1A8T

METALLO-BETA-LACTAMASE IN COMPLEX WITH L-159,061


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.55 Å
  • R-Value Free: 0.319 
  • R-Value Observed: 0.181 

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Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

Antibiotic sensitization using biphenyl tetrazoles as potent inhibitors of Bacteroides fragilis metallo-beta-lactamase.

Toney, J.H.Fitzgerald, P.M.Grover-Sharma, N.Olson, S.H.May, W.J.Sundelof, J.G.Vanderwall, D.E.Cleary, K.A.Grant, S.K.Wu, J.K.Kozarich, J.W.Pompliano, D.L.Hammond, G.G.

(1998) Chem Biol 5: 185-196

  • DOI: 10.1016/s1074-5521(98)90632-9
  • Primary Citation of Related Structures:  
    1A8T

  • PubMed Abstract: 
  • High level resistance to carbapenem antibiotics in gram negative bacteria such as Bacteroides fragilis is caused, in part, by expression of a wide-spectrum metallo-beta-lactamase that hydrolyzes the drug to an inactive form. Co-administration of metallo-beta-lactamase inhibitors to resistant bacteria is expected to restore the antibacterial activity of carbapenems ...

    High level resistance to carbapenem antibiotics in gram negative bacteria such as Bacteroides fragilis is caused, in part, by expression of a wide-spectrum metallo-beta-lactamase that hydrolyzes the drug to an inactive form. Co-administration of metallo-beta-lactamase inhibitors to resistant bacteria is expected to restore the antibacterial activity of carbapenems.


    Related Citations: 
    • Unanticipated Inhibition of the Metallo-Beta-Lactamase from Bacteroides Fragilis by 4-Morpholineethanesulfonic Acid (Mes): A Crystallographic Study at 1.85-A Resolution
      Fitzgerald, P.M., Wu, J.K., Toney, J.H.
      (1998) Biochemistry 37: 6791
    • High-Yield Expression, Purification, and Characterization of Active, Soluble Bacteroides Fragilis Metallo-Beta-Lactamase, Ccra
      Toney, J.H., Wu, J.K., Overbye, K.M., Thompson, C.M., Pompliano, D.L.
      (1997) Protein Expr Purif 9: 355

    Organizational Affiliation

    Department of Biochemistry, Merck Research Laboratories, P. O. Box 2000, Rahway, NJ 07065-0900, USA. jeff_toney@merck.com



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
METALLO-BETA-LACTAMASEA, B232Bacteroides fragilisMutation(s): 1 
Gene Names: ccrAcfiA
EC: 3.5.2.6
UniProt
Find proteins for P25910 (Bacteroides fragilis)
Explore P25910 
Go to UniProtKB:  P25910
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
061 (Subject of Investigation/LOI)
Query on 061

Download Ideal Coordinates CCD File 
E [auth A]2-BUTYL-6-HYDROXY-3-[2'-(1H-TETRAZOL-5-YL)-BIPHENYL-4-YLMETHYL]-3H-QUINAZOLIN-4-ONE
C26 H24 N6 O2
UNVNHFHIKCWHHG-UHFFFAOYSA-N
 Ligand Interaction
ZN
Query on ZN

Download Ideal Coordinates CCD File 
C [auth A], D [auth A], F [auth B], G [auth B]ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
Binding Affinity Annotations 
IDSourceBinding Affinity
61 PDBBind:  1A8T Ki: 1600 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.55 Å
  • R-Value Free: 0.319 
  • R-Value Observed: 0.181 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 71.36α = 90
b = 170.23β = 90
c = 40.66γ = 90
Software Package:
Software NamePurpose
MERLOTphasing
PROLSQrefinement
XENGENdata reduction
XENGENdata scaling

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment  



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1998-10-14
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance