1XWR
Crystal structure of the coliphage lambda transcription activator protein CII
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 8.2 | 298 | PEG 3350, isopropanol, pH 8.2, VAPOR DIFFUSION, HANGING DROP, temperature 298.0K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.93 | 57.7 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 63.907 | α = 90 |
b = 106.794 | β = 90 |
c = 119.784 | 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 | 100 | M | MAD | |||||||||
2 | 1 | x-ray | 100 | M | SINGLE WAVELENGTH | |||||||||
3 | 1 | x-ray | 100 | M | SAD |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | EMBL/DESY, HAMBURG BEAMLINE BW7A | 0.9836, 0.9841, 0.9949, 0.9733 | EMBL/DESY, HAMBURG | BW7A |
2 | SYNCHROTRON | EMBL/DESY, HAMBURG BEAMLINE X13 | 0.80 | EMBL/DESY, HAMBURG | X13 |
3 | SYNCHROTRON | SPRING-8 BEAMLINE BL40B2 | 0.9796 | SPring-8 | BL40B2 |
Data Collection
Overall | |||||||||||||||||||
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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 | ||||||||
1,2,3 | 2.55 | 20 | 99.8 | 0.068 | 22.4 | 6.5 | 13683 | 13650 | 2 | 2 | 77.2 |
Highest Resolution Shell | |||||||||||||||||||
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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) | |||||||||||
2.55 | 2.59 | 99.4 | 0.71 | 2.1 | 6.5 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution 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 (Depositor) | R-Work (DCC) | R-Free (Depositor) | R-Free (DCC) | R-Free Selection Details | Mean Isotropic B | ||||
X-RAY DIFFRACTION | MAD | 2.56 | 20 | 13649 | 13536 | 950 | 99.7 | 0.315 | 0.25 | 0.25 | 0.24 | 0.286 | 0.24 | RANDOM | 46.04 |
Temperature Factor Modeling | ||||||
---|---|---|---|---|---|---|
Anisotropic B[1][1] | Anisotropic B[2][2] | Anisotropic B[3][3] | ||||
-7.618 | 1.483 | 6.135 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
c_angle_deg | 1.3 |
c_bond_d | 0.009 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 2430 |
Nucleic Acid Atoms | |
Solvent Atoms | 55 |
Heterogen Atoms |
Software
Software | |
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Software Name | Purpose |
HKL-2000 | data collection |
SCALEPACK | data scaling |
SOLVE | phasing |
CNS | refinement |
HKL-2000 | data reduction |