3FVB

Crystal structure of ferritin (bacterioferritin) from Brucella melitensis

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Bacterioferritin	polymer	182	20881.4	2	UniProt (Q2YKI4) Pfam (PF00210) In PDB	Brucella melitensis biovar Abortus 2308
2	A	PROTOPORPHYRIN IX CONTAINING FE	non-polymer		616.5	1	Chemie (HEM)
3	A, B	FE (III) ION	non-polymer		55.8	3	Chemie (FE)
4	A, B	MAGNESIUM ION	non-polymer		24.3	6	Chemie (MG)
5	A	SODIUM ION	non-polymer		23.0	1	Chemie (NA)
6	A, B	CHLORIDE ION	non-polymer		35.5	3	Chemie (CL)
7	A, B	IMIDAZOLE	non-polymer		69.1	2	Chemie (IMD)
8		water	water		18.0	367	Chemie (HOH)

Sequence modifications

A, B: 1 - 161 (UniProt: Q2YKI4)

PDB	External Database	Details
Met -20	-	expression tag
Ala -19	-	expression tag
His -18	-	expression tag
His -17	-	expression tag
His -16	-	expression tag
His -15	-	expression tag
His -14	-	expression tag
His -13	-	expression tag
Met -12	-	expression tag
Gly -11	-	expression tag
Thr -10	-	expression tag
Leu -9	-	expression tag
Glu -8	-	expression tag
Ala -7	-	expression tag
Gln -6	-	expression tag
Thr -5	-	expression tag
Gln -4	-	expression tag
Gly -3	-	expression tag
Pro -2	-	expression tag
Gly -1	-	expression tag
Ser 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	41762.8
Non-Polymers*	Number of molecules	16
	Total formula weight	1197.4
All*	Total formula weight	42960.2

*Water molecules are not included.