7CIN

Crystal structure of the extended-spectrum class C beta-lactamase AmpC BER with the ordered R2 loop

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)	Beta-lactamase	polymer	366	40556.0	2	UniProt (A7TUE6) Pfam (PF00144)	Escherichia coli K-12
2	C, D, E (A, B)	SULFATE ION	non-polymer		96.1	3	Chemie (SO4)
3	F, G (A, B)	water	water		18.0	540	Chemie (HOH)

Sequence modifications

A, B: 2 - 360 (UniProt: A7TUE6)

PDB	External Database	Details
Met -5	-	expression tag
His -4	-	expression tag
His -3	-	expression tag
His -2	-	expression tag
His -1	-	expression tag
His 0	-	expression tag
His 1	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	81112.1
Non-Polymers*	Number of molecules	3
	Total formula weight	288.2
All*	Total formula weight	81400.3

*Water molecules are not included.