2RHG
Tryptophan synthase complexed with IGP, pH 7.0, internal aldimine
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 7 | 293 | Protein: 50 mM Bicine pH 7.8, 10 mM Na-EDTA, 1 mM DTE, 20 uM PLP. Reservoir: 50 mM Bicine pH 7.8, 5 mM DTE, 5 mM Na-EDTA, 0.1 M PLP, 2 mM spermine, 2 mM NaN3, 8-12% PEG8000. Crystal soaked in 15% PEG8000, 20% glycerol, 23 mM IGP, pH controlled at pH 9.0 before flash-cooling, VAPOR DIFFUSION, HANGING DROP, temperature 293K, pH 7.0 |
Crystal Properties | |
---|---|
Matthews coefficient | Solvent content |
2.57 | 52.16 |
Crystal Data
Unit Cell | |
---|---|
Length ( Å ) | Angle ( ˚ ) |
a = 183.654 | α = 90 |
b = 59.573 | β = 94.71 |
c = 67.547 | γ = 90 |
Symmetry | |
---|---|
Space Group | C 1 2 1 |
Diffraction
Diffraction Experiment | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 | 1999-12-14 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | EMBL/DESY, HAMBURG BEAMLINE BW7B | EMBL/DESY, Hamburg | BW7B |
Data Collection
Overall | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 | 1.9 | 50 | 69.8 | 0.062 | 10.8 | 2 | 76750 | 76750 | -3 | 15.2 |
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) | |||||||||||
1 | 1.9 | 1.95 | 74.3 | 0.175 | 4.5 | 1.5 | 3174 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Cross Validation method | 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 | FOURIER SYNTHESIS | THROUGHOUT | 2 | 19.99 | 40137 | 1693 | 68.6 | 0.212 | 0.212 | 0.239 | RANDOM | 26.5 |
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] | |
-5.63 | -1.49 | 11.06 | -5.43 |
RMS Deviations | |
---|---|
Key | Refinement Restraint Deviation |
c_dihedral_angle_d | 22 |
c_angle_deg | 1.2 |
c_improper_angle_d | 0.81 |
c_bond_d | 0.007 |
Non-Hydrogen Atoms Used in Refinement | |
---|---|
Non-Hydrogen Atoms | Number |
Protein Atoms | 4593 |
Nucleic Acid Atoms | |
Solvent Atoms | 273 |
Heterogen Atoms | 35 |
Software
Software | |
---|---|
Software Name | Purpose |
CNS | refinement |
MAR345dtb | data collection |
XDS | data reduction |
XSCALE | data scaling |
CNS | phasing |