4OLB
Crystal Structure of Human Argonaute2 Bound to Tryptophan
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
---|---|---|---|
Type | Source | Accession Code | Details |
experimental model | PDB | 4OLA | PDB ENTRY 4OLA |
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 9 | 293 | 16% PEG3350, 12% isopropanol, saturated L-tryptophan, 0.1 M Tris, pH 9.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K |
Crystal Properties | |
---|---|
Matthews coefficient | Solvent content |
2.19 | 43.87 |
Crystal Data
Unit Cell | |
---|---|
Length ( Å ) | Angle ( ˚ ) |
a = 63.207 | α = 90 |
b = 106.747 | β = 107.01 |
c = 68.341 | γ = 90 |
Symmetry | |
---|---|
Space Group | P 1 21 1 |
Diffraction
Diffraction Experiment | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 100 | PIXEL | DECTRIS PILATUS 6M | 2012-01-30 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | SSRL BEAMLINE BL11-1 | 0.97945 | SSRL | BL11-1 |
Data Collection
Overall | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge 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 | 2.893 | 65.347 | 97.9 | 0.058 | 10.8 | 3.4 | 19450 | 19005 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
1 | 2.893 | 3.05 | 93.2 | 0.286 | 2.6 | 3.2 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Starting model | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work | R-Free | Mean Isotropic B | |||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | PDB ENTRY 4OLA | 2.899 | 39.045 | 1.34 | 18863 | 955 | 97.62 | 0.2118 | 0.2098 | 0.2488 |
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 |
f_dihedral_angle_d | 14.531 |
f_angle_d | 0.787 |
f_chiral_restr | 0.053 |
f_bond_d | 0.003 |
f_plane_restr | 0.003 |
Non-Hydrogen Atoms Used in Refinement | |
---|---|
Non-Hydrogen Atoms | Number |
Protein Atoms | 6380 |
Nucleic Acid Atoms | 191 |
Solvent Atoms | 7 |
Heterogen Atoms | 28 |
Software
Software | |
---|---|
Software Name | Purpose |
PHENIX | refinement |
XDS | data reduction |
SCALA | data scaling |