5LEJ

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


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 Å
  • R-Value Free: 0.266 
  • R-Value Work: 0.230 

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
  • Primary Citation of Related Structures:  

  • 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 PrfAWT in complex only with DNA confirms that PrfAWT 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

    Department of Chemistry, Umeå University, 901 87 Umeå, Sweden.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Listeriolysin regulatory protein
A, B
237Listeria monocytogenes serovar 1/2a (strain ATCC BAA-679 / EGD-e)Mutation(s): 0 
Gene Names: prfA
Find proteins for P22262 (Listeria monocytogenes serovar 1/2a (strain ATCC BAA-679 / EGD-e))
Go to UniProtKB:  P22262
Entity ID: 2
MoleculeChainsLengthOrganism
DNA (30-MER)C30Listeria monocytogenes
Entity ID: 3
MoleculeChainsLengthOrganism
DNA (30-MER)D30Listeria monocytogenes
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 Å
  • R-Value Free: 0.266 
  • R-Value Work: 0.230 
  • Space Group: P 43 21 2
Unit Cell:
Length (Å)Angle (°)
a = 79.088α = 90.00
b = 79.088β = 90.00
c = 265.772γ = 90.00
Software Package:
Software NamePurpose
Aimlessdata scaling
PHASERphasing
PHENIXrefinement
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



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
    Type: Database references
  • Version 1.2: 2017-01-11
    Type: Database references
  • Version 1.3: 2017-09-13
    Type: Author supporting evidence, Derived calculations