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THE STRUCTURE OF ESCHERICHIA COLI NITROREDUCTASE COMPLEXED WITH NICOTINIC ACID

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)	OXYGEN-INSENSITIVE NAD(P)H NITROREDUCTASE	polymer	217	23937.2	4	UniProt (P38489) Pfam (PF00881)	Escherichia coli	DIHYDROPTERIDINE REDUCTASE
2	E, H, I, L (A, B, C, D)	FLAVIN MONONUCLEOTIDE	non-polymer		456.3	4	Chemie (FMN)
3	F, G, J, K (A, B, C, D)	NICOTINIC ACID	non-polymer		123.1	4	Chemie (NIO)
4	M, N, O, P (A, B, C, D)	water	water		18.0	139	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	95748.7
Non-Polymers*	Number of molecules	8
	Total formula weight	2317.8
All*	Total formula weight	98066.5

*Water molecules are not included.