8XGL | pdb_00008xgl

Structure of the Magnaporthe oryzae effector NIS1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 
    0.194 (Depositor), 0.196 (DCC) 
  • R-Value Work: 
    0.177 (Depositor), 0.177 (DCC) 
  • R-Value Observed: 
    0.178 (Depositor) 

Starting Model: in silico
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This is version 1.1 of the entry. See complete history


Literature

Understanding and manipulating the recognition of necrosis-inducing secreted protein 1 (NIS1) by BRI1-associated receptor kinase 1 (BAK1).

Han, R.Zhu, T.Kong, Z.Zhang, X.Wang, D.Liu, J.

(2024) Int J Biol Macromol 278: 134821-134821

  • DOI: https://doi.org/10.1016/j.ijbiomac.2024.134821
  • Primary Citation of Related Structures:  
    8XGL

  • PubMed Abstract: 

    Necrosis-inducing secreted protein 1 (NIS1) is a core effector of Ascomycota and Basidiomycota fungi. They inhibit the immune responses of host plants mainly through interaction with the multi-functional coreceptor BRI1-associated receptor kinase 1 (BAK1). However, the structural mechanism of the NIS1 family and how they are recognized by BAK1 are unknown. Herein, we report the first crystal structure of the NIS1 family protein, the Magnaporthe oryzae NIS1 (MoNIS1), analyze the recognition mechanism of NIS1s by BAK1, and explore regulation of the NIS1-BAK1 interaction by a chemical compound. MoNIS1 exists as a β barrel formed by eight β strands, a folding mode that has not been reported. Hydrogen/deuterium exchange mass spectrometry (HDX-MS) assay suggested that β4-β5 loop and β5 strand of MoNIS1 participate in OsBAK1 interaction, which was supported by further single-point mutational assays. For OsBAK1, HDX-MS assay suggested four regions involved in MoNIS1 interaction. Additionally, we identified a compound that blocks MoNIS1-OsBAK1 interaction in vitro and inhibits the virulence of M. oryzae on rice. Collectively, we determined the first structure of NIS1 family effectors, presented the recognition mechanism of NIS1 by BAK1, and showed that blocking NIS1-BAK1 interaction could be a new target for fungicide development.


  • Organizational Affiliation
    • Ministry of Agriculture Key Laboratory for Crop Pest Monitoring and Green Control, College of Plant Protection, China Agricultural University, Beijing 100193, China.

Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Necrosis-inducing secreted protein 1
A, B
130Pyricularia oryzaeMutation(s): 0 
Gene Names: NIS1MGG_02347
UniProt
Find proteins for G4MQL4 (Pyricularia oryzae (strain 70-15 / ATCC MYA-4617 / FGSC 8958))
Explore G4MQL4 
Go to UniProtKB:  G4MQL4
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupG4MQL4
Glycosylation
Glycosylation Sites: 2
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free:  0.194 (Depositor), 0.196 (DCC) 
  • R-Value Work:  0.177 (Depositor), 0.177 (DCC) 
  • R-Value Observed: 0.178 (Depositor) 
Space Group: H 3
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 129.8α = 90
b = 129.8β = 90
c = 79.96γ = 120
Software Package:
Software NamePurpose
PHENIXrefinement
PHASERphasing
XDSdata reduction
Aimlessdata scaling

Structure Validation

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Ligand Structure Quality Assessment 


Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Ministry of Science and Technology (MoST, China)China--

Revision History  (Full details and data files)

  • Version 1.0: 2024-09-18
    Type: Initial release
  • Version 1.1: 2024-11-13
    Changes: Structure summary