8CYZ

Crystal structure of SARS-CoV-2 Mpro with compound C4

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C, D	3C-like proteinase	polymer	306	33825.5	4	UniProt (P0DTD1) Pfam (PF05409) In PDB	Severe acute respiratory syndrome coronavirus 2	3CL-PRO,3CLp,Main protease,Mpro,Non-structural protein 5,nsp5,SARS coronavirus main proteinase
2	A, B, C, D	N-[(4-chlorothiophen-2-yl)methyl]-2-(isoquinolin-4-yl)-N-[4-(methylsulfanyl)phenyl]acetamide	non-polymer		439.0	4	Chemie (P6I)
3		water	water		18.0	612	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	135302.2
Non-Polymers*	Number of molecules	4
	Total formula weight	1756.0
All*	Total formula weight	137058.2

*Water molecules are not included.