5U5Q
12 Subunit RNA Polymerase II at Room Temperature collected using SFX
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | MICRODIALYSIS | 6.3 | 289.65 | 21-22% PEG 400, 5% PEG 5%, 100 mM Ammonium Phosphate pH 6.3, 100 mM NaCl, 1 mM ZnCl2 and 10 mM DTT |
Crystal Properties | |
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Matthews coefficient | Solvent content |
6.2 | 80.18 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 223.4 | α = 90 |
b = 396.8 | β = 90 |
c = 287.9 | γ = 90 |
Symmetry | |
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Space Group | C 2 2 21 |
Diffraction
Diffraction Experiment | ||||||||||||||
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ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 293.15 | PIXEL | CS-PAD CXI-2 | 90 150 nm2 FWHM (V H) with Kirkpatrick-Baez mirrors | 2015-05-26 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | FREE ELECTRON LASER | SLAC LCLS BEAMLINE CXI | 1.55 | SLAC LCLS | CXI |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (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 | 3.8 | 40.611 | 99 | 2.41 | 54.9 | 123899 | 140.9 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | 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 | FREE R-VALUE | 3.8 | 40.611 | 1.33 | 123899 | 2493 | 98.91 | 0.219 | 0.2179 | 0.2706 |
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 | |
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Key | Refinement Restraint Deviation |
f_dihedral_angle_d | 18.07 |
f_angle_d | 0.616 |
f_chiral_restr | 0.043 |
f_plane_restr | 0.004 |
f_bond_d | 0.003 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 31625 |
Nucleic Acid Atoms | |
Solvent Atoms | |
Heterogen Atoms | 9 |
Software
Software | |
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Software Name | Purpose |
PHENIX | refinement |
CrystFEL | data reduction |
CrystFEL | data scaling |
Coot | model building |