3E1O

Crystal structure of E. coli Bacterioferritin (BFR) with two ZN(II) ION sites at the Ferroxidase centre (ZN-BFR).

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, E...	BACTERIOFERRITIN	polymer	158	18518.0	12	UniProt (P0ABD3) Pfam (PF00210) In PDB	ESCHERICHIA COLI	BFR, CYTOCHROME B-1, CYTOCHROME B-557
2	E, L, F, G, A...	SULFATE ION	non-polymer		96.1	16	Chemie (SO4)
3	D, K, E, L, F...	ZINC ION	non-polymer		65.4	24	Chemie (ZN)
4	D, K, E, A, H...	PROTOPORPHYRIN IX CONTAINING FE	non-polymer		616.5	6	Chemie (HEM)
5		water	water		18.0	214	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	12
	Total formula weight	222216.2
Non-Polymers*	Number of molecules	46
	Total formula weight	6805.7
All*	Total formula weight	229021.9

*Water molecules are not included.