8IGN

Crystal structure of SARS-CoV-2 main protease in complex with RAY1216

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (B, A)	3C-like proteinase nsp5	polymer	306	33825.5	2	UniProt (P0DTC1) Pfam (PF05409) UniProt (by SIFTS) (P0DTD1)	Severe acute respiratory syndrome coronavirus 2 (2019-nCoV SARS-CoV-2)	3CL-PRO,3CLp,Main protease,Mpro,Non-structural protein 5,nsp5,SARS coronavirus main proteinase
2	C, D (B, A)	(3~{S},3~{a}~{S},6~{a}~{R})-2-[(2~{S})-2-cyclohexyl-2-[2,2,2-tris(fluoranyl)ethanoylamino]ethanoyl]-~{N}-[(2~{S},3~{R})-4-(cyclopentylamino)-3-oxidanyl-4-oxidanylidene-1-[(3~{S})-2-oxidanylidenepyrrolidin-3-yl]butan-2-yl]-3,3~{a},4,5,6,6~{a}-hexahydro-1~{H}-cyclopenta[c]pyrrole-3-carboxamide	non-polymer		641.7	2	Chemie (7ON)
3	E, F (B, A)	water	water		18.0	255	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	67651.1
Non-Polymers*	Number of molecules	2
	Total formula weight	1283.4
All*	Total formula weight	68934.5

*Water molecules are not included.