Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A, B (A, B) | 3C-like proteinase nsp5 | polymer | 306 | 33825.5 | 2 | UniProt (P0DTC1) Pfam (PF05409) | Severe acute respiratory syndrome coronavirus 2 | 3CL-PRO,3CLp,Main protease,Mpro,Non-structural protein 5,nsp5,SARS coronavirus main proteinase |
| 2 | C, F (A, B) | (2~{R})-2-[2-(benzotriazol-1-yl)ethanoyl-methyl-amino]-2-(3-fluorophenyl)ethanamide | non-polymer | 341.3 | 2 | Chemie (A1JGI) | |||
| 3 | D (B) | SULFATE ION | non-polymer | 96.1 | 1 | Chemie (SO4) | |||
| 4 | E (B) | SODIUM ION | non-polymer | 23.0 | 1 | Chemie (NA) | |||
| 5 | G, H (A, B) | water | water | 18.0 | 340 | Chemie (HOH) |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 2 |
| Total formula weight | 67651.1 | |
| Non-Polymers* | Number of molecules | 4 |
| Total formula weight | 801.7 | |
| All* | Total formula weight | 68452.8 |
