4HUQ

Crystal Structure of a transporter

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	Energy-coupling factor transporter ATP-binding protein EcfA 1	polymer	290	32176.5	1	UniProt (Q03PY6) Pfam (PF00005)	Lactobacillus brevis	ECF transporter A component EcfA 1
2	B (B)	Energy-coupling factor transporter ATP-binding protein EcfA 2	polymer	279	30550.4	1	UniProt (Q03PY5) Pfam (PF00005)	Lactobacillus brevis	ECF transporter A component EcfA 2
3	C (S)	Uncharacterized protein	polymer	174	19461.6	1	UniProt (Q03S56) Pfam (PF12822)	Lactobacillus brevis
4	D (T)	Energy-coupling factor transporter transmembrane protein EcfT	polymer	280	31939.8	1	UniProt (Q03PY7) Pfam (PF02361)	Lactobacillus brevis	ECF transporter T component EcfT
5	E, F, G, H (A, B, S, T)	water	water		18.0	26	Chemie (HOH)

Sequence modifications

T: 1 - 266 (UniProt: Q03PY7)

PDB	External Database	Details
Met -13	-	expression tag
Gly -12	-	expression tag
Ser -11	-	expression tag
Ser -10	-	expression tag
His -9	-	expression tag
His -8	-	expression tag
His -7	-	expression tag
His -6	-	expression tag
His -5	-	expression tag
His -4	-	expression tag
Ser -3	-	expression tag
Gln -2	-	expression tag
Asp -1	-	expression tag
Pro 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	114128.3
All*	Total formula weight	114128.3

*Water molecules are not included.