Crystal Structure of Tier 2 Neutralizing Antibody DH427 from a Rhesus Macaque in Complex with HIV-1 gp120 Core
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 4LST | HIV strain ZM176.66 gp120 core from PDB Entry 4LST, and separated Fv and Fc regions of DH427 Fab from PDB Entry 5F6H |
| experimental model | PDB | 5F6H | HIV strain ZM176.66 gp120 core from PDB Entry 4LST, and separated Fv and Fc regions of DH427 Fab from PDB Entry 5F6H |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 8 | 293 | 1.5M ammonium sulfate and 100 mM Tris, pH 8.0 |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 5.1 | 75.9 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 162.902 | α = 90 |
| b = 162.902 | β = 90 |
| c = 229.854 | γ = 120 |
| Symmetry | |
|---|---|
| Space Group | P 64 |
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 315 | 2015-04-15 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | APS BEAMLINE 24-ID-E | 0.97916 | APS | 24-ID-E |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim I (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 | 6.63 | 141.08 | 93.2 | 0.273 | 0.312 | 0.146 | 7.5 | 6.7 | 6058 | ||||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||||
| 1 | 6.63 | 6.8 | 94.1 | 1.1 | 6.6 | ||||||||||||||
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 | HIV strain ZM176.66 gp120 core from PDB Entry 4LST, and separated Fv and Fc regions of DH427 Fab from PDB Entry 5F6H | 6.63 | 141.08 | 5756 | 302 | 93.24 | 0.2585 | 0.256 | 0.26 | 0.3046 | 0.3 | RANDOM | 276.625 | ||||
| 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] | |
| -1.41 | -0.71 | -1.41 | 4.59 | |||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 36.348 |
| r_dihedral_angle_3_deg | 18.676 |
| r_mcangle_it | 17.615 |
| r_dihedral_angle_4_deg | 16.746 |
| r_mcbond_it | 9.979 |
| r_scbond_it | 9.757 |
| r_dihedral_angle_1_deg | 6.457 |
| r_angle_refined_deg | 1.389 |
| r_chiral_restr | 0.084 |
| r_bond_refined_d | 0.009 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 11572 |
| Nucleic Acid Atoms | |
| Solvent Atoms | |
| Heterogen Atoms | |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| REFMAC | refinement |
| PDB_EXTRACT | data extraction |
| PHASER | phasing |
| HKL-2000 | data reduction |
| HKL-2000 | data scaling |
| Coot | model building |














