9X4C | pdb_00009x4c

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

• PDB DOI: https://doi.org/10.2210/pdb9X4C/pdb
• EM Map EMD-66537: EMDB EMDataResource

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


• Deposited: 2025-10-10 Released: 2026-06-03 
• Deposition Author(s): Taguchi, A., Fujita, J., Namba, K., Nishino, K.
• Funding Organization(s): Japan Society for the Promotion of Science (JSPS), Other private

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.08 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Starting Model: in silico

Literature

Structural insights into fosfomycin efflux by a streptococcal ABC transporter

Taguchi, A., Fujita, J., 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: electron microscopy

Macromolecule Content 

• Total Structure Weight: 134.27 kDa 
• Atom Count: 9,073 
• Modeled Residue Count: 1,142 
• 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: 3.08 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX	1.19.1-4122
RECONSTRUCTION	cryoSPARC	4.2.1

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2026-06-03 
Deposition Author(s): Taguchi, A., Fujita, J., Namba, K., Nishino, K.

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Funding Organization	Location	Grant Number
Japan Society for the Promotion of Science (JSPS)	Japan	23K14518
Other private		--

Revision History  

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