X-ray structure of human glutamate carboxypeptidase II (GCPII) in complex with an inhibitor P18
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 8 | 293 | 34% (v/v) pentaerythritol propoxylate PO/OH 5/4 1 % (w/v) PEG 3350 100 mM Tris-HCl, pH 8.0 |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 3.32 | 62.92 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 101.686 | α = 90 |
| b = 130.248 | β = 90 |
| c = 159.501 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | I 2 2 2 |
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 | 2021-10-20 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | BESSY BEAMLINE 14.2 | 0.918 | BESSY | 14.2 |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Rrim 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 | 1.55 | 50.01 | 99.8 | 0.082 | 0.089 | 0.999 | 12.82 | 6.6 | 152652 | ||||||||||
| 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 | 1.55 | 1.64 | 98.9 | 1.663 | 0.664 | 6.2 | |||||||||||||
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 | FOURIER SYNTHESIS | THROUGHOUT | 5O5T | 1.55 | 50.01 | 144982 | 7625 | 99.78 | 0.19292 | 0.19185 | 0.19 | 0.2135 | 0.21 | RANDOM | 30.424 | ||||
| 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] | |
| 1.57 | -2.82 | 1.25 | ||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 36.703 |
| r_dihedral_angle_4_deg | 15.803 |
| r_dihedral_angle_3_deg | 13.524 |
| r_dihedral_angle_1_deg | 5.98 |
| r_long_range_B_refined | 5.662 |
| r_scbond_it | 2.699 |
| r_mcangle_it | 2.429 |
| r_mcbond_it | 1.769 |
| r_angle_refined_deg | 1.622 |
| r_chiral_restr | 0.112 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 5520 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 547 |
| Heterogen Atoms | 321 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| REFMAC | refinement |
| XDS | data reduction |
| Aimless | data scaling |
| REFMAC | phasing |
