Joint X-ray/neutron structure of HIV-1 protease triple mutant (V32I,I47V,V82I) with darunavir at pH 4.3
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 |
| 2.81 | 56.19 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 59.593 | α = 90 |
| b = 87.428 | β = 90 |
| c = 46.328 | 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 | 2014-11-08 | M | SINGLE WAVELENGTH | |||||
| 2 | 1 | neutron | 293 | IMAGE PLATE | MAATEL IMAGINE | ELLIPTICAL MIRRORS | 2014-12-04 | L | LAUE | |||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | ROTATING ANODE | RIGAKU MICROMAX-007 HF | 1.540 | ||
| 2 | NUCLEAR REACTOR | ORNL High Flux Isotope Reactor BEAMLINE CG4D | 2.8-4.0 | ORNL High Flux Isotope Reactor | CG4D |
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 | 1.75 | 40 | 86.2 | 34 | 4.3 | 21726 | |||||||||||||
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 | 1.75 | 33.74 | 25099 | 19201 | 949 | 76.5 | 0.203 | 0.1931 | 0.218 | 0.2046 | 27.64 | |||||||
| NEUTRON DIFFRACTION | MOLECULAR REPLACEMENT | 2.3 | 36.58 | 11249 | 7848 | 337 | 69.8 | 0.212 | 0.224 | 27.64 | |||||||||
| 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 |
| x_torsion_deg | 18.9 |
| x_torsion_deg | 18.9 |
| x_angle_deg | 1.1 |
| x_angle_deg | 1.1 |
| x_torsion_impr_deg | 0.96 |
| x_torsion_impr_deg | 0.96 |
| x_bond_d | 0.009 |
| x_bond_d | 0.009 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 1514 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 105 |
| 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 |














