8I8E

Acyl-ACP synthetase structure bound to C18:1-ACP

• PDB DOI: https://doi.org/10.2210/pdb8I8E/pdb
• EM Map EMD-35249: EMDB EMDataResource

• Classification: TRANSPORT PROTEIN/CYTOSOLIC PROTEIN
• Organism(s): Escherichia coli, Vibrio harveyi
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2023-02-04 Released: 2024-02-07 
• Deposition Author(s): Huang, H., Wang, C., Chang, S., Cui, T., Xu, Y., Zhang, H., Zhou, C., Zhang, X., Feng, Y.
• Funding Organization(s): National Natural Science Foundation of China (NSFC)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 2.63 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Structure and catalytic mechanism of exogenous fatty acid recycling by AasS, a versatile acyl-ACP synthetase

Huang, H., Wang, C., Chang, S., Cui, T., Xu, Y., Zhang, H., Zhou, C., Zhang, X., Feng, Y.

(2025) Nat Struct Mol Biol 

• DOI: https://doi.org/10.1038/s41594-024-01464-7

Biological Assembly 1  

Global Symmetry: Dihedral - D3  (Explore in 3D)
Global Stoichiometry: Hetero 12-mer - A6B6 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: electron microscopy

Macromolecule Content

• Total Structure Weight: 420.67 kDa 
• Atom Count: 29,058 
• Modelled Residue Count: 3,612 
• Deposited Residue Count: 3,666 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Acyl carrier protein	A [auth f], H [auth a], I [auth b], J [auth c], K [auth d], L [auth e]	78	Escherichia coli	Mutation(s): 0  Gene Names: acpP, ECIG_00735
UniProt
Find proteins for P0A6A8 (Escherichia coli (strain K12)) Explore P0A6A8  Go to UniProtKB:  P0A6A8

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Acyl-acyl carrier protein synthetase	B [auth D], C [auth A], D [auth F], E [auth B], F [auth C], G [auth E]	533	Vibrio harveyi	Mutation(s): 0  Gene Names: aasS, AL538_21690
UniProt
Find proteins for Q00IB3 (Vibrio harveyi) Explore Q00IB3  Go to UniProtKB:  Q00IB3

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
AMP (Subject of Investigation/LOI)	M [auth D], O [auth A], R [auth F], S [auth B], U [auth C], W [auth E]	ADENOSINE MONOPHOSPHATE C10 H14 N5 O7 P UDMBCSSLTHHNCD-KQYNXXCUSA-N
OLA (Subject of Investigation/LOI)	N [auth D], P [auth A], Q [auth F], T [auth B], V [auth C], X [auth E]	OLEIC ACID C18 H34 O2 ZQPPMHVWECSIRJ-KTKRTIGZSA-N

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
4HH	A [auth f], H [auth a], I [auth b], J [auth c], K [auth d], L [auth e]	L-PEPTIDE LINKING	C14 H28 N3 O9 P S		SER

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 2.63 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-02-07 
Deposition Author(s): Huang, H., Wang, C., Chang, S., Cui, T., Xu, Y., Zhang, H., Zhou, C., Zhang, X., Feng, Y.

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Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	32125003

Revision History  

• Version 1.0: 2024-02-07
  Type: Initial release
  
• Version 1.1: 2024-04-03
  Changes: Database references, Structure summary
• Version 2.0: 2025-01-15
  Changes: Atomic model, Author supporting evidence, Data collection, Database references, Derived calculations, Non-polymer description, Polymer sequence, Source and taxonomy, Structure summary