Fragment-based approach to the design of ligands targeting a novel site on HIV-1 integrase
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details | 
| experimental model | PDB | 3L3U | PDB ENTRY 3L3U | 
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details | 
| 1 | VAPOR DIFFUSION, HANGING DROP | 4.6 | 293 | 1.8M AmSO4, 0.15M Na CITRATE pH 4.6, 5mM CdCl2, VAPOR DIFFUSION, HANGING DROP, temperature 293K | 
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content | 
| 2.02 | 39.23 | 
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) | 
| a = 49.16 | α = 90 | 
| b = 49.16 | β = 90 | 
| c = 103.12 | γ = 120 | 
| Symmetry | |
|---|---|
| Space Group | P 32 | 
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 210r | MIRRORS | 2008-09-29 | M | SINGLE WAVELENGTH | |||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline | 
| 1 | SYNCHROTRON | AUSTRALIAN SYNCHROTRON BEAMLINE MX1 | 0.957 | Australian Synchrotron | MX1 | 
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | R Sym I (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 | 1.8 | 50 | 99.4 | 0.037 | 0.041 | 27.7 | 5.6 | 25837 | 25677 | ||||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | R-Sym I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||
| 1.8 | 1.9 | 15 | 0.16 | 0.18 | 9.7 | 5.2 | |||||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Number Reflections (All) | 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 | PDB ENTRY 3L3U | 1.8 | 26.75 | 25837 | 24417 | 1285 | 100 | 0.18852 | 0.18702 | 0.19 | 0.2173 | 0.22 | RANDOM | 25.29 | |||
| 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] | |
| 0.02 | 0.01 | 0.02 | -0.04 | |||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation | 
| r_dihedral_angle_2_deg | 34.484 | 
| r_dihedral_angle_3_deg | 15.1 | 
| r_dihedral_angle_4_deg | 8.066 | 
| r_dihedral_angle_1_deg | 5.698 | 
| r_scangle_it | 3.832 | 
| r_scbond_it | 2.543 | 
| r_mcangle_it | 1.962 | 
| r_angle_refined_deg | 1.688 | 
| r_mcbond_it | 1.186 | 
| r_nbtor_refined | 0.299 | 
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number | 
| Protein Atoms | 2092 | 
| Nucleic Acid Atoms | |
| Solvent Atoms | 118 | 
| Heterogen Atoms | 77 | 
Software
| Software | |
|---|---|
| Software Name | Purpose | 
| Blu-Ice | data collection | 
| AMoRE | phasing | 
| REFMAC | refinement | 
| XDS | data reduction | 
| XSCALE | data scaling | 














