9FXC

Cryo-EM structure of IrtAB in inward-facing state in nanodisc

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	Mycobactin import ATP-binding/permease protein IrtA	polymer	901	97496.5	1	UniProt (G7CBF5) Pfam (PF08021) Pfam (PF04954) Pfam (PF00664) Pfam (PF00005)	Mycolicibacterium thermoresistibile ATCC 19527
2	B (B)	Mycobactin import ATP-binding/permease protein IrtB	polymer	586	61559.5	1	UniProt (G7CBF6) Pfam (PF00005)	Mycolicibacterium thermoresistibile ATCC 19527
3	C, D (A, B)	PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER	non-polymer		523.2	2	Chemie (AGS)

Sequence modifications

A: 10 - 908 (UniProt: G7CBF5)

PDB	External Database	Details
Met 8	-	initiating methionine
Ser 9	-	expression tag

B: 1 - 579 (UniProt: G7CBF6)

PDB	External Database	Details
Ala 580	-	expression tag
Leu 581	-	expression tag
Glu 582	-	expression tag
Val 583	-	expression tag
Leu 584	-	expression tag
Phe 585	-	expression tag
Gln 586	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	159056.1
Non-Polymers*	Number of molecules	2
	Total formula weight	1046.5
All*	Total formula weight	160102.6

*Water molecules are not included.