3SD9

Crystal structure of serratia fonticola SFH-I: Source of the nucleophile in the catalytic mechanism of mono-zinc metallo-beta-lactamases

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Beta-lactamase	polymer	233	26294.8	2	UniProt (Q9RMI1) Pfam (PF00753) In PDB	Serratia fonticola
2	A, B	ZINC ION	non-polymer		65.4	2	Chemie (ZN)
3		water	water		18.0	266	Chemie (HOH)

Sequence modifications

A, B: 39 - 306 (UniProt: Q9RMI1)

PDB	External Database	Details
Met 38	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	52589.7
Non-Polymers*	Number of molecules	2
	Total formula weight	130.8
All*	Total formula weight	52720.5

*Water molecules are not included.