2WRS

Crystal Structure of the Mono-Zinc Metallo-beta-lactamase VIM-4 from Pseudomonas aeruginosa


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.79 Å
  • R-Value Free: 0.253 
  • R-Value Work: 0.199 
  • R-Value Observed: 0.201 

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


Literature

Mercaptophosphonate Compounds as Broad-Spectrum Inhibitors of the Metallo-Beta-Lactamases.

Lassaux, P.Hamel, M.Gulea, M.Delbruck, H.Mercuri, P.S.Horsfall, L.Dehareng, D.Kupper, M.Frere, J.-M.Hoffmann, K.Galleni, M.Bebrone, C.

(2010) J Med Chem 53: 4862

  • DOI: https://doi.org/10.1021/jm100213c
  • Primary Citation of Related Structures:  
    2WRS, 3IOF, 3IOG

  • PubMed Abstract: 

    Although commercialized inhibitors of active site serine beta-lactamases are currently used in coadministration with antibiotic therapy, no clinically useful inhibitors of metallo-beta-lactamases (MBLs) have yet been discovered. In this paper, we investigated the inhibitory effect of mercaptophosphonate derivatives against the three subclasses of MBLs (B1, B2, and B3). All 14 tested mercaptophosphonates, with the exception of 1a, behaved as competitive inhibitors for the three subclasses. Apart from 13 and 21, all the mercaptophosphonates tested exhibit a good inhibitory effect on the subclass B2 MBL CphA with low inhibition constants (K(i) < 15 muM). Interestingly, compound 18 turned out to be a potent broad spectrum MBL inhibitor. The crystallographic structures of the CphA-10a and CphA-18 complexes indicated that the sulfur atom of 10a and the phosphonato group of 18 interact with the Zn(2+) ion, respectively. Molecular modeling studies of the interactions between compounds 10a and 18 and the VIM-4 (B1), CphA (B2), and FEZ-1 (B3) enzymes brought to light different binding modes depending on the enzyme and the inhibitor, consistent with the crystallographic structures.


  • Organizational Affiliation

    Laboratory of Biological Macromolecules, University of Liège, Allée du 6 Août B6, Sart-Tilman, 4000 Liège, Belgium.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
BETA-LACTAMASE VIM-4
A, B
230Pseudomonas aeruginosaMutation(s): 0 
EC: 3.5.2.6
UniProt
Find proteins for Q70E11 (Pseudomonas aeruginosa)
Explore Q70E11 
Go to UniProtKB:  Q70E11
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ70E11
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.79 Å
  • R-Value Free: 0.253 
  • R-Value Work: 0.199 
  • R-Value Observed: 0.201 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 140.13α = 90
b = 45.67β = 105.41
c = 105.03γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
XSCALEdata scaling
PHASERphasing

Structure Validation

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Entry History 

Revision History  (Full details and data files)

  • Version 1.0: 2010-06-23
    Type: Initial release
  • Version 1.1: 2013-01-30
    Changes: Database references, Structure summary, Version format compliance
  • Version 1.2: 2023-12-20
    Changes: Data collection, Database references, Derived calculations, Other, Refinement description