5KBW

Crystal structure of TmRibU, the riboflavin-binding S subunit from the Thermotoga maritima ECF transporter

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Riboflavin transporter RibU	polymer	181	19797.9	2	UniProt (Q9X1G6) Pfam (PF12822) In PDB	Thermotoga maritima	Riboflavin ECF transporter S component RibU
2	A, B	RIBOFLAVIN	non-polymer		376.4	2	Chemie (RBF)
3		water	water		18.0	6	Chemie (HOH)

Sequence modifications

A, B: 2 - 173 (UniProt: Q9X1G6)

PDB	External Database	Details
Met 0	-	initiating methionine
Gly 1	-	expression tag
Ser 174	-	expression tag
Asn 175	-	expression tag
Ser 176	-	expression tag
Leu 177	-	expression tag
Val 178	-	expression tag
Pro 179	-	expression tag
Arg 180	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	39595.7
Non-Polymers*	Number of molecules	2
	Total formula weight	752.7
All*	Total formula weight	40348.4

*Water molecules are not included.