8YL6

EDS1-SAG101-NRG1A L134E heterotrimer


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.10 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Activation and inhibition mechanisms of a plant helper NLR.

Xiao, Y.Wu, X.Wang, Z.Ji, K.Zhao, Y.Zhang, Y.Wan, L.

(2025) Nature 

  • DOI: https://doi.org/10.1038/s41586-024-08517-3
  • Primary Citation of Related Structures:  
    8YL6, 8YL7

  • PubMed Abstract: 

    Plant nucleotide-binding leucine-rich repeat (NLR) receptors sense pathogen effectors and form resistosomes to confer immunity 1 . Some sensor NLR resistosomes produce small molecules to induce formation of a heterotrimer complex with two lipase-like proteins, EDS1 and SAG101, and a helper NLR called NRG1 (refs. 2,3 ). Activation of sensor NLR resistosomes also triggers NRG1 oligomerization and resistosome formation at the plasma membrane 4,5 . We demonstrate that the Arabidopsis AtEDS1-AtSAG101-AtNRG1A heterotrimer formation is stabilized by the AtNRG1A loss-of-oligomerization mutant L134E 5,6 . We report structures of AtEDS1-AtSAG101-AtNRG1A L134E and AtEDS1-AtSAG101-AtNRG1C heterotrimers with similar assembly mechanisms. AtNRG1A signalling is activated by the interaction with the AtEDS1-AtSAG101 heterodimer in complex with their small-molecule ligand. The truncated AtNRG1C maintains core interacting domains of AtNRG1A but develops further interactions with AtEDS1-AtSAG101 to outcompete AtNRG1A. Moreover, AtNRG1C lacks an N-terminal signalling domain and shows nucleocytoplasmic localization, facilitating its sequestration of AtEDS1-AtSAG101, which is also nucleocytoplasmic. Our study shows the activation and inhibition mechanisms of a plant helper NLR.


  • Organizational Affiliation

    State Key Laboratory of Plant Trait Design, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Protein EDS1623Arabidopsis thalianaMutation(s): 0 
Gene Names: EDS1EDS1-90EDS1AAt3g48090T17F15.40
UniProt
Find proteins for Q9SU72 (Arabidopsis thaliana)
Explore Q9SU72 
Go to UniProtKB:  Q9SU72
Entity Groups  
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UniProt GroupQ9SU72
Sequence Annotations
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  • Reference Sequence
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Senescence-associated carboxylesterase 101537Arabidopsis thalianaMutation(s): 0 
Gene Names: SAG101At5g14930F2G14.50
EC: 3.1.1.1
UniProt
Find proteins for Q4F883 (Arabidopsis thaliana)
Explore Q4F883 
Go to UniProtKB:  Q4F883
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UniProt GroupQ4F883
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  • Reference Sequence
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
Probable disease resistance protein At5g66900809Arabidopsis thalianaMutation(s): 1 
Gene Names: At5g66900MUD21.16
UniProt
Find proteins for Q9FKZ1 (Arabidopsis thaliana)
Explore Q9FKZ1 
Go to UniProtKB:  Q9FKZ1
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UniProt GroupQ9FKZ1
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
A1L15
Query on A1L15

Download Ideal Coordinates CCD File 
D [auth A][[(2~{R},3~{R},4~{R},5~{R})-5-(6-aminopurin-9-yl)-4-[(2~{S},3~{R},4~{S},5~{R})-5-[[[[(2~{R},3~{S},4~{R},5~{R})-5-(6-aminopurin-9-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methoxy-oxidanyl-phosphoryl]oxy-oxidanyl-phosphoryl]oxymethyl]-3,4-bis(oxidanyl)oxolan-2-yl]oxy-3-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate
C25 H37 N10 O26 P5
BLHBPWIRUPJXKW-VIUUMBSUSA-N
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.10 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Natural Science Foundation of China (NSFC)China32270304
Chinese Academy of SciencesChinaXDB27040214

Revision History  (Full details and data files)

  • Version 1.0: 2025-01-29
    Type: Initial release
  • Version 1.1: 2025-02-26
    Changes: Data collection, Database references