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Open data
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Basic information
| Entry | Database: PDB / ID: 8yl7 | |||||||||||||||||||||||||||
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| Title | EDS1-SAG101-NRG1C heterotrimer | |||||||||||||||||||||||||||
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Keywords | IMMUNE SYSTEM/HYDROLASE / Effector-triggered immunity (ETI) / Enhanced Disease Susceptibility1 / Senescence-Associated Gene101 / N Required Gene 1.3 / IMMUNE SYSTEM / IMMUNE SYSTEM-HYDROLASE complex | |||||||||||||||||||||||||||
| Function / homology | Function and homology informationpositive regulation of defense response to oomycetes / positive regulation of leaf senescence / aerenchyma formation / EDS1 disease-resistance complex / leaf abscission / systemic acquired resistance / systemic acquired resistance, salicylic acid mediated signaling pathway / defense response to other organism / plant-type hypersensitive response / response to singlet oxygen ...positive regulation of defense response to oomycetes / positive regulation of leaf senescence / aerenchyma formation / EDS1 disease-resistance complex / leaf abscission / systemic acquired resistance / systemic acquired resistance, salicylic acid mediated signaling pathway / defense response to other organism / plant-type hypersensitive response / response to singlet oxygen / positive regulation of defense response to bacterium / lipase activity / carboxylesterase / regulation of hydrogen peroxide metabolic process / carboxylesterase activity / carboxylic ester hydrolase activity / lipid catabolic process / positive regulation of defense response to virus by host / chloroplast / lipid metabolic process / defense response to Gram-negative bacterium / response to hypoxia / endoplasmic reticulum / protein homodimerization activity / nucleus / membrane / cytoplasm / cytosol Similarity search - Function | |||||||||||||||||||||||||||
| Biological species | ![]() | |||||||||||||||||||||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.1 Å | |||||||||||||||||||||||||||
Authors | Wu, X.X. / Xiao, Y.Y. / Wang, Z.Z. / Zhang, Y. / Wan, L. | |||||||||||||||||||||||||||
| Funding support | China, 2items
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Citation | Journal: Nature / Year: 2025Title: Activation and inhibition mechanisms of a plant helper NLR. Authors: Yinyan Xiao / Xiaoxian Wu / Zaiqing Wang / Kexin Ji / Yang Zhao / Yu Zhang / Li Wan / ![]() Abstract: Plant nucleotide-binding leucine-rich repeat (NLR) receptors sense pathogen effectors and form resistosomes to confer immunity. Some sensor NLR resistosomes produce small molecules to induce ...Plant nucleotide-binding leucine-rich repeat (NLR) receptors sense pathogen effectors and form resistosomes to confer immunity. 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. ). Activation of sensor NLR resistosomes also triggers NRG1 oligomerization and resistosome formation at the plasma membrane. We demonstrate that the Arabidopsis AtEDS1-AtSAG101-AtNRG1A heterotrimer formation is stabilized by the AtNRG1A loss-of-oligomerization mutant L134E. 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. | |||||||||||||||||||||||||||
| History |
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 8yl7.cif.gz | 271.1 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb8yl7.ent.gz | Display | PDB format | |
| PDBx/mmJSON format | 8yl7.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/yl/8yl7 ftp://data.pdbj.org/pub/pdb/validation_reports/yl/8yl7 | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 39384MC ![]() 8yl6C M: map data used to model this data C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
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Assembly
| Deposited unit | ![]()
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Components
| #1: Protein | Mass: 71784.195 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
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| #2: Protein | Mass: 62153.391 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
| #3: Protein | Mass: 47602.734 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
| #4: Chemical | ChemComp-A1L15 / [[( Mass: 1048.481 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C25H37N10O26P5 / Feature type: SUBJECT OF INVESTIGATION |
| Has ligand of interest | Y |
| Has protein modification | N |
-Experimental details
-Experiment
| Experiment | Method: ELECTRON MICROSCOPY |
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| EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
| Component | Name: EDS1-SAG101-NRG1C heterotrimer / Type: COMPLEX / Entity ID: #1-#3 / Source: RECOMBINANT |
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| Source (natural) | Organism: ![]() |
| Source (recombinant) | Organism: ![]() |
| Buffer solution | pH: 7.5 |
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Vitrification | Cryogen name: ETHANE |
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Electron microscopy imaging
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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| Microscopy | Model: FEI TITAN KRIOS |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 1800 nm / Nominal defocus min: 1000 nm |
| Image recording | Electron dose: 55.4 e/Å2 / Film or detector model: FEI FALCON IV (4k x 4k) |
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Processing
| CTF correction | Type: NONE | ||||||||||||||||||||||||
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| 3D reconstruction | Resolution: 3.1 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 161763 / Symmetry type: POINT | ||||||||||||||||||||||||
| Refinement | Cross valid method: NONE Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2 | ||||||||||||||||||||||||
| Displacement parameters | Biso mean: 168.11 Å2 | ||||||||||||||||||||||||
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China, 2items
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FIELD EMISSION GUN