Table 1 X-ray crystallographic data collection and refinement statistics.
From: Identification of SARS-CoV-2 inhibitors targeting Mpro and PLpro using in-cell-protease assay
| Â | Apo-form 1 | Apo-form 2 | Mpro - Calpain I |
|---|---|---|---|
PDB code | 7LKE | 7LKD | 7LBN |
Data collection | |||
 Wavelength | 0.9687 | 0.9687 | 1.130 |
 Space group | C2 | P21 | C2 |
 a, b, c (Å) | 111.303, 53.227, 44.381 | 44.307, 53.703, 113.933 | 97.481, 80.729, 51.579 |
 α, β, γ (°) | 90, 101.756, 90 | 90, 101.012, 90 | 90, 90, 90 |
 Resolution (Å) | 50.00–2.70 (2.80–2.70)a | 50.00–2.00 (2.03–2.00)a | 50.00–1.76 (1.79–1.76)a |
 Rmerge (%) | 10.4 (69.5)a | 8.9 (94.6)a | 3.8 (29.5)a |
 I / σI | 11.6 (1.4)a | 21.5 (1.6)a | 38.4 (3.9)a |
 Completeness (%) | 92.8 (76.3)a | 99.8 (99.9) | 97.0 (72.4)a |
 Redundancy | 2.9 (2.5)a | 4.3 (3.9)a | 3.2 (2.4)a |
 CC1/2 | 0.982 (0.531)a | 0.993 (0.474)a | 0.995 (0.905)a |
Refinement | |||
 Resolution (Å) | 50.00–2.70 (2.79–2.70)b | 50.00–2.00 (2.08–2.00)b | 50.00–1.76 (1.83–1.76)b |
 No. of reflections | 6591 (472)b | 35,074 (3316)b | 35,055 (3162)b |
 Rwork/Rfree (%) | 22.5/29.3 | 18.2/22.6 | 16.6/19.8 |
No. of atoms | |||
 Protein | 2323 | 4716 | 2332 |
 Ligand | – | – | 63 |
 Water | 0 | 234 | 310 |
 Protein residues | 300 | 610 | 301 |
 B factors (Å2) | 76.65 | 37.02 | 32.13 |
r.m.s. deviations | |||
 Bond lengths (Å) | 0.010 | 0.007 | 0.008 |
 Bond angles (°) | 1.48 | 1.01 | 0.99 |
Ramachandran plot | |||
 Favored (%) | 96.98 | 97.19 | 97.32 |
 Allowed (%) | 2.35 | 2.48 | 2.68 |
 Outliers (%) | 0.67 | 0.33 | 0.0 |
 Clashscore | 10.01 | 6.97 | 5.17 |
 No TLS groups | 3 | 6 | 3 |