Joint X-ray/neutron structure of HIV-1 protease triple mutant (V32I,I47V,V82I) with darunavir at pH 6.0
X-RAY DIFFRACTION - NEUTRON DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 4JEC | |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 291 | NaCl, MES | |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.82 | 56.41 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 59.724 | α = 90 |
| b = 87.257 | β = 90 |
| c = 46.547 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | P 21 21 2 |
Diffraction
| Diffraction Experiment | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
| 1 | 1 | x-ray | 293 | IMAGE PLATE | RIGAKU RAXIS IV++ | OSMIC VARIMAX | 2014-08-20 | M | SINGLE WAVELENGTH | |||||
| 2 | 1 | neutron | 293 | IMAGE PLATE | MAATEL IMAGINE | COLLIMATORS | 2014-10-13 | L | LAUE | |||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | ROTATING ANODE | RIGAKU MICROMAX-007 HF | 1.540 | ||
| 2 | NUCLEAR REACTOR | LADI/ILL | 2.80 - 4.0 | ||
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | R Sym I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | R Split (All) | 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 | 1.85 | 40 | 98.2 | 0.048 | 26.5 | 3.9 | 21102 | ||||||||||||
| 2 | 2 | 27.61 | 83.5 | 0.147 | 5.2 | 5.9 | 13170 | ||||||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | R Merge I (Observed) | R-Sym I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | R Split (All) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||
| 1.85 | 1.92 | 0.478 | 2.8 | 3.9 | |||||||||||||||
| 2 | 2 | 2.11 | 0.267 | 3.2 | 5.2 | ||||||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Resolution (High) | Resolution (Low) | Cut-off Sigma (I) | Cut-off Sigma (F) | Number Reflections (All) | 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 | 1.85 | 20 | 2.5 | 21426 | 18339 | 926 | 87.9 | 0.194 | 0.1837 | 0.201 | 0.1926 | RANDOM | 27.3 | |||||
| NEUTRON DIFFRACTION | MOLECULAR REPLACEMENT | 2 | 40 | 2.5 | 16128 | 11729 | 564 | 68.8 | 0.217 | 0.245 | RANDOM | 27.3 | |||||||
| 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] | |
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| c_torsion_deg | 16.4 |
| c_torsion_deg | 16.4 |
| c_angle_deg | 1 |
| c_angle_deg | 1 |
| c_torsion_impr_deg | 0.85 |
| c_torsion_impr_deg | 0.85 |
| c_bond_d | 0.008 |
| c_bond_d | 0.008 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 1514 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 116 |
| Heterogen Atoms | 38 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| HKL-3000 | data reduction |
| HKL-3000 | data scaling |
| PHASER | phasing |
| nCNS | refinement |
| LAUEGEN | data reduction |
| LSCALE | data scaling |














