4H3K
Crystal structure of a ternary complex of human symplekin NTD, human Ssu72 and a RNA polymerase II CTD peptide phosphorylated at Ser-2, Ser-5 and Ser-7
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 8.5 | 293 | 1.6M ammonium chloride, 27% (w/v) PEG 3350, 10mM Sodium potassium tartrate, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.65 | 53.54 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 67.583 | α = 90 |
b = 97.364 | β = 97.86 |
c = 105.278 | γ = 90 |
Symmetry | |
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Space Group | P 1 21 1 |
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 315r | 2012-03-21 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | NSLS BEAMLINE X29A | 1.075 | NSLS | X29A |
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 | 50 | 97.3 | 91319 | 88854 | -3 | -3 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||||
1 | 2 | 2.108 | 89 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Resolution (High) | Resolution (Low) | Number Reflections (All) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (All) | R-Factor (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | |||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | 2 | 50 | 86668 | 83323 | 4376 | 96.14 | 0.19857 | 0.19857 | 0.19676 | 0.23295 | RANDOM | 35.189 |
Temperature Factor Modeling | ||||||
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Anisotropic B[1][1] | Anisotropic B[1][2] | Anisotropic B[1][3] | Anisotropic B[2][2] | Anisotropic B[2][3] | Anisotropic B[3][3] | |
1.7 | 0.5 | -1.1 | -0.46 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 40.595 |
r_dihedral_angle_4_deg | 20.497 |
r_dihedral_angle_3_deg | 17.49 |
r_dihedral_angle_1_deg | 5.376 |
r_scangle_it | 4.851 |
r_scbond_it | 2.936 |
r_mcangle_it | 1.679 |
r_angle_refined_deg | 1.461 |
r_mcbond_it | 0.857 |
r_chiral_restr | 0.109 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 8129 |
Nucleic Acid Atoms | |
Solvent Atoms | 113 |
Heterogen Atoms | 5 |
Software
Software | |
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Software Name | Purpose |
CBASS | data collection |
REFMAC | refinement |
HKL-2000 | data reduction |
HKL-2000 | data scaling |