Crystal structure of methionine gamma-lyase from Brevibacterium sandarakinum in complex with PLP and norleucine at pH 6.5
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 6.5 | 293 | Modified Morpheus I condition 2-4: 0.1 M Ethylene glycols, 0.08 M MES/Imidazole pH 6.5, 30% MPD, 10% PEG 1000, 10% PEG3350 and 5 mM Norleucine with 1 mM PLP Protein in starting drop: 7.4 mg ml-1 in 50 mM HEPES, pH 7.5, 100 mM NaCl, 0.5 mM TCEP, 1 mM PLP |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.3 | 46.4 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 132.574 | α = 90 |
| b = 229.734 | β = 90 |
| c = 155.174 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | C 2 2 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 | PIXEL | DECTRIS EIGER X 16M | 2022-04-22 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | SOLEIL BEAMLINE PROXIMA 1 | 0.978565 | SOLEIL | PROXIMA 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 | 2.492 | 114.867 | 89.3 | 0.3252 | 0.352 | 0.1319 | 0.983 | 4.27 | 6.66 | 34324 | |||||||||
| 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) | ||||||||
| 2.492 | 2.862 | 65.2 | 0.7805 | 0.8872 | 0.4111 | 0.707 | 1.56 | 4.32 | 1651 | ||||||||||
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 | MOLECULAR REPLACEMENT | THROUGHOUT | 2.492 | 114.867 | 34324 | 1706 | 41.5 | 0.2568 | 0.2552 | 0.2461 | 0.287 | 0.2729 | RANDOM | 56.19 | |||||
| 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] | |
| -1.3191 | -2.3053 | 3.6244 | ||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| t_other_torsion | 18.15 |
| t_omega_torsion | 1.84 |
| t_angle_deg | 0.72 |
| t_bond_d | 0.005 |
| t_dihedral_angle_d | |
| t_gen_planes | |
| t_it | |
| t_chiral_improper_torsion | |
| t_ideal_dist_contact | |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 16803 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 52 |
| Heterogen Atoms | 144 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| MxCuBE | data collection |
| autoPROC | data processing |
| autoPROC | data reduction |
| Aimless | data scaling |
| STARANISO | data scaling |
| PHASER | phasing |
| BUSTER | refinement |
| Coot | model building |














