6XR3
X-ray Structure of SARS-CoV-2 main protease bound to GRL-024-20 at 1.45 A
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 6WNP |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 7.5 | 298 | 2.7 mM DTT, 0.7% MPD, 33 mM MES pH 6.0, 80 mM KCl, 15% PEG 10,000, 17 mM HEPES pH 7.5 |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.85 | 56.87 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 96.182 | α = 90 |
b = 82.698 | β = 116.988 |
c = 54.444 | 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 | CCD | RAYONIX MX-300 | 2020-07-07 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | APS BEAMLINE 21-ID-F | 0.97872 | APS | 21-ID-F |
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 | 1.45 | 100 | 94 | 0.06279 | 0.07421 | 0.03915 | 0.996 | 19.17 | 3.8 | 63149 | 18.62 |
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 | 1.45 | 1.502 | 93.42 | 0.5756 | 0.6663 | 0.3351 | 0.788 | 3.25 | 3.9 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | 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 | 6WNP | 1.45 | 18.08 | 1.35 | 63149 | 2000 | 93.98 | 0.1448 | 0.1434 | 0.1874 | 36.44 |
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] | |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
f_dihedral_angle_d | 21.0231 |
f_angle_d | 0.9832 |
f_chiral_restr | 0.0814 |
f_bond_d | 0.0086 |
f_plane_restr | 0.007 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 2358 |
Nucleic Acid Atoms | |
Solvent Atoms | 310 |
Heterogen Atoms | 41 |
Software
Software | |
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Software Name | Purpose |
PHENIX | refinement |
HKL-2000 | data reduction |
SCALEPACK | data scaling |
PHENIX | phasing |