8CMI
Human Leukocyte Antigen class II allotype DR1 presenting SARS-CoV-2 Omicron (BA.1) Spike peptide S761-775
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 7 | 291 | 0.1 M TRIS pH 7.0, 28 % PEG8000, 0.2 M ammonium sulphate |
Crystal Properties | |
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Matthews coefficient | Solvent content |
3 | 59.03 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 148.19 | α = 90 |
b = 148.19 | β = 90 |
c = 129.071 | 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 EIGER2 XE 16M | 2022-04-28 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | DIAMOND BEAMLINE I04 | 0.9795 | Diamond | I04 |
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 | 2.6 | 48.67 | 99.52 | 0.358 | 0.367 | 0.0793 | 0.992 | 5.93 | 21.1 | 50460 | 55.03 |
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 | 2.6 | 2.69 | 99.09 | 2.637 | 2.699 | 0.571 | 0.522 | 0.56 | 21.8 |
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 | 2.6 | 48.51 | 1.36 | 50437 | 2554 | 99.54 | 0.194 | 0.1918 | 0.2364 | 65.65 |
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 | 12.6579 |
f_angle_d | 0.5946 |
f_chiral_restr | 0.0451 |
f_plane_restr | 0.0046 |
f_bond_d | 0.0025 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 9460 |
Nucleic Acid Atoms | |
Solvent Atoms | 151 |
Heterogen Atoms | 98 |
Software
Software | |
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Software Name | Purpose |
PHENIX | refinement |
DIALS | data scaling |
DIALS | data reduction |
PHASER | phasing |