1K7E
CRYSTAL STRUCTURE OF WILD-TYPE TRYPTOPHAN SYNTHASE COMPLEXED WITH N-[1H-INDOL-3-YL-ACETYL]GLYCINE ACID
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | 7.8 | PEG 8000, pH 7.80 |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.48 | 50 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 182.651 | α = 90 |
b = 59.081 | β = 94.55 |
c = 67.3 | 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 | 100 | IMAGE PLATE | MAR scanner 345 mm plate | PREMIRROR, BENT MIRROR | 2000-08-10 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | EMBL/DESY, HAMBURG BEAMLINE BW7B | EMBL/DESY, HAMBURG | BW7B |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Sym 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 | 2.3 | 35 | 91 | 0.058 | 11.3 | 3.26 | -3 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R-Sym I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
1 | 2.3 | 2.4 | 88.7 | 0.183 | 2.2 |
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 | 1QOP | 2.3 | 20 | 27663 | 91 | 0.171 | 0.167 | 0.244 | RANDOM | 20.513 |
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] | |
-1.3 | 0.15 | 2.54 | -1.22 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
p_scangle_it | 8.873 |
p_scbond_it | 6.423 |
p_mcangle_it | 3.772 |
p_mcbond_it | 2.553 |
p_singtor_nbd | 0.274 |
p_chiral_restr | 0.25 |
p_xyhbond_nbd | 0.169 |
p_bond_d | 0.051 |
p_angle_d | |
p_angle_deg |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 4943 |
Nucleic Acid Atoms | |
Solvent Atoms | 237 |
Heterogen Atoms | 33 |
Software
Software | |
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Software Name | Purpose |
CNS | refinement |
REFMAC | refinement |
XDS | data reduction |
XSCALE | data scaling |
CNS | phasing |