Mycobacterium tuberculosis Small RNA-Binding protein (SRB)
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 298 | 0.1 M sodium acetate trihydrate pH 4.5, 3.0 M sodium chloride | |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.14 | 42.41 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 87.98 | α = 90.019 |
| b = 87.994 | β = 90.029 |
| c = 122.488 | γ = 90.03 |
| Symmetry | |
|---|---|
| Space Group | P 1 |
Diffraction
| Diffraction Experiment | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
| 1 | 1 | x-ray | 100 | PIXEL | DECTRIS EIGER X 9M | double crystal Si(111) monochromator | 2021-10-30 | M | SINGLE WAVELENGTH | |||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | NSLS-II BEAMLINE 17-ID-1 | 0.979338 | NSLS-II | 17-ID-1 |
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 | 2.615 | 41.4 | 99.7 | 0.228 | 0.247 | 0.096 | 0.993 | 4.9 | 6.3 | 110352 | 50.71 | ||||||||
| 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 | 2.615 | 2.66 | 96.6 | 1.629 | 1.806 | 0.762 | 0.366 | 1.1 | 5.1 | ||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Cross Validation method | 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 | FREE R-VALUE | 2.62 | 41.4 | 1.97 | 110352 | 5398 | 99.34 | 0.2783 | 0.2753 | 0.2734 | 0.3351 | 0.3355 | 70.52 | |||||
| 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 | 14.0762 |
| f_angle_d | 0.726 |
| f_chiral_restr | 0.0535 |
| f_plane_restr | 0.006 |
| f_bond_d | 0.0039 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 22971 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 311 |
| Heterogen Atoms | |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| PHENIX | refinement |
| Coot | model building |
| BUCCANEER | model building |
| MoRDa | phasing |
| PHASER | phasing |
| Aimless | data scaling |
| pointless | data scaling |
| XDS | data reduction |
| autoPROC | data processing |














