Joint X-ray/neutron structure of SARS-CoV-2 main protease (Mpro) in complex with Mcule5948770040
X-RAY DIFFRACTION - NEUTRON DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 7LTJ | |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 7 | 293 | 18% PEG3350, 0.1 M Bis-Tris pH 7.0 reservoir solution and 0.2 microL microseeds at 1:200 dilution |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.93 | 57.95 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 55.314 | α = 90 |
| b = 81.301 | β = 96.46 |
| c = 88.578 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | I 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 | 293 | PIXEL | DECTRIS EIGER R 4M | OSMIC VARIMAX | 2021-03-10 | M | SINGLE WAVELENGTH | |||||
| 2 | 1 | neutron | 293 | AREA DETECTOR | ORNL ANGER CAMERA | COLLIMATORS | 2021-03-03 | L | LAUE | |||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | ROTATING ANODE | RIGAKU MICROMAX-007 HF | 1.54 | ||
| 2 | SPALLATION SOURCE | ORNL Spallation Neutron Source BEAMLINE MANDI | 2.00-4.16 | ORNL Spallation Neutron Source | MANDI |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | R Sym I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | R Split (All) | 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 | 2.2 | 59.72 | 96.3 | 0.107 | 0.055 | 0.992 | 11.4 | 4.7 | 19108 | ||||||||||
| 2 | 2.5 | 12.86 | 85.6 | 0.212 | 0.096 | 0.946 | 15.6 | 5.5 | 11534 | ||||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | R Merge I (Observed) | R-Sym I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | R Split (All) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||
| 1 | 2.2 | 2.27 | 0.602 | 0.686 | 1.6 | 4.8 | |||||||||||||
| 2 | 2.5 | 2.59 | 0.283 | 5.8 | 5.6 | ||||||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Resolution (High) | Resolution (Low) | Cut-off Sigma (I) | Cut-off Sigma (F) | Number Reflections (All) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (All) | R-Factor (Observed) | R-Work (Depositor) | R-Work (DCC) | R-Free (Depositor) | R-Free (DCC) | R-Free Selection Details | Mean Isotropic B | ||
| X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | 2.2 | 25.9 | 2.5 | 17476 | 856 | 88.1 | 0.177 | 0.1682 | 0.192 | 0.1895 | RANDOM | 44.13 | ||||||
| NEUTRON DIFFRACTION | MOLECULAR REPLACEMENT | 2.5 | 12.86 | 2.5 | 11532 | 577 | 84.9 | 0.187 | 0.211 | RANDOM | 44.13 | ||||||||
| 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 | |
|---|---|
| Key | Refinement Restraint Deviation |
| x_torsion_deg | 27.1 |
| x_torsion_deg | 27.1 |
| x_angle_deg | 1.1 |
| x_angle_deg | 1.1 |
| x_torsion_impr_deg | 0.86 |
| x_torsion_impr_deg | 0.86 |
| x_bond_d | 0.008 |
| x_bond_d | 0.008 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 2368 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 99 |
| Heterogen Atoms | 24 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| nCNS | refinement |
| CrysalisPro | data reduction |
| CrysalisPro | data scaling |
| PHASER | phasing |
| nCNS | phasing |
| Mantid | data reduction |
| LAUENORM | data scaling |














