FEZ-1 metallo-beta-lactamase from Legionella gormanii modelled with unknown ligand

Experimental Data Snapshot

  • Resolution: 1.78 Å
  • R-Value Free: 0.155 
  • R-Value Work: 0.112 
  • R-Value Observed: 0.116 

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This is version 1.3 of the entry. See complete history


Three-dimensional structure of FEZ-1, a monomeric subclass B3 metallo-beta-lactamase from Fluoribacter gormanii, in native form and in complex with D-captopril.

Garcia-Saez, I.Mercuri, P.S.Papamicael, C.Kahn, R.Frere, J.M.Galleni, M.Rossolini, G.M.Dideberg, O.

(2003) J Mol Biol 325: 651-660

  • DOI: https://doi.org/10.1016/s0022-2836(02)01271-8
  • Primary Citation of Related Structures:  
    1JT1, 1K07, 1L9Y, 5W90, 5WCK

  • PubMed Abstract: 

    The beta-lactamases are involved in bacterial resistance to penicillin and related compounds. Members of the metallo-enzyme class are now found in many pathogenic bacteria and are thus becoming of major clinical importance. The structures of the Zn-beta-lactamase from Fluoribacter gormanii (FEZ-1) in the native and in the complex form are reported here. FEZ-1 is a monomeric enzyme, which possesses two zinc-binding sites. These structures are discussed in comparison with those of the tetrameric L1 enzyme produced by Stenotrophomonas maltophilia. From this analysis, amino acids involved in the oligomerization of L1 are clearly identified. Despite the similarity in fold, the active site of FEZ-1 was found to be significantly different. Two residues, which were previously implicated in function, are not present in L1 or in FEZ-1. The broad-spectrum substrate profile of Zn-beta-lactamases arises from the rather wide active-site cleft, where various beta-lactam compounds can be accommodated.

  • Organizational Affiliation

    Institut de Biologie Structurale (CIP), Jean-Pierre Ebel (CNRS-CEA), 41 rue Jules Horowitz, 38027 Grenoble Cedex 1, France.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
FEZ-1 protein263Fluoribacter gormaniiMutation(s): 2 
Gene Names: blaFEZ-1Lgor_2502
Find proteins for Q9K578 (Fluoribacter gormanii)
Explore Q9K578 
Go to UniProtKB:  Q9K578
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9K578
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 1.78 Å
  • R-Value Free: 0.155 
  • R-Value Work: 0.112 
  • R-Value Observed: 0.116 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 82.12α = 90
b = 76.775β = 110.21
c = 44.841γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALAdata scaling
PDB_EXTRACTdata extraction

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2018-06-20
    Type: Initial release
  • Version 1.1: 2018-12-26
    Changes: Data collection, Database references
  • Version 1.2: 2022-04-27
    Changes: Database references, Derived calculations
  • Version 1.3: 2023-10-04
    Changes: Data collection, Refinement description