8C3E
Engineered mini-protein LCB2 (blocking ligand of SARS-Cov-2 spike protein)
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 4.8 | 291 | 0.1M Sodium acetate ph4.8, 50mM Ammonium Sulfate, 5% PEG4000 |
Crystal Properties | |
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Matthews coefficient | Solvent content |
3.07 | 60 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 57.817 | α = 90 |
b = 57.817 | β = 90 |
c = 41.54 | γ = 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 | RIGAKU HyPix-6000HE | 2022-07-07 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SEALED TUBE | RIGAKU PhotonJet-S | 1.54184 |
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 | 2.1 | 50.07 | 99.9 | 0.156 | 0.164 | 0.051 | 0.9967 | 16 | 10.2 | 4881 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 | 2.105 | 2.141 | 100 | 0.61 | 0.641 | 0.194 | 0.859 | 4 | 10.7 |
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 | 2.1 | 50.07 | 18.47 | 4881 | 521 | 99.9 | 0.2202 | 0.211 | 0.2456 | 11.15 |
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 | 9.7832 |
f_angle_d | 0.3617 |
f_chiral_restr | 0.0292 |
f_plane_restr | 0.0029 |
f_bond_d | 0.0019 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 463 |
Nucleic Acid Atoms | |
Solvent Atoms | 24 |
Heterogen Atoms | 18 |
Software
Software | |
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Software Name | Purpose |
CrysalisPro | data collection |
autoPROC | data processing |
autoPROC | data reduction |
autoPROC | data scaling |
PHENIX | phasing |
PHENIX | refinement |