7RIZ
Crystal structure of RPA3624, a beta-propeller lactonase from Rhodopseudomonas palustris, with active-site bound 2-hydroxyquinoline
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 7RIS |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 6.5 | 293 | Crystals were grown in a MRC SD2 plate set with a TTP Labtech Mosquito crystallization robot. Protein sample at 9.2mg/mL was inclubated with 5mM 2-hydroxyquinoline at 293K for 1 hour prior to plate setup. The crystal providing the refinement data set was grown by mixing 200 nL protein-2HQ solution with 100 nL reservoir solution, 24% PEG3350, 0.2 M CaCl2, 0.1M bistris pH 6.5. Crystals were cryoprotected by soaking in reservoir solution supplemented to 30% PEG3350 and direct immersion in liquid nitrogen |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.06 | 40.26 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 48.558 | α = 90 |
b = 48.558 | β = 90 |
c = 199.122 | γ = 120 |
Symmetry | |
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Space Group | P 32 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 9M | 2020-07-25 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | APS BEAMLINE 21-ID-D | 1.127230 | APS | 21-ID-D |
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 | 1.71 | 33.19 | 99.31 | 0.1008 | 0.1036 | 0.02366 | 0.999 | 17.31 | 19.5 | 30590 | 27.74 |
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 | 1.71 | 1.771 | 98.19 | 1.421 | 1.458 | 0.323 | 0.964 | 1.65 | 20.2 |
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 | R-Free | Mean Isotropic B | ||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | FREE R-VALUE | 7RIS | 1.71 | 33.19 | 1.34 | 30523 | 1995 | 99.18 | 0.1794 | 0.1773 | 0.2096 | 37.04 |
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 | 13.3142 |
f_angle_d | 1.0297 |
f_chiral_restr | 0.0695 |
f_bond_d | 0.0117 |
f_plane_restr | 0.0101 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 2288 |
Nucleic Acid Atoms | |
Solvent Atoms | 202 |
Heterogen Atoms | 13 |
Software
Software | |
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Software Name | Purpose |
PHENIX | refinement |
XDS | data reduction |
XSCALE | data scaling |
PHASER | phasing |