9XKA | pdb_00009xka

Cryo-EM structure of Streptococcus thermophilus FoeAB in complex with AMPPNP

• PDB DOI: https://doi.org/10.2210/pdb9XKA/pdb
• EM Map EMD-66953: EMDB EMDataResource

• Classification: TRANSPORT PROTEIN
• Organism(s): Streptococcus thermophilus
• Expression System: Escherichia coli B
• Mutation(s): No 


• Deposited: 2025-11-05 Released: 2026-06-03 
• Deposition Author(s): Tanabe, M., Taguchi, A., Moriya, T., Nishino, K.
• Funding Organization(s): Japan Society for the Promotion of Science (JSPS), Japan Agency for Medical Research and Development (AMED)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 2.90 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Structural insights into fosfomycin efflux by a streptococcal ABC transporter

Taguchi, A., Fujita, J., Tanabe, M., Takaya, D., Harada, K., Moriya, T., Fukuzawa, K., Namba, K., Nishino, K.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 Pseudo Symmetry: Cyclic - C2  (Explore in 3D)
Pseudo Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Macromolecule Content 

• Total Structure Weight: 134.27 kDa 
• Atom Count: 9,109 
• Modeled Residue Count: 1,145 
• Deposited Residue Count: 1,192 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Lipid/multidrug/protein-type ABC exporter, ATP binding/membrane-spanning protein	A	610	Streptococcus thermophilus	Mutation(s): 0  Gene Names: stu0758
UniProt
Find proteins for Q5M4V8 (Streptococcus thermophilus (strain ATCC BAA-250 / LMG 18311)) Explore Q5M4V8  Go to UniProtKB:  Q5M4V8

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Lipid/multidrug/protein-type ABC exporter, ATP binding/membrane-spanning protein	B	582	Streptococcus thermophilus	Mutation(s): 0  Gene Names: stu0759
UniProt
Find proteins for Q5M4V7 (Streptococcus thermophilus (strain ATCC BAA-250 / LMG 18311)) Explore Q5M4V7  Go to UniProtKB:  Q5M4V7

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ANP (Subject of Investigation/LOI)	C [auth A]	PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER C10 H17 N6 O12 P3 PVKSNHVPLWYQGJ-KQYNXXCUSA-N
MG (Subject of Investigation/LOI)	D [auth A]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 2.90 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
RECONSTRUCTION	RELION	4.0
MODEL REFINEMENT	PHENIX	1.21_5207

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2026-06-03 
Deposition Author(s): Tanabe, M., Taguchi, A., Moriya, T., Nishino, K.

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Funding Organization	Location	Grant Number
Japan Society for the Promotion of Science (JSPS)	Japan	21K20759
Japan Society for the Promotion of Science (JSPS)	Japan	23K14518
Japan Society for the Promotion of Science (JSPS)	Japan	25K02496
Japan Agency for Medical Research and Development (AMED)	Japan	JP23nk0101653
Japan Agency for Medical Research and Development (AMED)	Japan	JP25ama121001
Japan Agency for Medical Research and Development (AMED)	Japan	JP25ama121030,

Revision History  

• Version 1.0: 2026-06-03
  Type: Initial release