4IQI

Crystal Structure of 7-cyano-7-deazaguanine Reductase, QueF from Vibrio cholerae O1 biovar El Tor complexed with cytosine

Replaces:  3RJB

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)	NADPH-dependent 7-cyano-7-deazaguanine reductase	polymer	290	33315.3	2	UniProt (C3LTF1) Pfam (PF14819) Pfam (PF14489) UniProt (by SIFTS) (Q9KTK0)	Vibrio cholerae O1 biovar El Tor	7-cyano-7-carbaguanine reductase, NADPH-dependent nitrile oxidoreductase, PreQ(0) reductase
2	C, E (A, B)	6-AMINOPYRIMIDIN-2(1H)-ONE	non-polymer		111.1	2	Chemie (CYT)
3	D, F (A, B)	CHLORIDE ION	non-polymer		35.5	2	Chemie (CL)
4	G (B)	SULFATE ION	non-polymer		96.1	1	Chemie (SO4)
5	H, I (A, B)	water	water		18.0	549	Chemie (HOH)

Sequence modifications

A, B: 1 - 287 (UniProt: C3LTF1)

PDB	External Database	Details
Ser -2	-	expression tag
Asn -1	-	expression tag
Ala 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	66630.6
Non-Polymers*	Number of molecules	5
	Total formula weight	389.2
All*	Total formula weight	67019.8

*Water molecules are not included.