5EX4
3-deoxy-d-arabino-heptulosonate 7-phosphate synthase from Mycobacterium tuberculosis complexed with tryptophan in all three allosteric binding sites
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 2B7O | PDB entry 2B7O |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 7.5 | 293 | 0.1 M TRIS-HCL, PH 7.5, 1.5 M AMMONIUM SULFATE, 12% V/V GLYCEROL, 1 MILLIM L-TRYPTOPHAN |
Crystal Properties | |
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Matthews coefficient | Solvent content |
3.98 | 69.11 |
Crystal Data
Unit Cell | |
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Length ( ? ) | Angle ( ? ) |
a = 204.68 | ¦Á = 90 |
b = 204.68 | ¦Â = 90 |
c = 66.74 | ¦Ã = 120 |
Symmetry | |
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Space Group | P 32 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 | CCD | ADSC QUANTUM 315r | 2010-04-09 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | AUSTRALIAN SYNCHROTRON BEAMLINE MX2 | 0.935700 | Australian Synchrotron | MX2 |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Sym I (Observed) | Rrim I (All) | Rpim I (All) | 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 | 2.25 | 44.24 | 100 | 0.125 | 0.131 | 0.04 | 14.2 | 10.8 | 76066 | 76066 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | R-Sym I (Observed) | Rpim I (All) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||
1 | 2.25 | 2.37 | 100 | 0.372 | 0.372 | 0.12 | 2 | 10.5 | 11047 |
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 | PDB entry 2B7O | 2.25 | 44.24 | 72258 | 3788 | 99.99 | 0.1421 | 0.1406 | 0.1703 | RANDOM | 26.286 |
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] | |
0.39 | 0.39 | -0.79 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 35.364 |
r_dihedral_angle_4_deg | 17.413 |
r_dihedral_angle_3_deg | 13.415 |
r_dihedral_angle_1_deg | 5.944 |
r_mcangle_it | 4.641 |
r_mcbond_it | 3.15 |
r_mcbond_other | 3.147 |
r_angle_refined_deg | 1.376 |
r_angle_other_deg | 0.73 |
r_chiral_restr | 0.09 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 7088 |
Nucleic Acid Atoms | |
Solvent Atoms | 707 |
Heterogen Atoms | 128 |
Software
Software | |
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Software Name | Purpose |
SCALA | data scaling |
MOLREP | phasing |
REFMAC | refinement |
PDB_EXTRACT | data extraction |
iMOSFLM | data reduction |