7XHW

Crystal structure of metallo-beta-lactamase IMP-1

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)	Beta-lactamase	polymer	246	27155.1	4	UniProt (K0ITE2) Pfam (PF00753)	Escherichia coli
2	E, F, G, H, I... (A, B, C, D)	ZINC ION	non-polymer		65.4	8	Chemie (ZN)
3	M, N, O, P (A, B, C, D)	water	water		18.0	128	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	108620.6
Non-Polymers*	Number of molecules	8
	Total formula weight	523.3
All*	Total formula weight	109143.9

*Water molecules are not included.