Phytophthora sojae effector PsAvh240 inhibits a host aspartic protease secretion to promote infection

Experimental Data Snapshot

  • Resolution: 2.30 Å
  • R-Value Free: 0.252 
  • R-Value Work: 0.211 
  • R-Value Observed: 0.213 

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Phytophthora sojae Effector PsAvh240 Inhibits Host Aspartic Protease Secretion to Promote Infection.

Guo, B.Wang, H.Yang, B.Jiang, W.Jing, M.Li, H.Xia, Y.Xu, Y.Hu, Q.Wang, F.Yu, F.Wang, Y.Ye, W.Dong, S.Xing, W.Wang, Y.

(2019) Mol Plant 12: 552-564

  • DOI: https://doi.org/10.1016/j.molp.2019.01.017
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    Plants secrete defense molecules into the extracellular space (the apoplast) to combat attacking microbes. However, the mechanisms by which successful pathogens subvert plant apoplastic immunity remain poorly understood. In this study, we show that PsAvh240, a membrane-localized effector of the soybean pathogen Phytophthora sojae, promotes P. sojae infection in soybean hairy roots. We found that PsAvh240 interacts with the soybean-resistant aspartic protease GmAP1 in planta and suppresses the secretion of GmAP1 into the apoplast. By solving its crystal structure we revealed that PsAvh240 contain six α helices and two WY motifs. The first two α helices of PsAvh240 are responsible for its plasma membrane-localization and are required for PsAvh240's interaction with GmAP1. The second WY motifs of two PsAvh240 molecules form a handshake arrangement resulting in a handshake-like dimer. This dimerization is required for the effector's repression of GmAP1 secretion. Taken together, these data reveal that PsAvh240 localizes at the plasma membrane to interfere with GmAP1 secretion, which represents an effective mechanism by which effector proteins suppress plant apoplastic immunity.

  • Organizational Affiliation

    Department of Plant Pathology, Nanjing Agricultural University, Nanjing 210095, China; Key Laboratory of Integrated Management of Crop Diseases and Pests (Ministry of Education), Nanjing 210095, China.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
A, B
137Phytophthora sojaeMutation(s): 0 
Gene Names: Avh
Find proteins for E0W4T1 (Phytophthora sojae)
Explore E0W4T1 
Go to UniProtKB:  E0W4T1
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupE0W4T1
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 2.30 Å
  • R-Value Free: 0.252 
  • R-Value Work: 0.211 
  • R-Value Observed: 0.213 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 35.35α = 90
b = 65.679β = 90
c = 143.199γ = 90
Software Package:
Software NamePurpose
HKL-2000data reduction
HKL-2000data scaling
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report

Entry History 

Deposition Data

  • Released Date: 2019-02-06 
  • Deposition Author(s): Guo, B.

Revision History  (Full details and data files)

  • Version 1.0: 2019-02-06
    Type: Initial release
  • Version 1.1: 2019-02-13
    Changes: Data collection, Database references
  • Version 1.2: 2019-04-03
    Changes: Data collection, Database references
  • Version 1.3: 2019-04-10
    Changes: Data collection, Database references
  • Version 1.4: 2024-03-27
    Changes: Data collection, Database references