7EI4

Crystal structure of MasL in complex with a novel covalent inhibitor, collimonin C


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.66 Å
  • R-Value Free: 0.162 
  • R-Value Work: 0.114 
  • R-Value Observed: 0.117 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

Integrated omics approach to unveil antifungal bacterial polyynes as acetyl-CoA acetyltransferase inhibitors.

Lin, C.C.Hoo, S.Y.Ma, L.T.Lin, C.Huang, K.F.Ho, Y.N.Sun, C.H.Lee, H.J.Chen, P.Y.Shu, L.J.Wang, B.W.Hsu, W.C.Ko, T.P.Yang, Y.L.

(2022) Commun Biol 5: 454-454

  • DOI: https://doi.org/10.1038/s42003-022-03409-6
  • Primary Citation of Related Structures:  
    7EI3, 7EI4, 7FEA

  • PubMed Abstract: 

    Bacterial polyynes are highly active natural products with a broad spectrum of antimicrobial activities. However, their detailed mechanism of action remains unclear. By integrating comparative genomics, transcriptomics, functional genetics, and metabolomics analysis, we identified a unique polyyne resistance gene, masL (encoding acetyl-CoA acetyltransferase), in the biosynthesis gene cluster of antifungal polyynes (massilin A 1, massilin B 2, collimonin C 3, and collimonin D 4) of Massilia sp. YMA4. Crystallographic analysis indicated that bacterial polyynes serve as covalent inhibitors of acetyl-CoA acetyltransferase. Moreover, we confirmed that the bacterial polyynes disrupted cell membrane integrity and inhibited the cell viability of Candida albicans by targeting ERG10, the homolog of MasL. Thus, this study demonstrated that acetyl-CoA acetyltransferase is a potential target for developing antifungal agents.


  • Organizational Affiliation

    Agricultural Biotechnology Research Center, Academia Sinica, Nankang Dist., Taipei, 115, Taiwan.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Acetyl-CoA C-acyltransferase
A, B, C, D
407[Empedobacter] haloabiumMutation(s): 1 
Gene Names: E7V67_18950
EC: 2.3.1.16
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.66 Å
  • R-Value Free: 0.162 
  • R-Value Work: 0.114 
  • R-Value Observed: 0.117 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 59.139α = 90
b = 115.077β = 91.08
c = 125.789γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling
MOLREPphasing
PDB_EXTRACTdata extraction

Structure Validation

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Ligand Structure Quality Assessment 


Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Academia Sinica (Taiwan)TaiwanMOST 104-2320-B-001-019-MY2

Revision History  (Full details and data files)

  • Version 1.0: 2022-04-06
    Type: Initial release
  • Version 1.1: 2022-10-19
    Changes: Database references
  • Version 1.2: 2023-11-29
    Changes: Data collection, Refinement description