1C8V
CRYSTAL STRUCTURE OF THE COMPLEX OF BACTERIAL TRYPTOPHAN SYNTHASE WITH THE TRANSITION STATE ANALOGUE INHIBITOR 4-(2-HYDROXYPHENYLTHIO)-BUTYLPHOSPHONIC ACID
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 7.8 | 295 | 12% PEG 4000, 0.75mM spermine, 50mM sodium bicine, 1mM EDTA, 5mM DTT, pH 7.8, VAPOR DIFFUSION, HANGING DROP, temperature 295K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.65 | 53.51 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 183.8 | α = 90 |
b = 60.77 | β = 94.38 |
c = 68.15 | γ = 90 |
Symmetry | |
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Space Group | C 1 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 | 140 | IMAGE PLATE | RIGAKU RAXIS IIC | 1997-06-27 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | ROTATING ANODE | RIGAKU RU200 |
Data Collection
Overall | |||||||||||||||||||
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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 | 2.2 | 45.2 | 93.5 | 0.077 | 10.35 | 3.3 | 35708 | 35708 | 10.45 |
Highest Resolution Shell | |||||||||||||||||||
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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 | 2.2 | 2.3 | 79 | 0.241 | 2.3 | 2906 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | Number Reflections (All) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (All) | R-Factor (Observed) | R-Work (Depositor) | R-Work (DCC) | R-Free (Depositor) | R-Free (DCC) | R-Free Selection Details | Mean Isotropic B | |||
X-RAY DIFFRACTION | 2.2 | 30 | 2 | 35708 | 35371 | 3518 | 92.6 | 0.212 | 0.212 | 0.208 | 0.2 | 0.268 | 0.26 | RANDOM |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
x_dihedral_angle_d | 24.64 |
x_angle_deg | 1.8 |
x_improper_angle_d | 1.53 |
x_bond_d | 0.01 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 4926 |
Nucleic Acid Atoms | |
Solvent Atoms | 160 |
Heterogen Atoms | 32 |
Software
Software | |
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Software Name | Purpose |
DENZO | data reduction |
TRUNCATE | data reduction |
X-PLOR | model building |
X-PLOR | refinement |
CCP4 | data scaling |
X-PLOR | phasing |