9MVK

Co-crystal structure of feline coronavirus UU23 main protease with nirmatrelvir

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 (A, B, C, D)	Peptidase C30	polymer	302	32968.4	4	UniProt (D3KDL2)	Feline coronavirus UU23
2	E, F, I, J (A, B, C, D)	(1R,2S,5S)-N-{(1E,2S)-1-imino-3-[(3S)-2-oxopyrrolidin-3-yl]propan-2-yl}-6,6-dimethyl-3-[3-methyl-N-(trifluoroacetyl)-L-valyl]-3-azabicyclo[3.1.0]hexane-2-carboxamide	non-polymer		501.5	4	Chemie (4WI)
3	G, H (B)	DI(HYDROXYETHYL)ETHER	non-polymer		106.1	2	Chemie (PEG)
4	K, L, M, N (A, B, C, D)	water	water		18.0	967	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	131873.7
Non-Polymers*	Number of molecules	6
	Total formula weight	2218.4
All*	Total formula weight	134092.1

*Water molecules are not included.