3OGF
Crystal structure of Difoil-4P homo-trimer: de novo designed dimeric trefoil-fold sub-domain which forms homo-trimer assembly
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 5.5 | 298 | 2M ammonium sulfate, 0.1M sodium citrate, 17mg/mL protein concentration, pH 5.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.47 | 50.22 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 81.242 | α = 90 |
b = 85.414 | β = 90 |
c = 86.086 | γ = 90 |
Symmetry | |
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Space Group | I 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 | MARMOSAIC 300 mm CCD | 2010-08-04 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | APS BEAMLINE 22-ID | APS | 22-ID |
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 | 2.85 | 50 | 94.9 | 0.119 | 33 | 6.1 | 6757 | 6415 | 3 | 3 | 62.68 |
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 | 2.85 | 2.9 | 61.8 | 0.362 | 4.3 | 3.2 | 218 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | 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 | 2.864 | 43.043 | 0.08 | 6757 | 6415 | 315 | 89.35 | 0.2308 | 0.2269 | 0.3111 | RANDOM |
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] | |
-29.4168 | 12.9741 | 16.4426 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
f_dihedral_angle_d | 13.228 |
f_angle_d | 0.549 |
f_chiral_restr | 0.034 |
f_plane_restr | 0.003 |
f_bond_d | 0.002 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 1902 |
Nucleic Acid Atoms | |
Solvent Atoms | |
Heterogen Atoms | 15 |
Software
Software | |
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Software Name | Purpose |
HKL-2000 | data collection |
PHASES | phasing |
PHENIX | refinement |
HKL-2000 | data reduction |
HKL-2000 | data scaling |