5ZNG

The crystal complex of immune receptor RGA5A_S of Pia from rice (Oryzae sativa) with rice blast (Magnaporthe oryzae) effector protein AVR1-CO39


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.189 Å
  • R-Value Free: 0.197 
  • R-Value Work: 0.162 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Specific recognition of two MAX effectors by integrated HMA domains in plant immune receptors involves distinct binding surfaces

Guo, L.Cesari, S.de Guillen, K.Chalvon, V.Mammri, L.Ma, M.Meusnier, I.Bonnot, F.Padilla, A.Peng, Y.L.Liu, J.Kroj, T.

(2018) Proc. Natl. Acad. Sci. U.S.A. 115: 11637-11642

  • DOI: 10.1073/pnas.1810705115
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The structurally conserved but sequence-unrelated MAX ( <i>Magnaporthe oryzae </i> avirulence and ToxB-like) effectors AVR1-CO39 and AVR-PikD from the blast fungus <i>M. oryzae </i> are recognized by the rice nucleotide-binding domain and leucine-ri ...

    The structurally conserved but sequence-unrelated MAX ( Magnaporthe oryzae avirulence and ToxB-like) effectors AVR1-CO39 and AVR-PikD from the blast fungus M. oryzae are recognized by the rice nucleotide-binding domain and leucine-rich repeat proteins (NLRs) RGA5 and Pikp-1, respectively. This involves, in both cases, direct interaction of the effector with a heavy metal-associated (HMA) integrated domain (ID) in the NLR. Here, we solved the crystal structures of a C-terminal fragment of RGA5 carrying the HMA ID (RGA5_S), alone, and in complex with AVR1-CO39 and compared it to the structure of the Pikp1 HMA /AVR-PikD complex. In both complexes, HMA ID/MAX effector interactions involve antiparallel alignment of β-sheets from each partner. However, effector-binding occurs at different surfaces in Pikp1 HMA and RGA5 HMA , indicating that these interactions evolved independently by convergence of these two MAX effectors to the same type of plant target proteins. Interestingly, the effector-binding surface in RGA5 HMA overlaps with the surface that mediates RGA5 HMA self-interaction. Mutations in the HMA-binding interface of AVR1-CO39 perturb RGA5 HMA -binding, in vitro and in vivo, and affect the recognition of M. oryzae in a rice cultivar containing Pi-CO39 Our study provides detailed insight into the mechanisms of effector recognition by NLRs, which has substantial implications for future engineering of NLRs to expand their recognition specificities. In addition, we propose, as a hypothesis for the understanding of effector diversity, that in the structurally conserved MAX effectors the molecular mechanism of host target protein-binding is conserved rather than the host target proteins themselves.


    Organizational Affiliation

    State Key Laboratory of Agrobiotechnology, China Agricultural University, 100083 Beijing, People's Republic of China.,CBS, Université de Montpellier, CNRS, INSERM, 34090 Montpellier, France.,CIRAD, UMR BGPI, F-34398 Montpellier, France.,State Key Laboratory of Agrobiotechnology, China Agricultural University, 100083 Beijing, People's Republic of China; jliu@cau.edu.cn thomas.kroj@inra.fr.,Ministry of Agriculture and Rural Affairs, Key Laboratory of Pest Monitoring and Green Management, China Agricultural University, 100083 Beijing, People's Republic of China.,BGPI, Université de Montpellier, CIRAD, INRA, Montpellier SupAgro, F-34398 Montpellier, France.,BGPI, Université de Montpellier, CIRAD, INRA, Montpellier SupAgro, F-34398 Montpellier, France; jliu@cau.edu.cn thomas.kroj@inra.fr.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
NBS-LRR type protein
A
137Oryza sativa subsp. japonicaMutation(s): 0 
Gene Names: RGA5
Find proteins for F7J0N2 (Oryza sativa subsp. japonica)
Go to UniProtKB:  F7J0N2
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
AVR1-CO39
C
77Magnaporthe griseaMutation(s): 0 
Find proteins for Q8J180 (Magnaporthe grisea)
Go to UniProtKB:  Q8J180
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.189 Å
  • R-Value Free: 0.197 
  • R-Value Work: 0.162 
  • Space Group: P 31 2 1
Unit Cell:
Length (Å)Angle (°)
a = 66.721α = 90.00
b = 66.721β = 90.00
c = 108.328γ = 120.00
Software Package:
Software NamePurpose
HKL-2000data reduction
PHASERphasing
PHENIXrefinement
HKL-2000data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Natural Science Foundation of ChinaChina315711057

Revision History 

  • Version 1.0: 2018-10-24
    Type: Initial release
  • Version 1.1: 2018-11-28
    Type: Data collection, Database references