4XA9

Crystal structure of the complex between the N-terminal domain of RavJ and LegL1 from Legionella pneumophila str. Philadelphia


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.195 
  • R-Value Work: 0.158 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Diverse mechanisms of metaeffector activity in an intracellular bacterial pathogen, Legionella pneumophila.

Urbanus, M.L.Quaile, A.T.Stogios, P.J.Morar, M.Rao, C.Di Leo, R.Evdokimova, E.Lam, M.Oatway, C.Cuff, M.E.Osipiuk, J.Michalska, K.Nocek, B.P.Taipale, M.Savchenko, A.Ensminger, A.W.

(2016) Mol. Syst. Biol. 12: 893-893

  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Pathogens deliver complex arsenals of translocated effector proteins to host cells during infection, but the extent to which these proteins are regulated once inside the eukaryotic cell remains poorly defined. Among all bacterial pathogens, Legionell ...

    Pathogens deliver complex arsenals of translocated effector proteins to host cells during infection, but the extent to which these proteins are regulated once inside the eukaryotic cell remains poorly defined. Among all bacterial pathogens, Legionella pneumophila maintains the largest known set of translocated substrates, delivering over 300 proteins to the host cell via its Type IVB, Icm/Dot translocation system. Backed by a few notable examples of effector-effector regulation in L. pneumophila, we sought to define the extent of this phenomenon through a systematic analysis of effector-effector functional interaction. We used Saccharomyces cerevisiae, an established proxy for the eukaryotic host, to query > 108,000 pairwise genetic interactions between two compatible expression libraries of ~330 L. pneumophila-translocated substrates. While capturing all known examples of effector-effector suppression, we identify fourteen novel translocated substrates that suppress the activity of other bacterial effectors and one pair with synergistic activities. In at least nine instances, this regulation is direct-a hallmark of an emerging class of proteins called metaeffectors, or "effectors of effectors". Through detailed structural and functional analysis, we show that metaeffector activity derives from a diverse range of mechanisms, shapes evolution, and can be used to reveal important aspects of each cognate effector's function. Metaeffectors, along with other, indirect, forms of effector-effector modulation, may be a common feature of many intracellular pathogens-with unrealized potential to inform our understanding of how pathogens regulate their interactions with the host cell.


    Organizational Affiliation

    Department of Biochemistry, University of Toronto, Toronto, ON, Canada.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Gala protein type 1, 3 or 4
A, B, C, D, E, F, G, H
297Legionella pneumophila subsp. pneumophila (strain Philadelphia 1 / ATCC 33152 / DSM 7513)Mutation(s): 0 
Gene Names: legL1
Find proteins for Q5ZWY8 (Legionella pneumophila subsp. pneumophila (strain Philadelphia 1 / ATCC 33152 / DSM 7513))
Go to UniProtKB:  Q5ZWY8
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Uncharacterized protein
a, b, c, d, e, f, g, h
231Legionella pneumophila subsp. pneumophila (strain Philadelphia 1 / ATCC 33152 / DSM 7513)Mutation(s): 0 
Find proteins for Q5ZWY9 (Legionella pneumophila subsp. pneumophila (strain Philadelphia 1 / ATCC 33152 / DSM 7513))
Go to UniProtKB:  Q5ZWY9
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
a, b, c, d, e, f, g, h
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.195 
  • R-Value Work: 0.158 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 219.608α = 90.00
b = 120.885β = 92.05
c = 149.288γ = 90.00
Software Package:
Software NamePurpose
ARPmodel building
HKL-3000data scaling
SHELXphasing
PHENIXrefinement
Cootmodel building
HKL-3000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of General Medical SciencesUnited StatesGM094585
Department of Energy (United States)United StatesAC02-06CH11357

Revision History 

  • Version 1.0: 2015-01-28
    Type: Initial release
  • Version 1.1: 2017-01-04
    Type: Database references
  • Version 1.2: 2017-09-20
    Type: Author supporting evidence