5N7O

EthR2 in complex with SMARt-420 compound


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.215 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structural analysis of the interaction between spiroisoxazoline SMARt-420 and the Mycobacterium tuberculosis repressor EthR2.

Wohlkonig, A.Remaut, H.Moune, M.Tanina, A.Meyer, F.Desroses, M.Steyaert, J.Willand, N.Baulard, A.R.Wintjens, R.

(2017) Biochem. Biophys. Res. Commun. 487: 403-408

  • DOI: 10.1016/j.bbrc.2017.04.074
  • Also Cited By: 5N1I, 5N1C, 5ICJ

  • PubMed Abstract: 
  • Inhibition of transcriptional regulators of bacterial pathogens with the aim of reprogramming their metabolism to modify their antibiotic susceptibility constitutes a promising therapeutic strategy. One example is the bio-activation of the anti-tuber ...

    Inhibition of transcriptional regulators of bacterial pathogens with the aim of reprogramming their metabolism to modify their antibiotic susceptibility constitutes a promising therapeutic strategy. One example is the bio-activation of the anti-tubercular pro-drug ethionamide, which activity could be enhanced by inhibiting the transcriptional repressor EthR. Recently, we discovered that inhibition of a second transcriptional repressor, EthR2, leads to the awakening of a new ethionamide bio-activation pathway. The x-ray structure of EthR2 was solved at 2.3 Å resolution in complex with a compound called SMARt-420 (Small Molecule Aborting Resistance). Detailed comparison and structural analysis revealed interesting insights for the upcoming structure-based design of EthR2 inhibitors as an alternative to revert ethionamide resistance in Mycobacterium tuberculosis.


    Related Citations: 
    • Reversion of antibiotic resistance in Mycobacterium tuberculosis by spiroisoxazoline SMARt-420
      Blondiaux, N.,Moune, M.,Desroses, M.,Frita, R.,Flipo, M.,Mathys, V.,Soetaert, K.,Kiass, M.,Delorme, V.,Djaout, K.,Trebosc, V.,Kemmer, C.,Wintjens, R.,Wohlkonig, A.,Antoine, R.,Huot, L.,Hot, D.,Coscolla, M.,Feldmann, J.,Gagneux, S.,Locht, C.,Brodin, P.,Gitzinger, M.,Deprez, B.,Willand, N.,Baulard, A.R.
      (2017) Science 355: 1206


    Organizational Affiliation

    Center for Structural Biology, Vlaams Instituut voor Biotechnology (VIB), Pleinlaan 2, B-1050 Brussels, Belgium; Structural Biology Brussels, Vrije Universiteit Brussel (VUB), Pleinlaan 2, B-1050 Brussels, Belgium.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Probable transcriptional regulatory protein
A, B
221Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)Mutation(s): 0 
Find proteins for O53623 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv))
Go to UniProtKB:  O53623
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
69Y
Query on 69Y

Download SDF File 
Download CCD File 
A, B
4,4,4-trifluoro-1-(3-phenyl-1-oxa-2,8-diazaspiro[4.5]dec-2-en-8-yl)butan-1-one
C17 H19 F3 N2 O2
IBVDSAFESRHIBV-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.215 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 59.400α = 90.00
b = 74.290β = 90.00
c = 91.500γ = 90.00
Software Package:
Software NamePurpose
XDSdata scaling
XDSdata reduction
REFMACrefinement
MOLREPphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2017-04-26
    Type: Initial release
  • Version 1.1: 2017-05-10
    Type: Database references