8WSH

Crystal structure of SARS-Cov-2 main protease, pH=4.0

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)	Replicase polyprotein 1ab	polymer	298	33061.8	2	UniProt (P0DTD1) Pfam (PF05409)	Severe acute respiratory syndrome coronavirus 2
2	C, D (A, B)	water	water		18.0	160	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	66123.5
All*	Total formula weight	66123.5

*Water molecules are not included.