4FF2
N4 mini-vRNAP transcription initiation complex, 2 min after soaking GTP, ATP and Mn
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 8 | 295 | 0.1 M TRIS-HCL, 0.21 M DIBASIC AMMONIUM CITRATE, 0.09 M AMMONIUM DIHYDROGEN MONOPHOSPHATE, 25 % (DROP) 15% (RESERVOIR) PEG 3350, pH 8, VAPOR DIFFUSION, HANGING DROP, temperature 295K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.34 | 47.53 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 81.908 | α = 90 |
b = 111.437 | β = 90 |
c = 275.76 | γ = 90 |
Symmetry | |
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Space Group | P 21 21 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 | 100 | CCD | ADSC QUANTUM 270 | 2010-07-07 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | CHESS BEAMLINE F1 | 0.918 | CHESS | F1 |
Data Collection
Overall | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 | 2 | 47.674 | 90.3 | 4.4 | 2 | 2 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution 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 | R-Free Selection Details | Mean Isotropic B | |||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | 2 | 47.674 | 1.37 | 154842 | 1978 | 90.68 | 0.2082 | 0.2076 | 0.2554 | Randam |
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] | |
2.918 | -2.9735 | 0.0555 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
f_dihedral_angle_d | 15.61 |
f_angle_d | 0.831 |
f_chiral_restr | 0.054 |
f_bond_d | 0.004 |
f_plane_restr | 0.003 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 16908 |
Nucleic Acid Atoms | 826 |
Solvent Atoms | 1173 |
Heterogen Atoms | 66 |
Software
Software | |
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Software Name | Purpose |
HKL-2000 | data collection |
PHASER | phasing |
PHENIX | refinement |
HKL-2000 | data reduction |
HKL-2000 | data scaling |