Crystal structure of 7,8-diaminopelargonic acid synthase (BioA) from Mycobacterium tuberculosis, complexed with 7-(diethylamino)-3-(thiophene-2-carbonyl)-2H-chromen-2-one
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 7.5 | 293 | Protein: 25 mM HEPES, 50 mM NaCl, 0.1 mM TCEP Reservoir:10% PEG 8000, 0.1M magnesium chloride, 0.1M HEPES pH 7.5 Cryo: 15% PEG 400 in reservoir solution, VAPOR DIFFUSION, HANGING DROP, temperature 293K |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.32 | 46.98 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 63 | α = 90 |
| b = 66 | β = 90 |
| c = 204 | 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 | 193 | CCD | NOIR-1 | 2013-09-14 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | ALS BEAMLINE 4.2.2 | 1.0 | ALS | 4.2.2 |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge 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 | 1.8 | 63.08 | 90.5 | 0.076 | 19.8 | 6.6 | 72681 | 72681 | |||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Cross Validation method | Resolution (High) | Resolution (Low) | 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) | R-Free Selection Details | Mean Isotropic B | |||||
| X-RAY DIFFRACTION | THROUGHOUT | 1.9 | 63.08 | 65977 | 3324 | 96.41 | 0.1842 | 0.1822 | 0.18 | 0.2216 | 0.22 | RANDOM | 23.986 | ||||||
| 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] | |
| -0.26 | -0.28 | 0.54 | ||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 34.985 |
| r_dihedral_angle_4_deg | 14.266 |
| r_dihedral_angle_3_deg | 13.71 |
| r_dihedral_angle_1_deg | 5.617 |
| r_angle_refined_deg | 1.264 |
| r_chiral_restr | 0.078 |
| r_bond_refined_d | 0.007 |
| r_gen_planes_refined | 0.006 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 6412 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 738 |
| Heterogen Atoms | 109 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| Blu-Ice | data collection |
| d*TREK | data reduction |
| REFMAC | refinement |
| PDB_EXTRACT | data extraction |
| d*TREK | data scaling |
| d*TREK | data reduction |
| d*TREK | data scaling |














