7QBB
Crystal Structure of SARS-CoV-2 main protease (Nsp5) in complex with compound 18
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords | 
| 1 | A (A)  | 3C-like proteinase nsp5 | polymer | 306 | 33825.5 | 1 | UniProt (P0DTD1) Pfam (PF05409)  | Severe acute respiratory syndrome coronavirus 2 | 3CL-PRO,3CLp,Main protease,Mpro,Non-structural protein 5,nsp5,SARS coronavirus main proteinase | 
| 2 | B, D (A)  | DIMETHYL SULFOXIDE | non-polymer | 78.1 | 2 | Chemie (DMS) | |||
| 3 | C (A)  | 7-isoquinolin-4-yl-2-phenyl-5,7-diazaspiro[3.4]octane-6,8-dione | non-polymer | 343.4 | 1 | Chemie (V1B) | |||
| 4 | E (A)  | water | water | 18.0 | 18 | Chemie (HOH) | 
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 1 | 
| Total formula weight | 33825.5 | |
| Non-Polymers* | Number of molecules | 3 | 
| Total formula weight | 499.6 | |
| All* | Total formula weight | 34325.2 | 






