1E2X

FadR, fatty acid responsive transcription factor from E. coli


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.237 
  • R-Value Work: 0.200 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal Structure of Fadr, a Fatty Acid-Responsive Transcription Factor with a Novel Acyl Coenzyme A-Binding Fold

Van Aalten, D.M.F.Dirusso, C.C.Knudsen, J.Wierenga, R.K.

(2000) Embo J. 19: 5167

  • DOI: 10.1093/emboj/19.19.5167
  • Also Cited By: 1H9G, 1H9T

  • PubMed Abstract: 
  • FadR is a dimeric acyl coenzyme A (acyl CoA)-binding protein and transcription factor that regulates the expression of genes encoding fatty acid biosynthetic and degrading enzymes in Escherichia coli. Here, the 2.0 A crystal structure of full-length ...

    FadR is a dimeric acyl coenzyme A (acyl CoA)-binding protein and transcription factor that regulates the expression of genes encoding fatty acid biosynthetic and degrading enzymes in Escherichia coli. Here, the 2.0 A crystal structure of full-length FadR is described, determined using multi-wavelength anomalous dispersion. The structure reveals a dimer and a two-domain fold, with DNA-binding and acyl-CoA-binding sites located in an N-terminal and C-terminal domain, respectively. The N-terminal domain contains a winged helix-turn-helix prokaryotic DNA-binding fold. Comparison with known structures and analysis of mutagenesis data delineated the site of interaction with DNA. The C-terminal domain has a novel fold, consisting of a seven-helical bundle with a crossover topology. Careful analysis of the structure, together with mutational and biophysical data, revealed a putative hydrophobic acyl-CoA-binding site, buried in the core of the seven-helical bundle. This structure aids in understanding FadR function at a molecular level, provides the first structural scaffold for the large GntR family of transcription factors, which are keys in the control of metabolism in bacterial pathogens, and could thus be a possible target for novel chemotherapeutic agents.


    Related Citations: 
    • Crystallization and X-Ray Diffraction Studies of the Fatty-Acid Responsive Transcription Factor Fadr from Escherichia Coli.
      Van Aalten, D.M.F.,Knudsen, J.,Dirusso, C.C.,Kokko, T.,Wierenga, R.K.
      (2000) Acta Crystallogr.,Sect.D 56: 469


    Organizational Affiliation

    Wellcome Trust Biocentre, Department of Biochemistry, University of Dundee, Dow Street, Dundee DD1 5EH, UK. dava@davapc1.bioch.dundee.ac.uk




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
FATTY ACID METABOLISM REGULATOR PROTEIN
A
243Escherichia coli (strain K12)Gene Names: fadR (oleR, thdB)
Find proteins for P0A8V6 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A8V6
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.237 
  • R-Value Work: 0.200 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 59.711α = 90.00
b = 101.973β = 90.00
c = 87.513γ = 90.00
Software Package:
Software NamePurpose
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling
CNSphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-12-03
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance