2XKJ

CRYSTAL STRUCTURE OF CATALYTIC CORE OF A. BAUMANNII TOPO IV (PARE- PARC FUSION TRUNCATE)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.213 
  • R-Value Work: 0.161 
  • R-Value Observed: 0.163 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

Structural Basis of Quinolone Inhibition of Type Iia Topoisomerases and Target-Mediated Resistance

Wohlkonig, A.Chan, P.F.Fosberry, A.P.Homes, P.Huang, J.Kranz, M.Leydon, V.R.Miles, T.J.Pearson, N.D.Perera, R.L.Shillings, A.J.Gwynn, M.N.Bax, B.D.

(2010) Nat Struct Mol Biol 17: 1152

  • DOI: 10.1038/nsmb.1892
  • Primary Citation of Related Structures:  
    2XKJ, 2XKK

  • PubMed Abstract: 
  • Quinolone antibacterials have been used to treat bacterial infections for over 40 years. A crystal structure of moxifloxacin in complex with Acinetobacter baumannii topoisomerase IV now shows the wedge-shaped quinolone stacking between base pairs at the DNA cleavage site and binding conserved residues in the DNA cleavage domain through chelation of a noncatalytic magnesium ion ...

    Quinolone antibacterials have been used to treat bacterial infections for over 40 years. A crystal structure of moxifloxacin in complex with Acinetobacter baumannii topoisomerase IV now shows the wedge-shaped quinolone stacking between base pairs at the DNA cleavage site and binding conserved residues in the DNA cleavage domain through chelation of a noncatalytic magnesium ion. This provides a molecular basis for the quinolone inhibition mechanism, resistance mutations and invariant quinolone antibacterial structural features.


    Organizational Affiliation

    Platform Technology and Science, GlaxoSmithKline, Medicines Research Centre, Stevenage, Hertfordshire, UK.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
TOPOISOMERASE IVA [auth E]767Acinetobacter baumanniiMutation(s): 0 
EC: 5.99.1 (PDB Primary Data), 5.6.2.2 (UniProt)
Find proteins for B0VP98 (Acinetobacter baumannii (strain SDF))
Explore B0VP98 
Go to UniProtKB:  B0VP98
Find proteins for B0V9T6 (Acinetobacter baumannii (strain AYE))
Explore B0V9T6 
Go to UniProtKB:  B0V9T6
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download Ideal Coordinates CCD File 
B [auth E], D [auth E]SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
GOL
Query on GOL

Download Ideal Coordinates CCD File 
C [auth E]GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.213 
  • R-Value Work: 0.161 
  • R-Value Observed: 0.163 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 163.389α = 90
b = 74.433β = 107.96
c = 80.211γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
HKLdata reduction
SCALEPACKdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2010-09-01
    Type: Initial release
  • Version 1.1: 2011-05-19
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2019-05-08
    Changes: Data collection, Experimental preparation, Other
  • Version 1.4: 2019-09-25
    Changes: Data collection, Other