Crystal structure of acetate:succinate CoA transferase (ASCT) from Trypanosoma brucei.
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details | 
| experimental model | PDB | 3DLX | |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details | 
| 1 | VAPOR DIFFUSION, HANGING DROP | 7.4 | 293 | 0.05M HEPES-NaOH buffer pH 7.4, 18% (w/v) PEG 3350, 0.35M CaCl2 | 
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content | 
| 2.22 | 44.71 | 
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) | 
| a = 59.886 | α = 90 | 
| b = 164.635 | β = 90 | 
| c = 187.573 | 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 | PIXEL | DECTRIS PILATUS 2M-F | 2019-05-25 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline | 
| 1 | SYNCHROTRON | PHOTON FACTORY BEAMLINE AR-NE3A | 1.00000 | Photon Factory | AR-NE3A | 
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | 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 | 2.01 | 50 | 98.7 | 0.107 | 0.996 | 11.3 | 5.2 | 123547 | 31.4 | ||||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||
| 1 | 2.01 | 2.13 | 97.3 | 0.564 | 0.698 | 2.5 | |||||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | 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 | 3DLX | 2.01 | 19.97 | 116411 | 6345 | 98.78 | 0.22797 | 0.22517 | 0.23 | 0.27867 | 0.28 | RANDOM | 32.452 | ||||
| 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] | |
| 0.1 | 0.03 | -0.13 | ||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation | 
| r_dihedral_angle_2_deg | 38.529 | 
| r_dihedral_angle_3_deg | 18.059 | 
| r_dihedral_angle_4_deg | 16.399 | 
| r_dihedral_angle_1_deg | 7.492 | 
| r_long_range_B_refined | 4.3 | 
| r_long_range_B_other | 4.3 | 
| r_mcangle_it | 2.547 | 
| r_mcangle_other | 2.547 | 
| r_scangle_other | 2.529 | 
| r_mcbond_it | 1.594 | 
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number | 
| Protein Atoms | 14070 | 
| Nucleic Acid Atoms | |
| Solvent Atoms | 370 | 
| Heterogen Atoms | 16 | 
Software
| Software | |
|---|---|
| Software Name | Purpose | 
| REFMAC | refinement | 
| XDS | data reduction | 
| XDS | data scaling | 
| MOLREP | phasing | 














