6GTH
Serial Femtosecond Crystallography at Megahertz pulse rates
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 5TWD |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | BATCH MODE | 293 | CTX-M-14 microcrystals for SFX were produced using a seeding approach. Crystals were grown by sitting drop vapor diffusion at 290 overnight mixing 1 microliter CTX-M-14 at 20 mg ml-1 and 1 microliter precipitant (40 % PEG8000, 200 mM lithium sulfate, 100 mM sodium acetate). Obtained crystals (space group P212121) were crushed and a seed stock was prepared. To obtain microcrystals the undiluted seedstock was used for batch crystallization setups by mixing volumes of 50 % CTX-M-14 with 10 % undiluted seed stock and 40 % precipitant solution. |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.13 | 42.29 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 41.84 | α = 90 |
b = 41.84 | β = 90 |
c = 233.28 | γ = 120 |
Symmetry | |
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Space Group | P 32 2 1 |
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 | 290 | PIXEL | AGIPD | 2018-04-01 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | FREE ELECTRON LASER | EUROPEAN XFEL BEAMLINE SPB/SFX | 1.33 | European XFEL | SPB/SFX |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Split (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 | 1.69 | 34.603 | 99.89 | 0.197 | 4.37 | 65.99 | 27838 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Split (All) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
1 | 1.69 | 1.75 | 0.476 |
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 | THROUGHOUT | 5TWD | 1.69 | 34.603 | 1.34 | 27838 | 2037 | 99.9 | 0.1785 | 0.176 | 0.2096 | 25.55 |
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 | 12.307 |
f_angle_d | 1.223 |
f_chiral_restr | 0.043 |
f_bond_d | 0.008 |
f_plane_restr | 0.006 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 1941 |
Nucleic Acid Atoms | |
Solvent Atoms | 200 |
Heterogen Atoms | 28 |
Software
Software | |
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Software Name | Purpose |
PHENIX | refinement |
PDB_EXTRACT | data extraction |
CrystFEL | data reduction |
CrystFEL | data scaling |
PHASER | phasing |
Cheetah | data collection |