XFEL structure of Mycobacterium tuberculosis beta lactamase microcrystals
Serial Crystallography (SX)
Starting Model(s)
| Initial Refinement Model(s) |
|---|
| Type | Source | Accession Code | Details |
|---|
|
experimental model | PDB | 6B5X | |
Crystallization
| Crystalization Experiments |
|---|
| ID | Method | pH | Temperature | Details |
|---|
| 1 | BATCH MODE | | 293 | 2.4 M ammonium phosphate |
| Crystal Properties |
|---|
| Matthews coefficient | Solvent content |
|---|
| 3.62 | 65.99 |
Crystal Data
| Unit Cell |
|---|
| Length ( Å ) | Angle ( ˚ ) |
|---|
| a = 79.64 | α = 90 |
| b = 98.09 | β = 108.45 |
| c = 110.88 | γ = 90 |
| Symmetry |
|---|
| Space Group | P 1 21 1 |
|---|
Diffraction
| Diffraction Experiment |
|---|
| ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol |
|---|
| 1 | 1 | x-ray | 293 | PIXEL | SLAC ePix10k 2M | | 2020-10-11 | M | SINGLE WAVELENGTH |
| Radiation Source |
|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
|---|
| 1 | FREE ELECTRON LASER | SLAC LCLS BEAMLINE MFX | 1.26 | SLAC LCLS | MFX |
Serial Crystallography
| Sample delivery method |
|---|
| Diffraction ID | Description | Sample Delivery Method |
|---|
| 1 | | injection |
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 | 2.2 | 22.14 | 100 | 0.23 | 4.38 | 453 | | 83447 | | | 53.27 |
| Highest Resolution Shell |
|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) |
|---|
| 1 | 2.2 | 2.3 | | | 0.3 | | | |
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 | FREE R-VALUE | 6b5x | 2.2 | 22.14 | 1.33 | 68622 | 3459 | 83.57 | 0.2216 | 0.2195 | 0.22 | 0.2605 | 0.26 | 53.32 |
| 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 | 14.2645 |
| f_angle_d | 1.0233 |
| f_chiral_restr | 0.058 |
| f_plane_restr | 0.009 |
| f_bond_d | 0.0084 |
| Non-Hydrogen Atoms Used in Refinement |
|---|
| Non-Hydrogen Atoms | Number |
|---|
| Protein Atoms | 7952 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 511 |
| Heterogen Atoms | 20 |
Software
| Software |
|---|
| Software Name | Purpose |
|---|
| PHENIX | refinement |
| CrystFEL | data reduction |
| CrystFEL | data scaling |
| PHASER | phasing |