Crystal structure of Pseudomonas 7A Glutaminase-Asparaginase in complex with L-Asp at pH 4.5
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details | 
| experimental model | PDB | 4PGA | PDB entry 4PGA | 
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details | 
| 1 | VAPOR DIFFUSION, HANGING DROP | 4.5 | 293 | 0.1 M sodium acetate, pH 4.5, 25% w/v PEG3350 | 
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content | 
| 2.19 | 43.83 | 
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) | 
| a = 80.728 | α = 90 | 
| b = 80.728 | β = 90 | 
| c = 176.401 | γ = 120 | 
| Symmetry | |
|---|---|
| Space Group | P 31 | 
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 | 2019-08-09 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline | 
| 1 | SYNCHROTRON | APS BEAMLINE 22-ID | 1.0 | APS | 22-ID | 
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | 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 | 2.13 | 39.4 | 97.2 | 0.061 | 0.028 | 0.995 | 27.3 | 5.7 | 71715 | ||||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Rpim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||
| 1 | 2.13 | 2.18 | 48.4 | 0.267 | 0.127 | 0.941 | 5.6 | 5.1 | |||||||||||
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 | PDB entry 4PGA | 2.13 | 39.38 | 68787 | 2783 | 99.41 | 0.144 | 0.1418 | 0.15 | 0.1982 | 0.2 | RANDOM | 25.673 | ||||
| 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] | |
| 0.08 | 0.04 | 0.08 | -0.25 | |||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation | 
| r_dihedral_angle_2_deg | 36.415 | 
| r_dihedral_angle_4_deg | 16.977 | 
| r_dihedral_angle_3_deg | 15.092 | 
| r_dihedral_angle_1_deg | 7.428 | 
| r_angle_refined_deg | 2.183 | 
| r_angle_other_deg | 1.562 | 
| r_chiral_restr | 0.113 | 
| r_bond_refined_d | 0.019 | 
| r_gen_planes_refined | 0.014 | 
| r_gen_planes_other | 0.002 | 
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number | 
| Protein Atoms | 9593 | 
| Nucleic Acid Atoms | |
| Solvent Atoms | 870 | 
| Heterogen Atoms | 36 | 
Software
| Software | |
|---|---|
| Software Name | Purpose | 
| REFMAC | refinement | 
| PDB_EXTRACT | data extraction | 
| HKL-3000 | data reduction | 
| HKL-3000 | data scaling | 
| PHASER | phasing | 














