Crystal structure of Mycobacterium tuberculosis dethiobiotin synthetase in complex with cytidine triphosphate solved by precipitant-ligand exchange (crystals grown in citrate 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 | 7 | 289.15 | 0.7 M NaCitrate, 0.1 M Imidazole pH 7.0 with 20% glycerol | 
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content | 
| 2.44 | 49.69 | 
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) | 
| a = 56.68 | α = 90 | 
| b = 105.7 | β = 90 | 
| c = 153.26 | 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 | 56.68 | 99.7 | 0.432 | 0.449 | 0.122 | 0.99 | 7.1 | 13.1 | 32594 | 41.77 | ||||||||
| 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 | 98.7 | 3.646 | 3.796 | 1.041 | 0.42 | 12.9 | |||||||||||
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 | 49.963 | 0.32 | 32437 | 1639 | 99.28 | 0.2203 | 0.2167 | 0.22 | 0.288 | 0.29 | 53.4035 | ||||
| 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 | 20.888 | 
| f_angle_d | 1.301 | 
| f_chiral_restr | 0.071 | 
| 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 | 319 | 
| Heterogen Atoms | 120 | 
Software
| Software | |
|---|---|
| Software Name | Purpose | 
| MOSFLM | data reduction | 
| Aimless | data scaling | 
| PHASER | phasing | 
| PHENIX | refinement | 
| PDB_EXTRACT | data extraction | 














