Crystal structure of a HIV-1 Protease in complex with peptidomimetic inhibitor KI2-PHE-GLU-GLU-NH2
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 5.6 | 50mM MES, 2.4 ammonium sulfate, pH 5.6, VAPOR DIFFUSION, HANGING DROP, temperature 255K | |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 1.87 | 33.8 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 61.37 | α = 90 |
| b = 61.37 | β = 90 |
| c = 80.52 | γ = 120 |
| Symmetry | |
|---|---|
| Space Group | P 61 |
Diffraction
| Diffraction Experiment | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
| 1 | 1 | x-ray | 100 | CCD | ADSC QUANTUM 4 | M | SINGLE WAVELENGTH | |||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | ESRF BEAMLINE ID14-2 | ESRF | ID14-2 | |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (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 | 53.45 | 99.3 | 8740 | 8740 | ||||||||||||||
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 (All) | 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 | 2.201 | 53.45 | 8326 | 413 | 99.66 | 0.21103 | 0.21103 | 0.20873 | 0.2172 | 0.25864 | 0.2599 | RANDOM | 47.864 | ||||
| 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] | |
| 2.43 | 1.22 | 2.43 | -3.65 | |||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_1_deg | 8.272 |
| r_scangle_it | 6.841 |
| r_scbond_it | 3.99 |
| r_angle_other_deg | 3.795 |
| r_angle_refined_deg | 2.95 |
| r_mcangle_it | 2.658 |
| r_mcbond_it | 1.443 |
| r_symmetry_vdw_other | 0.319 |
| r_nbd_other | 0.285 |
| r_xyhbond_nbd_refined | 0.267 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 1549 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 17 |
| Heterogen Atoms | |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| XDS | data scaling |
| XDS | data reduction |
| EPMR | phasing |
| REFMAC | refinement |














