3L1T

E. coli NrfA sulfite ocmplex

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 (A, B, C, D)	Cytochrome c-552	polymer	452	50668.1	4	UniProt (P0ABK9) Pfam (PF02335)	Escherichia coli	Ammonia-forming cytochrome c nitrite reductase, Cytochrome c nitrite reductase
2	AA, E, F, NA, O... (C, A, D, B)	CALCIUM ION	non-polymer		40.1	8	Chemie (CA)
3	BA, CA, DA, EA, FA... (C, A, D, B)	HEME C	non-polymer		618.5	20	Chemie (HEC)
4	GA, L, UA, V, W (C, A, D, B)	SULFITE ION	non-polymer		80.1	5	Chemie (SO3)
5	HA, IA, JA, KA, LA... (C, A, D, B)	1,2-ETHANEDIOL	non-polymer		62.1	12	Chemie (EDO)
6	AB, XA, YA, ZA (D, A, B, C)	water	water		18.0	957	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	202672.5
Non-Polymers*	Number of molecules	45
	Total formula weight	13835.8
All*	Total formula weight	216508.3

*Water molecules are not included.