7KF6

Cryo-electron microscopy structure of the heavy metal efflux pump CusA in a homogeneous binding copper(1) state

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 (A, B, C)	Cation efflux system protein CusA	polymer	1055	115833.9	3	UniProt (P38054) Pfam (PF00873)	Escherichia coli
2	D, E, F (A, B, C)	COPPER (I) ION	non-polymer		63.5	3	Chemie (CU1)

Sequence modifications

A, B, C: 1 - 1047 (UniProt: P38054)

PDB	External Database	Details
Met -7	-	initiating methionine
Gly -6	-	expression tag
His -5	-	expression tag
His -4	-	expression tag
His -3	-	expression tag
His -2	-	expression tag
His -1	-	expression tag
His 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	3
	Total formula weight	347501.8
Non-Polymers*	Number of molecules	3
	Total formula weight	190.6
All*	Total formula weight	347692.5

*Water molecules are not included.