Crystal structure of influenza virus N2 neuraminidase from A/Singapore/INFIMH-16-0019/2016 (H3N2)
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 9MQV |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 4 | 293 | 0.1 M citric acid, pH 4.0, 2.4 M ammonium sulfate |
Crystal Properties | |
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Matthews coefficient | Solvent content |
4.21 | 70.79 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 137.32 | α = 90 |
b = 137.32 | β = 90 |
c = 155.516 | γ = 90 |
Symmetry | |
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Space Group | I 4 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 EIGER2 X 16M | 2024-04-17 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | SSRL BEAMLINE BL12-1 | 0.97946 | SSRL | BL12-1 |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Sym I (Observed) | 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 | 2.29 | 48.55 | 95.4 | 0.26 | 0.06 | 0.993 | 12.6 | 17.6 | 32018 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R-Sym I (Observed) | Rpim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||
1 | 2.29 | 2.34 | 1 | 0.63 | 0.629 |
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 (Depositor) | R-Work (DCC) | R-Free (Depositor) | R-Free (DCC) | Mean Isotropic B | |||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | FREE R-VALUE | 2.29 | 48.55 | 1.33 | 31802 | 1597 | 94.01 | 0.1768 | 0.1748 | 0.1744 | 0.2143 | 0.2137 |
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 | 15.931 |
f_angle_d | 0.831 |
f_chiral_restr | 0.052 |
f_bond_d | 0.005 |
f_plane_restr | 0.005 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 2996 |
Nucleic Acid Atoms | |
Solvent Atoms | 163 |
Heterogen Atoms | 287 |
Software
Software | |
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Software Name | Purpose |
PHENIX | refinement |
HKL-3000 | data reduction |
HKL-3000 | data scaling |
PHASER | phasing |