Crystal structure of Mycobacterium tuberculosis dethiobiotin synthetase in complex with cytidine triphosphate solved by precipitant-ligand exchange (crystals grown in sulfate precipitant)
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details | 
| experimental model | PDB | 6CVE | |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details | 
| 1 | VAPOR DIFFUSION, HANGING DROP | 8 | 289.15 | 1.2 - 1.7 M ammonium sulfate, 0.1 M Tris pH 8 and 10 - 15% glycerol. | 
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content | 
| 2.38 | 48.43 | 
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) | 
| a = 55.33 | α = 90 | 
| b = 105.29 | β = 90 | 
| c = 153.76 | γ = 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 210r | 2018-06-28 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline | 
| 1 | SYNCHROTRON | LNLS BEAMLINE D03B-MX1 | 0.9537 | LNLS | D03B-MX1 | 
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | 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 | 2.5 | 52.65 | 99.5 | 0.352 | 0.367 | 0.102 | 0.989 | 7.1 | 12.4 | 31792 | 36.7 | ||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||
| 1 | 2.5 | 2.6 | 97.5 | 2.194 | 2.293 | 0.653 | 0.64 | 11.5 | |||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work (Depositor) | R-Work (DCC) | R-Free (Depositor) | R-Free (DCC) | Mean Isotropic B | ||||
| X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | 6CVE | 2.5 | 48.979 | 0.31 | 31656 | 1603 | 99.23 | 0.2139 | 0.2101 | 0.21 | 0.2852 | 0.29 | 40.5339 | ||||
| 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] | |
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation | 
| f_dihedral_angle_d | 20.546 | 
| f_angle_d | 1.248 | 
| f_chiral_restr | 0.066 | 
| f_plane_restr | 0.01 | 
| f_bond_d | 0.009 | 
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number | 
| Protein Atoms | 6277 | 
| Nucleic Acid Atoms | |
| Solvent Atoms | 377 | 
| Heterogen Atoms | 120 | 
Software
| Software | |
|---|---|
| Software Name | Purpose | 
| MOSFLM | data reduction | 
| Aimless | data scaling | 
| PHASER | phasing | 
| PHENIX | refinement | 
| PDB_EXTRACT | data extraction | 














