4C6T

Crystal structure of the RPS4 and RRS1 TIR domain heterodimer


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.65 Å
  • R-Value Free: 0.227 
  • R-Value Work: 0.182 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structural Basis for Assembly and Function of a Heterodimeric Plant Immune Receptor.

Williams, S.J.Sohn, K.H.Wan, L.Bernoux, M.Sarris, P.F.Segonzac, C.Ve, T.Ma, Y.Saucet, S.B.Ericsson, D.J.Casey, L.W.Lonhienne, T.Winzor, D.J.Zhang, X.Coerdt, A.Parker, J.E.Dodds, P.N.Kobe, B.Jones, J.D.G.

(2014) Science 344: 299

  • DOI: 10.1126/science.1247357
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Cytoplasmic plant immune receptors recognize specific pathogen effector proteins and initiate effector-triggered immunity. In Arabidopsis, the immune receptors RPS4 and RRS1 are both required to activate defense to three different pathogens. We show ...

    Cytoplasmic plant immune receptors recognize specific pathogen effector proteins and initiate effector-triggered immunity. In Arabidopsis, the immune receptors RPS4 and RRS1 are both required to activate defense to three different pathogens. We show that RPS4 and RRS1 physically associate. Crystal structures of the N-terminal Toll-interleukin-1 receptor/resistance (TIR) domains of RPS4 and RRS1, individually and as a heterodimeric complex (respectively at 2.05, 1.75, and 2.65 angstrom resolution), reveal a conserved TIR/TIR interaction interface. We show that TIR domain heterodimerization is required to form a functional RRS1/RPS4 effector recognition complex. The RPS4 TIR domain activates effector-independent defense, which is inhibited by the RRS1 TIR domain through the heterodimerization interface. Thus, RPS4 and RRS1 function as a receptor complex in which the two components play distinct roles in recognition and signaling.


    Organizational Affiliation

    School of Chemistry and Molecular Biosciences and Australian Infectious Diseases Research Centre, University of Queensland, Brisbane, QLD 4072, Australia.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PROBABLE WRKY TRANSCRIPTION FACTOR 52
A, C
151Arabidopsis thalianaMutation(s): 0 
Gene Names: RRS1 (RCH2, RRS1-S, RSH4, SLH1, WRKY52)
Find proteins for P0DKH5 (Arabidopsis thaliana)
Go to Gene View: RRS1
Go to UniProtKB:  P0DKH5
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
DISEASE RESISTANCE PROTEIN RPS4
B, D
173Arabidopsis thalianaMutation(s): 0 
Gene Names: RPS4
Find proteins for Q9XGM3 (Arabidopsis thaliana)
Go to UniProtKB:  Q9XGM3
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MLA
Query on MLA

Download SDF File 
Download CCD File 
B, D
MALONIC ACID
DICARBOXYLIC ACID C3; PROPANEDIOLIC ACID; METHANEDICARBOXYLIC ACID
C3 H4 O4
OFOBLEOULBTSOW-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.65 Å
  • R-Value Free: 0.227 
  • R-Value Work: 0.182 
  • Space Group: P 61 2 2
Unit Cell:
Length (Å)Angle (°)
a = 93.359α = 90.00
b = 93.359β = 90.00
c = 416.648γ = 120.00
Software Package:
Software NamePurpose
XDSdata reduction
Aimlessdata scaling
PHENIXrefinement
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-05-28
    Type: Initial release
  • Version 1.1: 2015-04-22
    Type: Non-polymer description