2IPH

X-ray Structure at 1.75 A Resolution of a Norovirus Protease Linked to an Active Site Directed Peptide Inhibitor

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Thiol protease P3C	polymer	181	19305.3	2	UniProt (Q04544) In PDB	Southampton virus (serotype 3)	3C-like protease, 3C-pro
2	A, B	N-ACETYL-L-ALPHA-GLUTAMYL-L-PHENYLALANYL-L-GLUTAMINYL-N-[(1S)-4-AMINO-1-(2-CARBOXYETHYL)-4-OXOBUTYL]-L-LEUCINAMIDE	non-polymer		733.8	2	Chemie (LGG)
3		water	water		18.0	247	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	38610.5
Non-Polymers*	Number of molecules	2
	Total formula weight	1467.6
All*	Total formula weight	40078.2

*Water molecules are not included.