8Q71

Crystal structure of SARS-CoV-2 main protease (MPro) in complex with the inhibitor GC-67

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 nsp5	polymer	306	33825.5	4	UniProt (P0DTD1) Pfam (PF05409) In PDB	Severe acute respiratory syndrome coronavirus	3CL-PRO,3CLp,Main protease,Mpro,Non-structural protein 5,nsp5,SARS coronavirus main proteinase
2	A, B, C, D	(2~{S})-1-(3,4-dichlorophenyl)-4-(4-methoxypyridin-3-yl)carbonyl-~{N}-(thiophen-2-ylmethyl)piperazine-2-carboxamide	non-polymer		505.4	4	Chemie (KKO)
3		water	water		18.0	113	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	2021.7
All*	Total formula weight	137323.9

*Water molecules are not included.