5EVF

Crystal structure of a Francisella virulence factor FvfA in the hexagonal form


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.762 Å
  • R-Value Free: 0.197 
  • R-Value Work: 0.167 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Structure of the conserved Francisella virulence protein FvfA.

Kolappan, S.Lo, K.Y.Shen, C.L.J.Guttman, J.A.Craig, L.

(2017) Acta Crystallogr D Struct Biol 73: 814-821

  • DOI: 10.1107/S205979831701333X
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Francisella tularensis is a potent human pathogen that invades and survives in macrophage and epithelial cells. Two identical proteins, FTT_0924 from F. tularensis subsp. tularensis and FTL_1286 from F. tularensis subsp. holarctica LVS, have previous ...

    Francisella tularensis is a potent human pathogen that invades and survives in macrophage and epithelial cells. Two identical proteins, FTT_0924 from F. tularensis subsp. tularensis and FTL_1286 from F. tularensis subsp. holarctica LVS, have previously been identified as playing a role in protection of the bacteria from osmotic shock and its survival in macrophages. FTT_0924 has been shown to localize to the inner membrane, with its C-terminus exposed to the periplasm. Here, crystal structures of the F. novicida homologue FTN_0802, which we call FvfA, in two crystal forms are reported at 1.8 Å resolution. FvfA differs from FTT_0924 and FTL_1286 by a single amino acid. FvfA has a DUF1471 fold that closely resembles the Escherichia coli outer membrane lipoprotein RscF, a component of a phosphorelay pathway involved in protecting bacteria from outer membrane perturbation. The structural and functional similarities and differences between these proteins and their implications for F. tularensis pathogenesis are discussed.


    Related Citations: 
    • Identifying Francisella tularensis genes required for growth in host cells.
      Brunton, J.,Steele, S.,Miller, C.,Lovullo, E.,Taft-Benz, S.,Kawula, T.
      (2015) Infect. Immun. 83: 3015


    Organizational Affiliation

    Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, BC V5A 1S6, Canada.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Francisella virulence factor
A
105Francisella tularensis subsp. novicida (strain U112)Mutation(s): 0 
Find proteins for A0Q625 (Francisella tularensis subsp. novicida (strain U112))
Go to UniProtKB:  A0Q625
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CL
Query on CL

Download SDF File 
Download CCD File 
A
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
GOL
Query on GOL

Download SDF File 
Download CCD File 
A
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.762 Å
  • R-Value Free: 0.197 
  • R-Value Work: 0.167 
  • Space Group: P 61
Unit Cell:
Length (Å)Angle (°)
a = 60.430α = 90.00
b = 60.430β = 90.00
c = 58.571γ = 120.00
Software Package:
Software NamePurpose
SOLVEphasing
MOSFLMdata reduction
PHENIXrefinement
Aimlessdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Natural Sciences and Engineering Research Council (Canada)Canada--
Canadian Institutes of Health ResearchCanada--
Simon Fraser University FundsCanada--

Revision History 

  • Version 1.0: 2016-10-26
    Type: Initial release
  • Version 1.1: 2017-09-06
    Type: Author supporting evidence, Derived calculations
  • Version 1.2: 2017-10-18
    Type: Database references
  • Version 1.3: 2017-12-20
    Type: Database references