5LRS

The Transcriptional Regulator PrfA from Listeria Monocytogenes in complex with glutathione and a 30-bp operator PrfA-box motif


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 0.279 
  • R-Value Work: 0.248 
  • R-Value Observed: 0.249 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Structural basis for glutathione-mediated activation of the virulence regulatory protein PrfA in Listeria.

Hall, M.Grundstrom, C.Begum, A.Lindberg, M.J.Sauer, U.H.Almqvist, F.Johansson, J.Sauer-Eriksson, A.E.

(2016) Proc Natl Acad Sci U S A 113: 14733-14738

  • DOI: 10.1073/pnas.1614028114
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Infection by the human bacterial pathogen Listeria monocytogenes is mainly controlled by the positive regulatory factor A (PrfA), a member of the Crp/Fnr family of transcriptional activators. Published data suggest that PrfA requires the binding of a ...

    Infection by the human bacterial pathogen Listeria monocytogenes is mainly controlled by the positive regulatory factor A (PrfA), a member of the Crp/Fnr family of transcriptional activators. Published data suggest that PrfA requires the binding of a cofactor for full activity, and it was recently proposed that glutathione (GSH) could fulfill this function. Here we report the crystal structures of PrfA in complex with GSH and in complex with GSH and its cognate DNA, the hly operator PrfA box motif. These structures reveal the structural basis for a GSH-mediated allosteric mode of activation of PrfA in the cytosol of the host cell. The crystal structure of PrfA WT in complex only with DNA confirms that PrfA WT can adopt a DNA binding-compatible structure without binding the GSH activator molecule. By binding to PrfA in the cytosol of the host cell, GSH induces the correct fold of the HTH motifs, thus priming the PrfA protein for DNA interaction.


    Organizational Affiliation

    Umeå Centre for Microbial Research, Umeå University, 901 87 Umeå, Sweden.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Listeriolysin positive regulatory factor A
A, B
237Listeria monocytogenesMutation(s): 0 
Gene Names: 
Find proteins for Q4TVQ0 (Listeria monocytogenes)
Go to UniProtKB:  Q4TVQ0

Find similar nucleic acids by: Sequence  |  Structure

Entity ID: 2
MoleculeChainsLengthOrganism
DNA (30-MER)C30Listeria monocytogenes

Find similar nucleic acids by: Sequence  |  Structure

Entity ID: 3
MoleculeChainsLengthOrganism
DNA (30-MER)D30Listeria monocytogenes
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GSH
Query on GSH

Download CCD File 
A, B
GLUTATHIONE
C10 H17 N3 O6 S
RWSXRVCMGQZWBV-WDSKDSINSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 0.279 
  • R-Value Work: 0.248 
  • R-Value Observed: 0.249 
  • Space Group: P 43 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 78.961α = 90
b = 78.961β = 90
c = 265.224γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
Aimlessdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Swedish Research CouncilSweden--
Knut and Alice Wallenberg FoundationSweden--

Revision History 

  • Version 1.0: 2016-12-07
    Type: Initial release
  • Version 1.1: 2016-12-21
    Changes: Database references
  • Version 1.2: 2017-01-11
    Changes: Database references
  • Version 1.3: 2017-09-13
    Changes: Author supporting evidence, Derived calculations