7ZB6
Crystal Structure of SARS-CoV-2 Main Protease (Mpro) variant C44S at 2.12 A resolution
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 | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 293 | PEG3350, DMSO, Sodium citrate, MES |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.35 | 47.65 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 122.881 | α = 90 |
b = 81.358 | β = 90.04 |
c = 63.563 | γ = 90 |
Symmetry | |
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Space Group | C 1 2 1 |
Diffraction
Diffraction Experiment | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 | 2021-03-06 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | PETRA III, EMBL c/o DESY BEAMLINE P14 (MX2) | 0.82656 | PETRA III, EMBL c/o DESY | P14 (MX2) |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | 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 | 2.12 | 67.837 | 91.9 | 0.052 | 0.994 | 7.6 | 7.1 | 22618 | 45.48 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | Rpim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||
1 | 2.12 | 2.352 | 61.7 | 0.66 | 0.432 | 1.4 | 7.4 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 | 6LU7 | 2.12 | 46.39 | 1.35 | 22608 | 1151 | 63.48 | 0.2628 | 0.2608 | 0.2977 | 69.79 |
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 | 16.3733 |
f_angle_d | 0.6141 |
f_chiral_restr | 0.0596 |
f_bond_d | 0.0041 |
f_plane_restr | 0.0031 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 4734 |
Nucleic Acid Atoms | |
Solvent Atoms | 73 |
Heterogen Atoms | 4 |
Software
Software | |
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Software Name | Purpose |
PHENIX | refinement |
autoPROC | data processing |
MOLREP | phasing |
XDS | data reduction |
Aimless | data scaling |