5E40
3-Deoxy-D-arabino-heptulosonate 7-phosphate synthase from Mycobacterium tuberculosis with D-tyrosine bound in the phenylalanine binding site
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 3NV8 | PDB entry 3NV8 |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 7.5 | 298 | 0.1 M Tris-HCl, pH 7.5, 1.5 M ammonium sulfate, 12% v/v glycerol. For soaking, 0.2 microliters of a 10 mM D-Tyr stock solution was added to equilibrated 2 microliter droplets at 48 hours and 24 hours before crystal freezing, respectively |
Crystal Properties | |
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Matthews coefficient | Solvent content |
4 | 69.28 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 205.451 | α = 90 |
b = 205.451 | β = 90 |
c = 66.803 | γ = 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 210r | 2012-07-04 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | AUSTRALIAN SYNCHROTRON BEAMLINE MX1 | 0.9537 | Australian Synchrotron | MX1 |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Rpim I (All) | CC (Half) | 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 | 2.05 | 19.85 | 99.9 | 0.143 | 0.056 | 0.997 | 11.8 | 7.5 | 101083 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Rpim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||
1 | 2.05 | 2.09 | 100 | 1.026 | 0.398 | 0.608 | 2.1 | 7.5 | 5007 |
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 3NV8 | 2.05 | 19.85 | 96017 | 5046 | 99.86 | 0.1948 | 0.1941 | 0.207 | RANDOM | 27.469 |
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] | |
2.44 | 2.44 | -4.88 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 34.373 |
r_dihedral_angle_4_deg | 15.924 |
r_dihedral_angle_3_deg | 12.761 |
r_dihedral_angle_1_deg | 5.242 |
r_mcangle_it | 2.339 |
r_mcbond_it | 1.279 |
r_mcbond_other | 1.279 |
r_angle_refined_deg | 1.155 |
r_angle_other_deg | 0.806 |
r_chiral_restr | 0.061 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 7045 |
Nucleic Acid Atoms | |
Solvent Atoms | 537 |
Heterogen Atoms | 54 |
Software
Software | |
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Software Name | Purpose |
Aimless | data scaling |
REFMAC | refinement |
PDB_EXTRACT | data extraction |
XDS | data reduction |
MOLREP | phasing |