3T44
Crystal structure of Mycobacterium tuberculosis Indole Glycerol Phosphate Synthase (IGPS) in complex with indole glycerol phosphate (IGP) amd anthranilate
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
---|---|---|---|
Type | Source | Accession Code | Details |
experimental model | PDB | 1IGS | PDB entry 1IGS |
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 4.5 | 298 | 0.1M Sodium acetate trihydrate, 2.0 ammonium sulfate, pH 4.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K |
Crystal Properties | |
---|---|
Matthews coefficient | Solvent content |
1.92 | 35.86 |
Crystal Data
Unit Cell | |
---|---|
Length ( ? ) | Angle ( ? ) |
a = 46.553 | ¦Á = 90 |
b = 53.222 | ¦Â = 90 |
c = 86.855 | ¦Ã = 90 |
Symmetry | |
---|---|
Space Group | P 21 21 21 |
Diffraction
Diffraction Experiment | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 100 | CCD | ADSC QUANTUM 315 | mirrors | 2009-08-02 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | APS BEAMLINE 19-ID | 0.9771 | APS | 19-ID |
Data Collection
Overall | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (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 | 1.6 | 50 | 99.8 | 0.112 | 0.112 | 10 | 7.1 | 28784 | 28784 | 14.5 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | R-Sym I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||
1 | 1.6 | 1.63 | 100 | 0.454 | 0.454 | 5.48 | 7.2 | 1390 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 1IGS | 1.6 | 26.61 | 28717 | 1464 | 98.68 | 0.1505 | 0.1482 | 0.195 | RANDOM | 20.7094 |
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] | |
0.1 | -0.04 | -0.07 |
RMS Deviations | |
---|---|
Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 34.822 |
r_dihedral_angle_4_deg | 16.761 |
r_dihedral_angle_3_deg | 11.33 |
r_dihedral_angle_1_deg | 4.859 |
r_scangle_it | 3.607 |
r_scbond_it | 2.519 |
r_mcangle_it | 1.516 |
r_angle_refined_deg | 1.287 |
r_mcbond_it | 1.026 |
r_angle_other_deg | 0.889 |
Non-Hydrogen Atoms Used in Refinement | |
---|---|
Non-Hydrogen Atoms | Number |
Protein Atoms | 1849 |
Nucleic Acid Atoms | |
Solvent Atoms | 292 |
Heterogen Atoms | 29 |
Software
Software | |
---|---|
Software Name | Purpose |
DENZO | data reduction |
SCALEPACK | data scaling |
PHASER | phasing |
REFMAC | refinement |
PDB_EXTRACT | data extraction |
HKL-2000 | data collection |