9HJX | pdb_00009hjx

Structure of the Thermus termophillus transhydrogenase

• PDB DOI: https://doi.org/10.2210/pdb9HJX/pdb
• EM Map EMD-52228: EMDB EMDataResource

• Classification: MEMBRANE PROTEIN
• Organism(s): Thermus thermophilus
• Expression System: Thermus thermophilus
• Mutation(s): No 


• Deposited: 2024-12-02 Released: 2026-06-17 
• Deposition Author(s): Trasnea, P.I., Sazanov, L.
• Funding Organization(s): European Research Council (ERC)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.39 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Starting Model: other

Literature

Structure of the Thermus termophillus transhydrogenase

Trasnea, P.I., Sazanov, L.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 6-mer - A2B2C2 Local Symmetry: Cyclic - C2  (Explore in 3D)
Local Stoichiometry: Hetero 4-mer - A2C2 

Local Symmetry: Cyclic - C2  (Explore in 3D)
Local Stoichiometry: Hetero 4-mer - A2C2 

Biological assembly 1 assigned by authors and generated by (software)

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 195.1 kDa 
• Atom Count: 13,147 
• Modeled Residue Count: 1,756 
• Deposited Residue Count: 1,830 
• Unique protein chains: 3

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
proton-translocating NAD(P)(+) transhydrogenase	A, D	92	Thermus thermophilus	Mutation(s): 0  Gene Names: TthAA11_01930, TthHB5018_01710 EC: 7.1.1.1
UniProt
Find proteins for A0A510HPH9 (Thermus thermophilus) Explore A0A510HPH9  Go to UniProtKB:  A0A510HPH9

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
NAD(P) transhydrogenase subunit beta	B, E	450	Thermus thermophilus	Mutation(s): 0  Gene Names: TthHB5018_01700 EC: 7.1.1.1
UniProt
Find proteins for A0A7R7TBV0 (Thermus thermophilus) Explore A0A7R7TBV0  Go to UniProtKB:  A0A7R7TBV0

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
proton-translocating NAD(P)(+) transhydrogenase	C, F	373	Thermus thermophilus	Mutation(s): 0  Gene Names: TthHB5018_01720 EC: 7.1.1.1
UniProt
Find proteins for A0A7R7TBU1 (Thermus thermophilus) Explore A0A7R7TBU1  Go to UniProtKB:  A0A7R7TBU1

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NAP (Subject of Investigation/LOI)	G [auth B]	NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE C21 H28 N7 O17 P3 XJLXINKUBYWONI-NNYOXOHSSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.39 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX	dev_4933

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2026-06-17 
Deposition Author(s): Trasnea, P.I., Sazanov, L.

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Funding Organization	Location	Grant Number
European Research Council (ERC)	European Union	101020697

Revision History  

• Version 1.0: 2026-06-17
  Type: Initial release