1OAH

Cytochrome c Nitrite Reductase from Desulfovibrio desulfuricans ATCC 27774: The relevance of the two calcium sites in the structure of the catalytic subunit (NrfA).

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)	CYTOCHROME C NITRITE REDUCTASE	polymer	519	59232.3	2	UniProt (Q8VNU2) Pfam (PF02335)	DESULFOVIBRIO DESULFURICANS
2	C, D, E, F, G... (A, B)	HEME C	non-polymer		618.5	10	Chemie (HEC)
3	H, I, T, U (A, B)	CALCIUM ION	non-polymer		40.1	4	Chemie (CA)
4	J, M, N, V (A, B)	CHLORIDE ION	non-polymer		35.5	4	Chemie (CL)
5	K, L (A)	ZINC ION	non-polymer		65.4	2	Chemie (ZN)
6	W, X (A, B)	water	water		18.0	499	Chemie (HOH)

Sequence modifications

A, B: 1 - 514 (UniProt: Q8VNU2)
A, B: 515 - 519 (PDB: 1OAH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	118464.6
Non-Polymers*	Number of molecules	20
	Total formula weight	6618.0
All*	Total formula weight	125082.5

*Water molecules are not included.