5OM9

Crystal structure of the human CARBOXYPEPTIDASE A1 in complex with a thiirane mechanism-based inhibitor

Replaces:  4UF4

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)	Carboxypeptidase A1	polymer	419	47190.0	2	UniProt (P15085) Pfam (PF02244) Pfam (PF00246)	Homo sapiens (Human)
2	C, E (A, B)	(2~{R})-4-methyl-2-[(1~{S})-1-sulfanylethyl]pentanoic acid	non-polymer		176.3	2	Chemie (O2S)
3	D, F, G (A, B)	ZINC ION	non-polymer		65.4	3	Chemie (ZN)
4	H, I (A, B)	water	water		18.0	443	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	94380.1
Non-Polymers*	Number of molecules	5
	Total formula weight	548.8
All*	Total formula weight	94928.8

*Water molecules are not included.