3E6S
Crystal structure of ferritin soaked with iron from Pseudo-nitzschia multiseries
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 5.5 | 293 | Crystals grown in 0.1 M ammonium acetate pH 5.5 and 1.6 M ammonium sulphate then soaked in 20 mM ferrous sulphate, 2 mM sodium sulphate and 25% glycerol for 10 minutes, VAPOR DIFFUSION, HANGING DROP, temperature 293K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.97 | 58.64 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 125.625 | α = 90 |
b = 125.625 | β = 90 |
c = 170.132 | γ = 90 |
Symmetry | |
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Space Group | P 4 21 2 |
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 | 90 | CCD | MARMOSAIC 325 mm CCD | Flat collimating mirror, double crystal monochromator, toroid focusing mirror | 2008-05-31 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | SSRL BEAMLINE BL9-2 | 0.9200 | 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 | 1.95 | 50 | 99.8 | 0.064 | 6.9 | 99333 | 99298 | 29.745 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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) | |||||||||||
1.95 | 2.02 | 100 | 0.463 | 6.3 | 9816 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Resolution (High) | Resolution (Low) | 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 | THROUGHOUT | 1.95 | 35.22 | 99298 | 4959 | 99.73 | 0.172 | 0.172 | 0.17 | 0.205 | RANDOM | 27.347 |
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] | |
0.37 | 0.37 | -0.74 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 39.549 |
r_dihedral_angle_4_deg | 14.295 |
r_dihedral_angle_3_deg | 13.387 |
r_scangle_it | 5.621 |
r_dihedral_angle_1_deg | 4.483 |
r_scbond_it | 3.437 |
r_mcangle_it | 1.89 |
r_angle_refined_deg | 1.414 |
r_mcbond_it | 1.164 |
r_nbtor_refined | 0.304 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 7687 |
Nucleic Acid Atoms | |
Solvent Atoms | 881 |
Heterogen Atoms | 37 |
Software
Software | |
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Software Name | Purpose |
DENZO | data reduction |
SCALEPACK | data scaling |
REFMAC | refinement |
PDB_EXTRACT | data extraction |
HKL-2000 | data collection |
HKL-2000 | data reduction |
PHASER | phasing |