9NXC

Cryo-EM structure of a bacterial prototype ATP-binding cassette transporter MalFGK2.

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (H)	Maltose/maltodextrin transport system permease protein MalF	polymer	519	57679.7	1	UniProt (Q8FB38) Pfam (PF20872) Pfam (PF14785) Pfam (PF00528)	Escherichia coli
2	B (I)	Maltose/maltodextrin transport system permease protein MalG	polymer	286	31531.3	1	UniProt (P68185) Pfam (PF00528) UniProt (by SIFTS) (P68183)	Escherichia coli
3	C (C)	Maltose/maltodextrin import ATP-binding protein MalK	polymer	371	40979.2	1	UniProt (P68188) Pfam (PF00005) Pfam (PF08402) UniProt (by SIFTS) (P68187)	Escherichia coli
4	D (D)	Maltose/maltodextrin import ATP-binding protein MalK	polymer	373	41255.5	1	UniProt (P68188) Pfam (PF00005) Pfam (PF08402) UniProt (by SIFTS) (P68187)	Escherichia coli

Sequence modifications

I: 2 - 287 (UniProt: P68185)

PDB	External Database	Details
Trp 50	Ile 50	conflict
Trp 75	Thr 75	conflict

C: 2 - 371 (UniProt: P68188)

PDB	External Database	Details
Ala 372	-	expression tag

D: 2 - 371 (UniProt: P68188)

PDB	External Database	Details
Ala 372	-	expression tag
His 373	-	expression tag
His 374	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	171445.8
All*	Total formula weight	171445.8

*Water molecules are not included.