6YB8
Human octameric PAICS in complex with CAIR and SAICAR
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 2H31 |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 294 | 16 mg/ml PAICS with 5 mM SAICAR; 0.1 M MES/imidazole pH 6.5, 10% w/v PEG 8000, 20% v/v ethylene glycol, 0.02 M sodium L-glutamate, 0.02 M DL-alanine, 0.02 M glycine, 0.02 M DL-lysine HCl, and 0.02 M DL-serine |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.78 | 55.72 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 60.878 | α = 90 |
b = 153.922 | β = 90 |
c = 223.565 | γ = 90 |
Symmetry | |
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Space Group | I 2 2 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 | 100 | PIXEL | DECTRIS PILATUS 6M | 2018-08-29 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | SLS BEAMLINE X06SA | 1 | SLS | X06SA |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Rrim 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 | 2.36 | 47.15 | 99.8 | 0.256 | 0.266 | 0.995 | 8.39 | 13.827 | 43523 | 37.375 |
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) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||
1 | 2.36 | 2.51 | 99.2 | 1.152 | 1.195 | 0.775 | 1.81 | 14.312 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | 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 | THROUGHOUT | 2h31 | 2.36 | 47.15 | 41346 | 2177 | 99.78 | 0.1802 | 0.1773 | 0.2354 | RANDOM | 39.085 |
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] | |
-0.71 | 2.44 | -1.73 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 36.313 |
r_dihedral_angle_4_deg | 19.839 |
r_dihedral_angle_3_deg | 15.894 |
r_dihedral_angle_1_deg | 6.475 |
r_angle_other_deg | 2.34 |
r_angle_refined_deg | 1.64 |
r_chiral_restr | 0.07 |
r_bond_other_d | 0.035 |
r_bond_refined_d | 0.012 |
r_gen_planes_other | 0.012 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 6528 |
Nucleic Acid Atoms | |
Solvent Atoms | 452 |
Heterogen Atoms | 146 |
Software
Software | |
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Software Name | Purpose |
XSCALE | data scaling |
MOLREP | phasing |
REFMAC | refinement |
PDB_EXTRACT | data extraction |
XDS | data reduction |