4LEN

CTX-M-9 in complex with the broad spectrum inhibitor 3-(2- carboxyvinyl)benzo(b)thiophene-2-boronic acid

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	263	27972.5	2	UniProt (Q9L5C8) Pfam (PF00144) Pfam (PF13354) In PDB	Escherichia coli	Beta-lactamase CTX-M, Beta-lactamase CTX-M-9a, Betalactamase CTX-M-9, CTX-M-9 beta-lactamase, CTX-M-9 extended-spectrum beta-lactamase
2	A, B	(2E)-3-[2-(dihydroxyboranyl)-1-benzothiophen-3-yl]prop-2-enoic acid	non-polymer		248.1	2	Chemie (2GK)
3		water	water		18.0	774	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	55945.0
Non-Polymers*	Number of molecules	2
	Total formula weight	496.1
All*	Total formula weight	56441.1

*Water molecules are not included.