2DZT
Structure of mutant tryptophan synthase alpha-subunit (D110A) from a hyperthermophile, Pyrococcus furiosus
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 6.5 | 283 | 0.1M MES-NAOH, 10-15% PEG 20000, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 283K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.15 | 42.75 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 73.116 | α = 90 |
b = 77.645 | β = 90 |
c = 166.543 | γ = 90 |
Symmetry | |
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Space Group | C 2 2 21 |
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 | MAR CCD 165 mm | mirror | 2001-05-16 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | SPRING-8 BEAMLINE BL41XU | 1.0 | SPring-8 | BL41XU |
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 | 50 | 93.2 | 0.036 | 46.6 | 5.27 | 22853 | 22853 | 30.6 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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) | |||||||||||
2.2 | 2.28 | 73.7 | 0.123 | 11.7 | 5.27 | 1788 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Number Reflections (All) | 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 | 1GEQ | 2.4 | 19.94 | 18572 | 18472 | 907 | 97.7 | 0.182 | 0.182 | 0.264 | RANDOM | 27 |
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] | |
-1.53 | 1.3 | 0.22 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
c_dihedral_angle_d | 21.8 |
c_scangle_it | 4.58 |
c_scbond_it | 3.29 |
c_mcangle_it | 2.97 |
c_mcbond_it | 2.04 |
c_angle_deg | 1.4 |
c_improper_angle_d | 0.76 |
c_bond_d | 0.008 |
c_bond_d_na | |
c_bond_d_prot |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 3831 |
Nucleic Acid Atoms | |
Solvent Atoms | 628 |
Heterogen Atoms |
Software
Software | |
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Software Name | Purpose |
CNS | refinement |
MAR345dtb | data collection |
HKL-2000 | data reduction |
HKL-2000 | data scaling |
CNS | phasing |