8VCB
Crystal structure of a Bacteroides fragilis S41 protease
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 6 | 289.15 | 0.15uL 9.1 mg/mL Q5LIA5 (10mM HEPES pH 7.5, 100mM NaCl) were mixed with 0.15 uL of reservoir solution. Sitting drop reservoir contained 25 uL of 0.1 M MES monohydrate pH 6.0 and 22% v/v Polyethylene glycol 400. Crystal was frozen in a solution of ~25% glycerol, 75% reservoir after ~10s soaking in that solution. |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.13 | 42.27 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 63.397 | α = 90 |
b = 43.073 | β = 101.71 |
c = 119.743 | 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 | PIXEL | DECTRIS EIGER X 16M | 2023-02-28 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | AUSTRALIAN SYNCHROTRON BEAMLINE MX2 | 0.9537 | Australian Synchrotron | MX2 |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | 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 | 1.96 | 47.73 | 99.9 | 0.155 | 0.168 | 0.063 | 0.997 | 9.4 | 6.9 | 46018 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||
1 | 1.96 | 2.01 | 98.4 | 1.17 | 1.265 | 0.475 | 0.735 | 6.9 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work | R-Free | Mean Isotropic B | |||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | FREE R-VALUE | 1.96 | 40.43 | 1.34 | 45993 | 2176 | 99.85 | 0.1796 | 0.1773 | 0.228 |
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] | |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
f_dihedral_angle_d | 6.199 |
f_angle_d | 1.181 |
f_chiral_restr | 0.065 |
f_plane_restr | 0.013 |
f_bond_d | 0.011 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 4984 |
Nucleic Acid Atoms | |
Solvent Atoms | 299 |
Heterogen Atoms |
Software
Software | |
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Software Name | Purpose |
PHENIX | refinement |
Aimless | data scaling |
XDS | data reduction |
PHASER | phasing |