2BQ4

Crystal structure of type I cytochrome c3 from Desulfovibrio africanus

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)	BASIC CYTOCHROME C3	polymer	116	12564.3	2	UniProt (P94691) Pfam (PF02085)	DESULFOVIBRIO AFRICANUS	CYTOCHROME C3
2	C, D, E, F, H... (A, B)	HEME C	non-polymer		618.5	8	Chemie (HEC)
3	G, L (A, B)	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)
4	M, N (A, B)	water	water		18.0	283	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	25128.7
Non-Polymers*	Number of molecules	10
	Total formula weight	5028.2
All*	Total formula weight	30156.9

*Water molecules are not included.