Crystal structure of a computationally designed metalloprotein containing the metal-chelating, fluorogenic, non-canonical amino acid 3-(8-hydroxyquinolin-3-yl)-L-alanine: zinc-bound form
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 1LBL |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION | 5.5 | 277 | 0.2 M ammonium sulfate, 0.1 M Bis-Tris, pH 5.5, 20% w/v PEG3350, 50 uM zinc chloride |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.32 | 46.93 |
Crystal Data
Unit Cell | |
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Length ( ? ) | Angle ( ? ) |
a = 62.593 | ¦Á = 90 |
b = 62.593 | ¦Â = 90 |
c = 121.416 | ¦Ã = 120 |
Symmetry | |
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Space Group | P 31 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 | PIXEL | DECTRIS EIGER X 16M | 2021-06-25 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | APS BEAMLINE 23-ID-B | 1.033167 | APS | 23-ID-B |
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 | 1.37 | 49.5 | 92.5 | 0.067 | 0.073 | 0.029 | 0.997 | 11.4 | 5.7 | 54798 |
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 | 1.37 | 1.39 | 32.1 | 1.294 | 1.691 | 1.07 | 0.218 | 1.7 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work (Depositor) | R-Work (DCC) | R-Free (Depositor) | R-Free (DCC) | Mean Isotropic B | ||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | FREE R-VALUE | PDB entry 1LBL | 1.45 | 49.5 | 1.34 | 48787 | 1761 | 98.32 | 0.1309 | 0.1297 | 0.1354 | 0.1635 | 0.1628 |
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] | |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
f_dihedral_angle_d | 5.961 |
f_angle_d | 1.086 |
f_chiral_restr | 0.078 |
f_plane_restr | 0.019 |
f_bond_d | 0.009 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 1999 |
Nucleic Acid Atoms | |
Solvent Atoms | 313 |
Heterogen Atoms | 21 |
Software
Software | |
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Software Name | Purpose |
PHENIX | refinement |
Aimless | data scaling |
XDS | data reduction |
PHASER | phasing |