4I3H
A three-gate structure of topoisomerase IV from Streptococcus pneumoniae
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 5 | 296 | 4% isopropanol, 50 mM sodium citrate, 600 nL + 400 nL (protein + precipitant) drop ratio, VAPOR DIFFUSION, SITTING DROP, temperature 296K |
Crystal Properties | |
---|---|
Matthews coefficient | Solvent content |
3.02 | 59.34 |
Crystal Data
Unit Cell | |
---|---|
Length ( Å ) | Angle ( ˚ ) |
a = 160.6 | α = 90 |
b = 160.6 | β = 90 |
c = 280.56 | γ = 90 |
Symmetry | |
---|---|
Space Group | P 42 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 | 100 | PIXEL | DECTRIS PILATUS 2M | 2012-07-23 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | DIAMOND BEAMLINE I04-1 | 0.92000 | Diamond | I04-1 |
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 | 3.7 | 72.19 | 99.75 | 0.124 | 0.124 | 3.1256 | 12.11 | 39884 | 39884 | -1 | -1 |
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 | 3.7 | 3.9 | 100 | 0.45 | 1.71 | 11.46 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Starting model | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | Number Reflections (All) | 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 | 3RAE,1EI1 | 3.7 | 71.823 | 1.34 | 39884 | 39825 | 2006 | 99.69 | 0.1886 | 0.1855 | 0.2485 |
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] | |
7.8718 | 7.8718 | -12.19 |
RMS Deviations | |
---|---|
Key | Refinement Restraint Deviation |
f_dihedral_angle_d | 18.903 |
f_angle_d | 1.396 |
f_chiral_restr | 0.087 |
f_bond_d | 0.009 |
f_plane_restr | 0.005 |
Non-Hydrogen Atoms Used in Refinement | |
---|---|
Non-Hydrogen Atoms | Number |
Protein Atoms | 14849 |
Nucleic Acid Atoms | 1374 |
Solvent Atoms | 2 |
Heterogen Atoms | 3 |
Software
Software | |
---|---|
Software Name | Purpose |
GDE | data collection |
PHASER | phasing |
PHENIX | refinement |
MOSFLM | data reduction |
SCALA | data scaling |