4WBG

Crystal structure of class C beta-lactamase Mox-1 covalently complexed with aztorenam


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.214 
  • R-Value Work: 0.175 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Conformational Change Observed in the Active Site of Class C beta-Lactamase MOX-1 upon Binding to Aztreonam

Oguri, T.Ishii, Y.Shimizu-Ibuka, A.

(2015) Antimicrob.Agents Chemother. 59: 5069-5072

  • DOI: 10.1128/AAC.04428-14

  • PubMed Abstract: 
  • We solved the crystal structure of the class C β-lactamase MOX-1 complexed with the inhibitor aztreonam at 1.9Å resolution. The main-chain oxygen of Ser315 interacts with the amide nitrogen of aztreonam. Surprisingly, compared to that in the structur ...

    We solved the crystal structure of the class C β-lactamase MOX-1 complexed with the inhibitor aztreonam at 1.9Å resolution. The main-chain oxygen of Ser315 interacts with the amide nitrogen of aztreonam. Surprisingly, compared to that in the structure of free MOX-1, this main-chain carboxyl changes its position significantly upon binding to aztreonam. This result indicates that the interaction between MOX-1 and β-lactams can be accompanied by conformational changes in the B3 β-strand main chain.


    Organizational Affiliation

    Department of Microbiology and Infectious Diseases, Toho University School of Medicine, Tokyo, Japan.,Department of Science, Yamagata University, Yamagata, Japan.,Department of Science, Yamagata University, Yamagata, Japan Faculty of Applied Life Sciences, Niigata University of Pharmacy and Applied Life Sciences, Niigata, Japan ibuka@nupals.ac.jp.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Beta-lactamase
A
380Klebsiella pneumoniaeMutation(s): 0 
Gene Names: blaMOX-1
EC: 3.5.2.6
Find proteins for Q51578 (Klebsiella pneumoniae)
Go to UniProtKB:  Q51578
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

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Download CCD File 
A
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
ACT
Query on ACT

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Download CCD File 
A
ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M
 Ligand Interaction
AZR
Query on AZR

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Download CCD File 
A
2-({[(1Z)-1-(2-amino-1,3-thiazol-4-yl)-2-oxo-2-{[(2S,3S)-1-oxo-3-(sulfoamino)butan-2-yl]amino}ethylidene]amino}oxy)-2-methylpropanoic acid
AZTREONAM, open form
C13 H19 N5 O8 S2
OEVQTUTXOVDNJO-GEEOIBTQSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.214 
  • R-Value Work: 0.175 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 49.540α = 90.00
b = 59.250β = 102.72
c = 62.480γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-07-01
    Type: Initial release
  • Version 1.1: 2015-08-05
    Type: Database references