5TRD

Structure of RbkR (Riboflavin Kinase) from Thermoplasma acidophilum determined in complex with CTP and its cognate DNA operator

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)	Riboflavin kinase	polymer	230	26245.1	2	UniProt (Q9HJA6) Pfam (PF13545) Pfam (PF01982)	Thermoplasma acidophilum	RFK,CTP-dependent riboflavin kinase,CTP:riboflavin 5'-phosphotransferase,Flavokinase
2	C (G)	DNA (5'-D(*AP*TP*TP*AP*CP*TP*AP*AP*TP*TP*CP*AP*CP*GP*AP*GP*TP*AP*A)-3')	polymer	19	5811.8	1		Thermoplasma acidophilum
3	D (H)	DNA (5'-D(P*TP*TP*TP*AP*CP*TP*CP*GP*TP*GP*AP*AP*TP*TP*AP*GP*TP*AP*A)-3')	polymer	19	5833.8	1		Thermoplasma acidophilum
4	E, G (A, B)	CYTIDINE-5'-TRIPHOSPHATE	non-polymer		483.2	2	Chemie (CTP)
5	F, H (A, B)	SODIUM ION	non-polymer		23.0	2	Chemie (NA)
6	I, J, K, L (A, B, G, H)	water	water		18.0	395	Chemie (HOH)

Sequence modifications

A, B: 2 - 220 (UniProt: Q9HJA6)

PDB	External Database	Details
Met -1	-	initiating methionine
Ser 0	-	expression tag
Leu 1	-	expression tag
Glu 221	-	expression tag
Gly 222	-	expression tag
His 223	-	expression tag
His 224	-	expression tag
His 225	-	expression tag
His 226	-	expression tag
His 227	-	expression tag
His 228	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	64135.8
Non-Polymers*	Number of molecules	4
	Total formula weight	1012.3
All*	Total formula weight	65148.0

*Water molecules are not included.