Crystal Structure of Acetyl-coenzyme A synthetase from Legionella pneumophila Philadelphia 1 in complex with ethyl-AMP

Experimental Data Snapshot

  • Resolution: 2.40 Å
  • R-Value Free: 0.225 
  • R-Value Work: 0.188 
  • R-Value Observed: 0.190 

Starting Model: experimental
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This is version 1.2 of the entry. See complete history


Bacterial structural genomics target enabled by a recently discovered potent fungal acetyl-CoA synthetase inhibitor.

DeBouver, N.D.Bolejack, M.J.Esan, T.E.Krysan, D.J.Hagen, T.J.Abendroth, J.

(2023) Acta Crystallogr F Struct Biol Commun 

  • DOI: https://doi.org/10.1107/S2053230X23003801
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    The compound ethyl-adenosyl monophosphate ester (ethyl-AMP) has been shown to effectively inhibit acetyl-CoA synthetase (ACS) enzymes and to facilitate the crystallization of fungal ACS enzymes in various contexts. In this study, the addition of ethyl-AMP to a bacterial ACS from Legionella pneumophila resulted in the determination of a co-crystal structure of this previously elusive structural genomics target. The dual functionality of ethyl-AMP in both inhibiting ACS enzymes and promoting crystallization establishes its significance as a valuable resource for advancing structural investigations of this class of proteins.

  • Organizational Affiliation

    UCB Pharma, 7869 NE Day Road West, Bainbridge Island, WA 98102, USA.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Acetyl-coenzyme A synthetase635Legionella pneumophila subsp. pneumophila str. Philadelphia 1Mutation(s): 0 
Gene Names: acsBlpg0127
Find proteins for Q5ZZ84 (Legionella pneumophila subsp. pneumophila (strain Philadelphia 1 / ATCC 33152 / DSM 7513))
Explore Q5ZZ84 
Go to UniProtKB:  Q5ZZ84
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ5ZZ84
Sequence Annotations
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
WTA (Subject of Investigation/LOI)
Query on WTA

Download Ideal Coordinates CCD File 
B [auth A]5'-O-[(S)-ethoxy(hydroxy)phosphoryl]adenosine
C12 H18 N5 O7 P
Query on EDO

Download Ideal Coordinates CCD File 
C [auth A]1,2-ETHANEDIOL
C2 H6 O2
Experimental Data & Validation

Experimental Data

Unit Cell:
Length ( Å )Angle ( ˚ )
a = 74.93α = 90
b = 74.93β = 90
c = 228.79γ = 90
Software Package:
Software NamePurpose
XDSdata reduction
XSCALEdata scaling
PDB_EXTRACTdata extraction
PHENIXmodel building
Cootmodel building

Structure Validation

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Ligand Structure Quality Assessment 

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2021-05-26
    Type: Initial release
  • Version 1.1: 2023-06-07
    Changes: Database references
  • Version 1.2: 2023-10-25
    Changes: Data collection, Refinement description