1ZNB

METALLO-BETA-LACTAMASE

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.85 Å
  • R-Value Free: 0.241 
  • R-Value Work: 0.167 
  • R-Value Observed: 0.167 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history. 


Literature

Crystal structure of the wide-spectrum binuclear zinc beta-lactamase from Bacteroides fragilis.

Concha, N.O., Rasmussen, B.A., Bush, K., Herzberg, O.

(1996) Structure 4: 823-836

  • DOI: https://doi.org/10.1016/s0969-2126(96)00089-5
  • Primary Citation of Related Structures:  
    1ZNB

  • PubMed Abstract: 

    • The metallo-beta-lactamase from Bacteroides fragilis hydrolyzes a wide range of beta-lactam antibiotics, and is not clinically susceptible to any known beta-lactamase inhibitors. B. fragilis is associated with post-surgery hospital infections, and there has been a recent report of plasmid-mediated dissemination of the enzyme ...

    The metallo-beta-lactamase from Bacteroides fragilis hydrolyzes a wide range of beta-lactam antibiotics, and is not clinically susceptible to any known beta-lactamase inhibitors. B. fragilis is associated with post-surgery hospital infections, and there has been a recent report of plasmid-mediated dissemination of the enzyme. Effective inhibitors are therefore urgently needed. Knowledge of the three-dimensional structure will aid in the drug design effort.

    Related Citations: 
    • Biochemical Characterization of the Metallo-Beta-Lactamase Ccra from Bacteroides Fragilis
      Yang, Y., Rasmussen, B.A., Bush, K.
      (1992) Antimicrob Agents Chemother 36: 1155
    Organizational Affiliation: 

    Center for Advanced Research in Biotechnology, University of Maryland Biotechnology Institute, Rockville 20850, USA.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
METALLO-BETA-LACTAMASEA, B232Bacteroides fragilisMutation(s): 0 
Gene Names: CCRA3, ccrA, cfiA
EC: 3.5.2.6
UniProt
Find proteins for P25910 (Bacteroides fragilis)
Explore P25910 
Go to UniProtKB:  P25910
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP25910
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.85 Å
  • R-Value Free: 0.241 
  • R-Value Work: 0.167 
  • R-Value Observed: 0.167 
  • Space Group: P 43 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 78.298α = 90
b = 78.298β = 90
c = 140.916γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
XENGENdata reduction
X-PLORphasing

Structure Validation

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View more in-depth experimental data
Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1997-01-11
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2011-11-16
    Changes: Atomic model