2ECS
Lambda Cro mutant Q27P/A29S/K32Q at 1.4 A in space group C2
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 5.5 | 298 | 80% saturated lithium sulfate, pH 5.5, VAPOR DIFFUSION, HANGING DROP, temperature 298.0K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.19 | 43.91 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 88.689 | α = 90 |
b = 26.999 | β = 103.69 |
c = 55.523 | γ = 90 |
Symmetry | |
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Space Group | C 1 2 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 | MARMOSAIC 325 mm CCD | mirrors | 2006-07-19 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | SSRL BEAMLINE BL9-2 | 0.97946 | SSRL | BL9-2 |
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 | 1.4 | 53.946 | 99.8 | 0.074 | 5.8 | 5.5 | 25562 | 25562 | 21.3 |
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) | |||||||||||
1 | 1.4 | 1.48 | 100 | 0.416 | 1.7 | 5.4 | 3680 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Number Reflections (All) | 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 | THROUGHOUT | Lambda Cro Q27P/A29S/K32Q at 1.35 A resolution in space group P3221 | 1.4 | 53.92 | 25561 | 25561 | 1300 | 99.82 | 0.141 | 0.139 | 0.175 | RANDOM | 12.014 |
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] | |
1.07 | -0.4 | -0.92 | -0.34 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 30.209 |
r_dihedral_angle_4_deg | 15.655 |
r_sphericity_free | 15.115 |
r_dihedral_angle_1_deg | 14.073 |
r_dihedral_angle_3_deg | 12.578 |
r_sphericity_bonded | 8.97 |
r_scangle_it | 8.753 |
r_scbond_it | 7.281 |
r_mcangle_it | 4.362 |
r_mcbond_it | 3.862 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 942 |
Nucleic Acid Atoms | |
Solvent Atoms | 161 |
Heterogen Atoms | 39 |
Software
Software | |
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Software Name | Purpose |
SCALA | data scaling |
PHASER | phasing |
REFMAC | refinement |
PDB_EXTRACT | data extraction |
Blu-Ice | data collection |
CrystalClear | data reduction |