7O46
Crystal Structure of SARS-CoV-2 main protease (Nsp5) in complex with compound 17
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 7B5Z |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 7.75 | 293 | 100 nL protein (8.3 mg/mL, 50 mM Tris pH 8.0, 300 mM NaCl), 50 nL seeds, 450 nL reservoir (200 mM HEPES pH 7.75, 5% DMSO, 12.5% PEG4K). Soaking: 200 mM HEPES pH 7.75, 6.25 mM compound, 5% DMSO, 10% PEG300, 20% PEG3K, RT, 2 h. |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2 | 38.5 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 113.666 | α = 90 |
b = 54.064 | β = 101.47 |
c = 44.931 | γ = 90 |
Symmetry | |
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Space Group | C 1 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 16M | 2021-02-23 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | MAX IV BEAMLINE BioMAX | 0.976 | MAX IV | BioMAX |
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 | 2.23 | 48.64 | 99.7 | 0.055 | 0.059 | 0.023 | 0.998 | 14.6 | 6.8 | 13122 |
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 | 2.23 | 2.31 | 97.7 | 1.443 | 1.56 | 0.587 | 0.537 | 7 |
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 | 7B5Z | 2.23 | 34.18 | 12473 | 638 | 99.57 | 0.1984 | 0.1958 | 0.2487 | RANDOM | 79.259 |
Temperature Factor Modeling | ||||||
---|---|---|---|---|---|---|
Anisotropic B[1][1] | Anisotropic B[1][2] | Anisotropic B[1][3] | Anisotropic B[2][2] | Anisotropic B[2][3] | Anisotropic B[3][3] | |
4.28 | 1.19 | -2.38 | -2.2 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 34.802 |
r_dihedral_angle_3_deg | 15.383 |
r_dihedral_angle_4_deg | 10.649 |
r_dihedral_angle_1_deg | 8.029 |
r_angle_refined_deg | 1.507 |
r_angle_other_deg | 1.245 |
r_chiral_restr | 0.059 |
r_bond_refined_d | 0.007 |
r_gen_planes_refined | 0.006 |
r_bond_other_d | 0.001 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 2329 |
Nucleic Acid Atoms | |
Solvent Atoms | 2 |
Heterogen Atoms | 24 |
Software
Software | |
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Software Name | Purpose |
Aimless | data scaling |
REFMAC | refinement |
PDB_EXTRACT | data extraction |
XDS | data reduction |
PHASER | phasing |