8FV7
E coli. CTP synthase in complex with dF-dCTP + ATP
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 5TKV |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 8 | 277 | 0.1 M TRIS-Cl pH 8.0 (room temperature), 5 mM magnesium chloride, 1.15 - 1.4 M ammonium sulfate, 15 mg/mL CTPS. |
Crystal Properties | |
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Matthews coefficient | Solvent content |
4.54 | 72.94 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 158.982 | α = 90 |
b = 108.456 | β = 90 |
c = 128.9 | γ = 90 |
Symmetry | |
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Space Group | P 21 21 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 | CCD | RAYONIX MX-300 | 2021-12-08 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | CLSI BEAMLINE 08B1-1 | 1.6532 | CLSI | 08B1-1 |
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) | 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 | 2.08 | 83.126 | 100 | 0.135 | 0.141 | 0.04 | 0.994 | 12.4 | 12.5 | 133846 | 35.3 |
Highest Resolution Shell | |||||||||||||||||||
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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 | 2.08 | 2.15 | 100 | 1.862 | 1.944 | 0.556 | 0.684 | 0.8 | 12 |
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 (All) | R-Work | R-Free | Mean Isotropic B | |||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | FREE R-VALUE | 5TKV | 2.08 | 83.126 | 133740 | 6615 | 99.81 | 0.204 | 0.203 | 0.2215 | 39.846 |
Temperature Factor Modeling | ||||||
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Anisotropic B[1][1] | Anisotropic B[1][2] | Anisotropic B[1][3] | Anisotropic B[2][2] | Anisotropic B[2][3] | Anisotropic B[3][3] | |
-1.406 | 2.187 | -0.781 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 32.235 |
r_dihedral_angle_4_deg | 13.454 |
r_dihedral_angle_3_deg | 12.6 |
r_dihedral_angle_1_deg | 5.727 |
r_lrange_it | 4.713 |
r_lrange_other | 4.498 |
r_scangle_it | 2.347 |
r_scangle_other | 2.347 |
r_mcangle_it | 2.344 |
r_mcangle_other | 2.344 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 8334 |
Nucleic Acid Atoms | |
Solvent Atoms | 659 |
Heterogen Atoms | 126 |
Software
Software | |
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Software Name | Purpose |
REFMAC | refinement |
HKL-2000 | data reduction |
HKL-2000 | data scaling |
MOLREP | phasing |