6FNP

Crystal structure of ECF-CbrT, a cobalamin transporter

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, E	Membrane protein	polymer	182	20378.4	2	UniProt (A0A061BRW7) Pfam (PF12822) UniProt (by SIFTS) (Q1G7W0) In PDB	Lactobacillus delbrueckii	Predicted membrane protein,Substrate-specific component CbrT of predicted cobalamin ECF transporter
2	B, F	Energy-coupling factor transporter ATP-binding protein EcfA1	polymer	300	33166.4	2	UniProt (Q1GBJ0) Pfam (PF00005) In PDB	Lactobacillus delbrueckii	ECF transporter A component EcfA1
3	C, G	Energy-coupling factor transporter ATP-binding protein EcfA2	polymer	287	31672.2	2	UniProt (Q1GBI9) Pfam (PF00005) In PDB	Lactobacillus delbrueckii	ECF transporter A component EcfA2
4	D, H	Energy-coupling factor transporter transmembrane protein EcfT	polymer	265	30290.3	2	UniProt (A0A061BSU4) Pfam (PF02361) UniProt (by SIFTS) (Q1GBI8) In PDB	Lactobacillus delbrueckii	ECF transporter T component EcfT

Sequence modifications

B, F: 2 - 282 (UniProt: Q1GBJ0)

PDB	External Database	Details
Met -17	-	initiating methionine
His -16	-	expression tag
His -15	-	expression tag
His -14	-	expression tag
His -13	-	expression tag
His -12	-	expression tag
His -11	-	expression tag
His -10	-	expression tag
His -9	-	expression tag
His -8	-	expression tag
His -7	-	expression tag
Gly -6	-	expression tag
Glu -5	-	expression tag
Asn -4	-	expression tag
Leu -3	-	expression tag
Tyr -2	-	expression tag
Phe -1	-	expression tag
Gln 0	-	expression tag
Gly 1	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	8
	Total formula weight	231014.5
All*	Total formula weight	231014.5

*Water molecules are not included.