3AO4
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 |
1.95 | 37.08 |
Crystal Data
Unit Cell | |
---|---|
Length ( Å ) | Angle ( ˚ ) |
a = 48.2 | α = 90 |
b = 48.2 | β = 90 |
c = 103.6 | 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 | 2008-08-16 | 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 | 1.95 | 50 | 95.1 | 0.058 | 0.045 | 23.8 | 5.7 | 19634 | 18720 | 39.7 |
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) | ||||||||||
1.95 | 2.05 | 87 | 0.344 | 0.416 | 4.6 | 5.7 | 2380 |
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 | R-Free | R-Free Selection Details | Mean Isotropic B | ||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | PDB ENTRY 3l3u | 1.95 | 38.72 | 18517 | 975 | 100 | 0.20538 | 0.20288 | 0.25349 | RANDOM | 36.152 |
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] | |
1.3 | 0.65 | 1.3 | -1.96 |
RMS Deviations | |
---|---|
Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 34.902 |
r_dihedral_angle_4_deg | 23.778 |
r_dihedral_angle_3_deg | 17.625 |
r_dihedral_angle_1_deg | 6.887 |
r_scangle_it | 5.245 |
r_scbond_it | 3.436 |
r_mcangle_it | 2.521 |
r_angle_refined_deg | 2.154 |
r_mcbond_it | 1.457 |
r_chiral_restr | 0.134 |
Non-Hydrogen Atoms Used in Refinement | |
---|---|
Non-Hydrogen Atoms | Number |
Protein Atoms | 2095 |
Nucleic Acid Atoms | |
Solvent Atoms | 60 |
Heterogen Atoms | 53 |
Software
Software | |
---|---|
Software Name | Purpose |
Blu-Ice | data collection |
AMoRE | phasing |
REFMAC | refinement |
XDS | data reduction |
XSCALE | data scaling |