5C5J

Poymerase Nucleotide complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.274 
  • R-Value Work: 0.222 
  • R-Value Observed: 0.225 

wwPDB Validation 3D Report Full Report



Literature

Reactive Oxygen Species Play an Important Role in the Bactericidal Activity of Quinolone Antibiotics

Kottur, J.Nair, D.T.

(2016) Angew Chem Int Ed Engl 55: 2397-2400

  • DOI: 10.1002/anie.201509340
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Recent studies posit that reactive oxygen species (ROS) contribute to the cell lethality of bactericidal antibiotics. However, this conjecture has been challenged and remains controversial. To resolve this controversy, we adopted a strategy that invo ...

    Recent studies posit that reactive oxygen species (ROS) contribute to the cell lethality of bactericidal antibiotics. However, this conjecture has been challenged and remains controversial. To resolve this controversy, we adopted a strategy that involves DNA polymerase IV (PolIV). The nucleotide pool of the cell gets oxidized by ROS and PolIV incorporates the damaged nucleotides (especially 8oxodGTP) into the genome, which results in death of the bacteria. By using a combination of structural and biochemical tools coupled with growth assays, it was shown that selective perturbation of the 8oxodGTP incorporation activity of PolIV results in considerable enhancement of the survival of bacteria in the presence of the norfloxacin antibiotic. Our studies therefore indicate that ROS induced in bacteria by the presence of antibiotics in the environment contribute significantly to cell lethality.


    Organizational Affiliation

    National Centre for Biological Sciences, NCBS-TIFR, GKVK Campus, Bangalore, 560065, India. deepak@rcb.res.in.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
DNA polymerase IVA, F352Escherichia coliMutation(s): 0 
Gene Names: dinB
EC: 2.7.7.7
Find proteins for Q47155 (Escherichia coli (strain K12))
Explore Q47155 
Go to UniProtKB:  Q47155
Protein Feature View
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  • Reference Sequence
  • Find similar nucleic acids by: Sequence   |   Structure
Entity ID: 2
MoleculeChainsLengthOrganism
DNA (5'-D(*TP*CP*TP*AP*GP*GP*GP*TP*CP*CP*TP*AP*GP*GP*AP*CP*CP*C)-3')B, C, G, H18Escherichia coli
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
8GT
Query on 8GT

Download CCD File 
A
8-OXO-GUANOSINE-5'-TRIPHOSPHATE
C10 H16 N5 O15 P3
JCHLKIQZUXYLPW-UMMCILCDSA-N
 Ligand Interaction
MG
Query on MG

Download CCD File 
A
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.274 
  • R-Value Work: 0.222 
  • R-Value Observed: 0.225 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 86.45α = 90
b = 57.38β = 94.51
c = 110.64γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
SCALAdata reduction
SCALAdata scaling
PHASERphasing

Structure Validation

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Entry History 

Deposition Data

  • Deposited Date: 2015-06-20 
  • Released Date: 2016-06-22 
  • Deposition Author(s): Nair, D.T., Kottur, J.

Revision History 

  • Version 1.0: 2016-06-22
    Type: Initial release