |
REFMAC | refinement |
PDB_EXTRACT | data extraction |
HKL-2000 | data reduction |
PHASER | phasing |