8VDJ
Crystal structure of SARS-CoV-2 3CL protease (3CLpro) as a covalent complex with EDP-235
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 6LU7 |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 7.5 | 293 | The protein solution was incubated with DTT (0.22 mM) for 10 min on ice. Compound EDP-235 in DMSO (2.88 mM) was then added and incubated for 3 hrs on ice, then for 20 min at 18 C. Crystals appeared in drop with reservoir conditions: 0.2 M sodium thiocyanate, 20 % w/v PEG3350. The sample was harvested after 10 days growth and transferred to drop of neat reservoir condition. Cryoprotection was achieved by supplementing this drop with additional PEG400 to a final concentration of 5 % w/v PEG400 in reservoir condition. The sample was cryocooled by plunging into liquid nitrogen. |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.49 | 50.6 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 67.451 | α = 90 |
b = 99.13 | β = 90 |
c = 100.626 | γ = 90 |
Symmetry | |
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Space Group | P 21 21 21 |
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 9M | 2022-07-10 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | APS BEAMLINE 17-ID | 1.000 | APS | 17-ID |
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 | 2.002 | 70.618 | 85.8 | 0.1259 | 0.1371 | 0.0537 | 0.998 | 9.73 | 6.49 | 25441 |
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) | ||||||||
2.002 | 2.219 | 63.3 | 0.8326 | 0.9085 | 0.3588 | 0.595 | 2.17 | 6.22 | 1272 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | 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 | 2.002 | 31.77 | 25433 | 1199 | 55.1 | 0.2369 | 0.2352 | 0.2707 | RANDOM | 40.35 |
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] | |
-4.1316 | 12.6158 | -8.4842 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
t_other_torsion | 14.97 |
t_omega_torsion | 3.68 |
t_angle_deg | 0.65 |
t_bond_d | 0.008 |
t_dihedral_angle_d | |
t_gen_planes | |
t_it | |
t_chiral_improper_torsion | |
t_ideal_dist_contact |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 4624 |
Nucleic Acid Atoms | |
Solvent Atoms | 152 |
Heterogen Atoms | 81 |
Software
Software | |
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Software Name | Purpose |
BUSTER | refinement |
XDS | data reduction |
Aimless | data scaling |
autoPROC | data processing |
PHASER | phasing |